Author: "Obraztsov, V F" / Topic: high energy physics::phenomenology - Searchworks@Jio Institute Digital Library Search Results

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39 results on '"Obraztsov, V F"'

1. Search for heavy neutrino in $K^{+} \to \mu^{+} \nu_{H}$ decay

Author: Sadovsky, A. S., Kurshetsov, V. F., Filin, A. P., Akimenko, S. A., Artamonov, A. V., Blik, A. M., Brekhovskikh, V. V., Burtovoy, V. S., Donskov, S. V., Inyakin, A. V., Gorin, A. M., Khaustov, G. V., Kholodenko, S. A., Kolosov, V. N., Konstantinov, A. S., Leontiev, V. M., Lishin, V. A., Medynsky, M. V., Mikhailov, Yu. V., Obraztsov, V. F., Polyakov, V. A., Popov, A. V., Romanovsky, V. I., Rykalin, V. I., Samoilenko, V. D., Semenov, V. K., Stenyakin, O. V., Tchikilev, O. G., Uvarov, V. A., Yushchenko, O. P., Duk, V. A., Filippov, S. N., Gushchin, E. N., Khudyakov, A. A., Kravtsov, V. I., Kudenko, Yu. G., Polyarush, A. Yu., Bychkov, V. N., Kekelidze, G. D., Lysan, V. M., and Zalikhanov, B. Zh.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract: A high statistics data sample of the $K^{+}\to\mu^{+}\nu_{\mu}$ decay was accumulated by the OKA experiment in 2012. The missing mass analysis was performed to search for the decay channel $K^{+}\to\mu^{+}\nu_{H}$ with a hypothetic stable heavy neutrino in the final state. The obtained missing mass spectrum does not show peaks which could be attributed to existence of stable heavy neutrinos in the mass range (220 $< m_{\nu_{H}}, Comment: 11 pages, 10 figures
Published: 2017

2. Search for heavy neutrino in $K^{+} \to ��^{+} ��_{H}$ decay

Author: Sadovsky, A. S., Kurshetsov, V. F., Filin, A. P., Akimenko, S. A., Artamonov, A. V., Blik, A. M., Brekhovskikh, V. V., Burtovoy, V. S., Donskov, S. V., Inyakin, A. V., Gorin, A. M., Khaustov, G. V., Kholodenko, S. A., Kolosov, V. N., Konstantinov, A. S., Leontiev, V. M., Lishin, V. A., Medynsky, M. V., Mikhailov, Yu. V., Obraztsov, V. F., Polyakov, V. A., Popov, A. V., Romanovsky, V. I., Rykalin, V. I., Samoilenko, V. D., Semenov, V. K., Stenyakin, O. V., Tchikilev, O. G., Uvarov, V. A., Yushchenko, O. P., Duk, V. A., Filippov, S. N., Gushchin, E. N., Khudyakov, A. A., Kravtsov, V. I., Kudenko, Yu. G., Polyarush, A. Yu., Bychkov, V. N., Kekelidze, G. D., Lysan, V. M., and Zalikhanov, B. Zh.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment
Abstract: A high statistics data sample of the $K^{+}\to��^{+}��_��$ decay was accumulated by the OKA experiment in 2012. The missing mass analysis was performed to search for the decay channel $K^{+}\to��^{+}��_{H}$ with a hypothetic stable heavy neutrino in the final state. The obtained missing mass spectrum does not show peaks which could be attributed to existence of stable heavy neutrinos in the mass range (220 $< m_{��_{H}}, 11 pages, 10 figures
Published: 2017
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3. Search for the $\phi1860$ Pentaquark at COMPASS

Author: Ageev, E. S., Alexakhin, V. Y. U., Alexandrov, Y. U., Alexeev, G. D., Amoroso, A., Badelek, B., Balestra, F., Ball, J., Baum, G., Bedfer, Y., Berglund, P., Bernet, C., Bertini, R., Birsa, R., Bisplinghoff, J., Bordalo, P., Bradamante, Franco, Bressan, Andrea, Brona, G., Burtin, E., Bussa, M. P., Bytchkov, V. N., Cerini, L., Chapiro, A., Cicuttin, A., Colantoni, M., Colavita, A. A., Costa, S., Crespo, M. L., D'Hose, N., DALLA TORRE, S., Dasgupta, S. S., DE MASI, R., Dedek, N., Denisov, O. Y. U., Dhara, L., DIAZ KAVKA, V., Dinkelbach, A. M., Dolgopolov, A. V., Donskov, S. V., Dorofeev, V. A., Doshita, N., Duic, V., Dunnweber, W., Ehlers, J., Eversheim, P. D., Eyrich, W., Faessler, M., Falaleev, V., Fauland, P., Ferrero, A., Ferrero, L., Finger, M., Fischer, H., Franz, J., Friedrich, J. M., Frolov, V., Fuchs, U., Garfagnini, R., Gautheron, F., Gavrichtchouk, O. P., Gerassimov, S., Geyer, R., Giorgi, Marcello, Gobbo, B., Goertz, S., Gorin, A. M., Grajek, O. A., Grasso, A., Grube, B., Grunemaier, A., Hannappel, J., VON HARRACH, D., Hasegawa, T., Hedicke, S., Heinsius, F. H., Hermann, R., Hess, C., Hinterberger, F., VON HODENBERG, M., Horikawa, N., Horikawa, S., Ilgner, C., Ioukaev, A. I., Ishimoto, S., Ivanov, O., Iwata, T., Jahn, R., Janata, A., Joosten, R., Jouravlev, N. I., Kabuss, E., Kalinnikov, V., Kang, D., Karstens, F., Kastaun, W., Ketzer, B., Khaustov, G. V., Khokhlov, Y. U. A., Khomutov, N. V., Kisselev, Y. U., Klein, F., Koivuniemi, J. H., Kolosov, V. N., Komissarov, E. V., Kondo, K., Konigsmann, K., Konoplyannikov, A. K., Konorov, I., Konstantinov, V. F., Korentchenko, A. S., Korzenev, A., Kotzinian, A. M., Koutchinski, N. A., Kowalik, K., Kravchuk, N. P., Krivokhizhin, G. V., Kroumchtein, Z. V., Kuhn, R., Kunne, F., Kurek, K., Ladygin, M. E., Lamanna, M., LE GOFF, J. M., Leberig, M., Lichtenstadt, J., Liska, T., Ludwig, I., Maggiora, A., Maggiora, M., Magnon, A., Mallot, G. K., Manuilov, I. V., Marchand, C., Marroncle, J., Martin, Anna, Marzec, J., Matsuda, T., Maximov, A. N., Medved, K. S., Meyer, W., Mielech, A., Mikhailov, Y. U. V., Moinester, M. A., Nahle, O., Nassalski, J., Neliba, S., Neyret, D. P., Nikolaenko, V. I., Nozdrin, A. A., Obraztsov, V. F., Olshevsky, A. G., Ostrick, M., Padee, A., Pagano, P., Panebianco, S., Panzieri, D., Paul, S., Pereira, H. D., Peshekhonov, D. V., Peshekhonov, V. D., Piragino, G., Platchkov, S., Platzer, K., Pochodzalla, J., Polyakov, V. A., Popov, A. A., Pretz, J., Procureur, S., Quintans, C., Ramos, S., Rebourgeard, P. C., Reicherz, G., Reymann, J., Rozhdestvensky, A. M., Rondio, E., Sadovski, A. B., Saller, E., Samoylenko, V. D., Sandacz, A., Sapozhnikov, M. G., Savin, IGOR A., Schiavon, Paolo, Schill, C., Schmidt, T., Schmitt, H., Schmitt, L., Shevchenko, O. Y. U., Shishkin, A. A., Siebert, H. W., Sinha, L., Sissakian, A. N., Skachkova, A., Slunecka, M., Smirnov, G. I., Sozzi, F., Sugonyaev, V. P., Srnka, A., Stinzing, F., Stolarski, M., Sulc, M., Sulej, R., Takabayashi, N., Tchalishev, V. V., Tessarotto, F., Teufel, A., Tkatchev, L. G., Toeda, T., Tretyak, V. I., Trousov, S., Varanda, M., Virius, M., Vlassov, N. V., Wagner, M., Webb, R., Weise, E., Weitzel, Q., Wiesmann, M., Windmolders, R., Wirth, S., Wislicki, W., Zanetti, A. M., Zaremba, K., Zhao, J., Ziegler, R., Zvyagin, A., E. S., Ageev, Alexakhin, V. Y. U., Alexandrov, Y. U., G. D., Alexeev, A., Amoroso, B., Badelek, F., Balestra, J., Ball, G., Baum, Y., Bedfer, P., Berglund, C., Bernet, R., Bertini, R., Birsa, J., Bisplinghoff, P., Bordalo, Bradamante, Franco, Bressan, Andrea, G., Brona, E., Burtin, M. P., Bussa, V. N., Bytchkov, L., Cerini, A., Chapiro, A., Cicuttin, M., Colantoni, A. A., Colavita, S., Costa, M. L., Crespo, N., D'Hose, S., DALLA TORRE, S. S., Dasgupta, R., DE MASI, N., Dedek, Denisov, O. Y. U., L., Dhara, V., DIAZ KAVKA, A. M., Dinkelbach, A. V., Dolgopolov, S. V., Donskov, V. A., Dorofeev, N., Doshita, V., Duic, W., Dunnweber, J., Ehler, P. D., Eversheim, W., Eyrich, M., Faessler, V., Falaleev, P., Fauland, A., Ferrero, L., Ferrero, M., Finger, Jr, H., Fischer, J., Franz, J. M., Friedrich, V., Frolov, U., Fuch, R., Garfagnini, F., Gautheron, O. P., Gavrichtchouk, S., Gerassimov, R., Geyer, Giorgi, Marcello, B., Gobbo, S., Goertz, A. M., Gorin, O. A., Grajek, A., Grasso, B., Grube, A., Grunemaier, J., Hannappel, D., VON HARRACH, T., Hasegawa, S., Hedicke, F. H., Heinsiu, R., Hermann, C., He, F., Hinterberger, M., VON HODENBERG, N., Horikawa, S., Horikawa, C., Ilgner, A. I., Ioukaev, S., Ishimoto, O., Ivanov, T., Iwata, R., Jahn, A., Janata, R., Joosten, N. I., Jouravlev, E., Kabu, V., Kalinnikov, D., Kang, F., Karsten, W., Kastaun, B., Ketzer, G. V., Khaustov, Khokhlov, Y. U. A., N. V., Khomutov, Kisselev, Y. U., F., Klein, J. H., Koivuniemi, V. N., Kolosov, E. V., Komissarov, K., Kondo, K., Konigsmann, A. K., Konoplyannikov, I., Konorov, V. F., Konstantinov, A. S., Korentchenko, A., Korzenev, A. M., Kotzinian, N. A., Koutchinski, K., Kowalik, N. P., Kravchuk, G. V., Krivokhizhin, Z. V., Kroumchtein, R., Kuhn, F., Kunne, K., Kurek, M. E., Ladygin, M., Lamanna, J. M., LE GOFF, M., Leberig, J., Lichtenstadt, T., Liska, I., Ludwig, A., Maggiora, M., Maggiora, A., Magnon, G. K., Mallot, I. V., Manuilov, C., Marchand, J., Marroncle, Martin, Anna, J., Marzec, T., Matsuda, A. N., Maximov, K. S., Medved, W., Meyer, A., Mielech, Mikhailov, Y. U. V., M. A., Moinester, O., Nahle, J., Nassalski, S., Neliba, D. P., Neyret, V. I., Nikolaenko, A. A., Nozdrin, V. F., Obraztsov, A. G., Olshevsky, M., Ostrick, A., Padee, P., Pagano, S., Panebianco, D., Panzieri, S., Paul, H. D., Pereira, D. V., Peshekhonov, V. D., Peshekhonov, G., Piragino, S., Platchkov, K., Platzer, J., Pochodzalla, V. A., Polyakov, A. A., Popov, J., Pretz, S., Procureur, C., Quintan, S., Ramo, P. C., Rebourgeard, G., Reicherz, J., Reymann, A. M., Rozhdestvensky, E., Rondio, A. B., Sadovski, E., Saller, V. D., Samoylenko, A., Sandacz, M. G., Sapozhnikov, IGOR A., Savin, Schiavon, Paolo, C., Schill, T., Schmidt, H., Schmitt, L., Schmitt, Shevchenko, O. Y. U., A. A., Shishkin, H. W., Siebert, L., Sinha, A. N., Sissakian, A., Skachkova, M., Slunecka, G. I., Smirnov, F., Sozzi, V. P., Sugonyaev, A., Srnka, F., Stinzing, M., Stolarski, M., Sulc, R., Sulej, N., Takabayashi, V. V., Tchalishev, F., Tessarotto, A., Teufel, L. G., Tkatchev, T., Toeda, V. I., Tretyak, S., Trousov, M., Varanda, M., Viriu, N. V., Vlassov, M., Wagner, R., Webb, E., Weise, Q., Weitzel, M., Wiesmann, R., Windmolder, S., Wirth, W., Wislicki, A. M., Zanetti, K., Zaremba, J., Zhao, R., Ziegler, and A., Zvyagin
Subjects: Physics, Particle physics, Large Hadron Collider, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Nuclear Theory, High Energy Physics::Phenomenology, Hyperon, FOS: Physical sciences, 01 natural sciences, Pentaquark, High Energy Physics - Experiment, Baryon, High Energy Physics - Experiment (hep-ex), Exotic baryon, Compass, 0103 physical sciences, COMPASS experiment, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Narrow Xi-pi+- and Xi-bar+pi+- resonances produced by quasi-real photons have been searched for by the COMPASS experiment at CERN. The study was stimulated by the recent observation of an exotic baryonic state decaying into Xi-pi-, at a mass of 1862 MeV, interpreted as a pentaquark. While the ordinary hyperon states Xi(1530)^0 and Xi-bar(1530)^0 are clearly seen, no exotic baryon is observed in the data taken in 2002 and 2003., Comment: 10 pages, 5 figures
Published: 2005

4. Measurement and interpretation of fermion-pair production at LEP energies above the Z resonance

Author: Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, Alemany-Fernandez, R, Allmendinger, T, Allport, P P, Amaldi, Ugo, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W D, Arnoud, Y, Ask, S, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G J, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K H, Begalli, M, Behrmann, A, Ben-Haim, E, Benekos, N, Benvenuti, A C, Bérat, C, Berggren, M, Berntzon, L, Bertrand, D, Besançon, M, Besson, N, Bloch, D, Blom, M, Bluj, M, Bonesini, M, Boonekamp, M, Booth, P S L, Borisov, G, Botner, O, Bouquet, B, Bowcock, T J V, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Brückman, P, Brunet, J M, Bugge, L, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Shlyapnikov, P, Chudoba, J, Chung, S U, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M J, Crennell, D J, Cuevas-Maestro, J, D'Hondt, J, Dalmau, J, Da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, de Boer, Wim, De Clercq, C, De Lotto, B, De Maria, N, De Min, A, De Paula, L, Di Ciaccio, L, Di Simone, A, Doroba, K, Drees, J, Dris, M, Eigen, G, Ekelöf, T J C, Ellert, M, Elsing, M, Espirito-Santo, M C, Fanourakis, G K, Fassouliotis, D, Feindt, M, Fernández, J, Ferrer, A, Ferro, F, Flagmeyer, U, Föth, H, Fokitis, E, Fulda-Quenzer, F, Fuster, J, Gandelman, M, García, C, Gavillet, P, Gazis, E, Gokieli, R, Golob, B, Gómez-Ceballos, G, Gonçalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Herr, H, Hoffman, J, Holmgren, S O, Holt, P J, Houlden, M A, Hultqvist, K, Jackson, J N, Jarlskog, G, Jarry, P, Jeans, D, Johansson, E K, Johansson, P D, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Katsanevas, S, Katsoufis, E, Kernel, G, Kersevan, B P, Kerzel, U, Kiiskinen, A P, King, B T, Kjaer, N J, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kuznetsov, O, Krumshtein, Z, Kucharczyk, M, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, J H, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, McNulty, R, Meroni, C, Migliore, E, Mitaroff, W A, Mjörnmark, U, Moa, T, Moch, M, Mönig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Müller, U, Münich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Nikolenko, M, Oblakowska-Mucha, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, R, Österberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, J P, Palka, H, Papadopoulou, T D, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V F, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M E, Polok, G, Pozdnyakov, V, Pukhaeva, N, Pullia, A, Rames, J, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P B, Richard, F, Rídky, J, Rivero, M, Rodríguez, D, Romero, A, Ronchese, P, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ryabtchikov, D, Sadovskii, A, Salmi, L, Salt, J, Sander, C, Savoy-Navarro, A, Schwickerath, U, Segar, A, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassoff, Tz, Stanitzki, M, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, Tabarelli de Fatis, T, Taffard, A C, Tegenfeldt, F, Timmermans, J, Tkatchev, L G, Tobin, M, Todorovova, S, Tomé, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M L, Tyapkin, I A, Tyapkin, P, Tzamarias, S, Uvarov, V, Valenti, G, van Dam, P, Van Eldik, J, Van Lysebetten, A, Van Remortel, N, Van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, A J, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O P, Zalewska-Bak, A, Zalewski, P, Zavrtanik, D, Zhuravlov, V, Zimin, N I, Zintchenko, A, Zupan, M, Cossutti, F., DELLA RICCA, Giuseppe, Vitale, Lorenzo, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Student Lab and Education, (Astro)-Particles Physics, Faculty of Sciences, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, T. ALDERWEIRELD, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P.P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W.-D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J.E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G.J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K.-H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, L. BERNTZON, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P.S.L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T.J.V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J.M. BRUNET, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, PH. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S.U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M.J. COSTA, D. CRENNELL, J. CUEVAS, J. D'HONDT, J. DALMAU, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M.C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, PH. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, H. HERR, J. HOFFMAN, S.-O. HOLMGREN, P.J. HOLT, M.A. HOULDEN, K. HULTQVIST, J.N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E.K. JOHANSSON, P.D. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B.P. KERSEVAN, U. KERZEL, B.T. KING, N.J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J.H. LOPES, J.M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J.-C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R.MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, R. NICOLAIDOU, V. NIKOLAENKO, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J.P. PALACIOS, H. PALKA, TH.D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M.E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, J. RAMES, A. READ, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY-NAVARRO, U. SCHWICKERATH, A. SEGAR, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, A.C. TAFFARD, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTAM, M. TROCHIMCZUK, C. TRONCON, M.-L. TURLUER, I.A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A.J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N.I. ZIMIN, Z. ZINTCHENKO, M. ZUPAN, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, Alemany Fernandez, R, Allmendinger, T, Allport, P, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Ask, S, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Beeks, K, Begalli, M, Behrmann, A, Ben Haim, E, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bloch, D, Blom, M, Bluj, M, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Botner, O, Bouquet, B, Bowcock, T, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Bruckman, P, Brunet, J, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chudoba, J, Chung, S, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M, Crennell, D, Cuevas, J, D'Hondt, J, Dalmau, J, Da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Maria, N, De Min, A, De Paula, L, Di Ciaccio, L, Di Simone, A, Doroba, K, Drees, J, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, Fulda Quenzer, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Herr, H, Hoffman, J, Holmgren, S, Holt, P, Houlden, M, Hultqvist, K, Jackson, J, Jarlskog, G, Jarry, P, Jeans, D, Johansson, E, Johansson, P, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Katsanevas, S, Katsoufis, E, Kernel, G, Kersevan, B, Kerzel, U, King, B, Kjaer, N, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipmacka, A, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, Mc Nulty, R, Meroni, C, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Nikolaenko, V, Nikolenko, M, Oblakowska Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Pozdniakov, V, Pukhaeva, N, Pullia, A, Rames, J, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Rivero, M, Rodriguez, D, Romero, A, Ronchese, P, Roudeau, P, Rovelli, T, Ruhlmann Kleider, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, Sander, C, Savoy Navarro, A, Schwickerath, U, Segar, A, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, Tabarelli, T, Taffard, A, Tegenfeldt, F, Timmermans, J, Tkatchev, L, Tobin, M, Todorovova, S, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Uvarov, V, Valenti, G, Van Dam, P, Van Eldik, J, Van Remorte, N, Van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zhuravlov, V, Zimin, N, Zintchenko, A, Zupan, M, and DELPHI Collaboration
Subjects: Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), Physics beyond the Standard Model, STANDARD MODEL, FOS: Physical sciences, 01 natural sciences, Resonance (particle physics), Standard Model, High Energy Physics - Experiment, CROSS-SECTIONS, Electroweak Physics, Particle Physics, LEP2 COLLIDER, High Energy Physics - Experiment (hep-ex), E(+)E(-) COLLISIONS, BHABHA SCATTERING, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, EXTRA DIMENSIONS, 010306 general physics, Engineering (miscellaneous), Boson, DELPHI, Physics, 010308 nuclear & particles physics, LARGE EXTRA DIMENSIONS, High Energy Physics::Phenomenology, Supersymmetry, Fermion, CONTACT INTERACTIONS, PHYSICS EVENT GENERATION, LARGE ELECTRON POSITRON COLLIDER, OF-MASS ENERGIES, Pair production, PARTICLE PHYSICS, Large extra dimension, High Energy Physics::Experiment, FERMION PAIR, Particle Physics - Experiment
Abstract: This paper presents DELPHI measurements and interpretations of cross-sections, forward-backward asymmetries, and angular distributions, for the e+e- -> ffbar process for centre-of-mass energies above the Z resonance, from sqrt(s) ~ 130 - 207 GeV at the LEP collider. The measurements are consistent with the predictions of the Standard Model and are used to study a variety of models including the S-Matrix ansatz for e+e- -> ffbar scattering and several models which include physics beyond the Standard Model: the exchange of Z' bosons, contact interactions between fermions, the exchange of gravitons in large extra dimensions and the exchange of sneutrino in R-parity violating supersymmetry., 79 pages, 16 figures, Accepted by Eur. Phys. J. C
Published: 2006

5. Contributions of leptoquark interactions into the tensor and scalar form factors of K to pi l nu_l decay

Author: Kiselev, V. V., Likhoded, A. K., and Obraztsov, V. F.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment
Abstract: In the framework of scalar-vector dominance we calculate the hadronic matrix elements of scalar and tensor effective quark currents induced by virtual leptoquark interactions. Combined bounds on the product of couplings and leptoquark masses are obtained from experimental data., 19 pages, 15 eps-figures, discusion on the lepton polarization added
Published: 2002

6. Limits on the Masses of Supersymmetric Particles at $\sqrt{s}$=189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., Alderweireld, T., Alekseev, G D., Alemany, R., Allmendinger, T., Allport, P P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N C., Benvenuti, A C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Bilenkii, M S., Bizouard, M.A., Bloch, D., Blom, H M., Bonesini, M., Boonekamp, M., Booth, P S L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R A., Brueckman, P., Brunet, J.M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Charpentier, P., Checchia, P., Chelkov, G A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H B., Crennell, D., Crosetti, G., Cuevas-Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P.A., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekeloef, T., Ellert, M., Elsing, M., Engel, J.P., Espirito-Santo, M C., Fanourakis, G K., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A G., Fruehwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Geralis, T., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Higon, E., Holmgren, S O., Holt, P J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Hughes, G J., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keraenen, R., Kernel, G., Kersevan, B P., Khokhlov, Yu., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J N., Mahon, J R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R P., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Merle, E., Meroni, C., Meyer, W T., Migliore, E., Mirabito, L., Mitaroff, W A., Mjoernmark, U., Moa, T., Moch, M., Moeller, R., Moenig, K., Monge, M R., Moraes, D., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Mundim, L M., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V F., Olshevskii, A G., Onofre, A., Orava, R., Orazi, G., Oesterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P N., Read, A L., Rebecchi, P., Redaelli, N G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A M., Seibert, N., Sekulin, R., Sette, G., Shellard, R C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G R., Sokolov, A., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Taffard, A., Chikilev, O., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M L., Tyapkin, I A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Dam, P., Van Den Boeck, W., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A J., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., Zoller, P., Zumerle, G., Zupan, M., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: Nuclear Theory, High Energy Physics::Phenomenology, decision maker, FOS: Physical sciences, user model, documentation, High Energy Physics - Experiment, strategic information, High Energy Physics - Experiment (hep-ex), economic intelligence process, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, competitive intelligence, information retrieval, Nuclear Experiment, watcher, Particle Physics - Experiment, infomediary
Abstract: Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and other supersymmetric particles within the MSSM framework. R-parity conservation has been assumed. The lightest neutralino was found to be heavier than 32.3 GeV/c^2 independent of the m_0 value. The lightest chargino, the second-to-lightest neutralino, the next-to-heaviest neutralino, the heaviest neutralino, the sneutrino and the right-handed selectron were found to be heavier than 62.4 GeV/c^2, 62.4 GeV/c^2, 99.9 GeV/c^2, 116.0 GeV/c^2, 61.0 GeV/c^2, and 87.0 GeV/c^2, respectively. These limits do not depend on m_0 or M_2 and are valid for 1 \leq tan(beta) \leq 40, in the mu region where the lightest neutralino is the LSP. If the sneutrino is heavier than the chargino the lightest neutralino has to be heavier than 32.4 GeV/c^2. The effects of mixings in the third family of sfermions on these limits are discussed. The confidence level of all limits given is 95%., 22 pages, 7 figures
Published: 2000

7. Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., Alemany, R., Allmendinger, T., Allport, P P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., Benekos, N C., Benvenuti, A C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Bilenkii, M S., Bizouard, M A., Bloch, D., Blom, H M., Bonesini, M., Boonekamp, M., Booth, P S L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R A., Bruckman, P., Brunet, J M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H B., Crennell, D., Crosetti, G., Cuevas-Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P A., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito-Santo, M C., Fanourakis, G K., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Higon, E., Holmgren, S O., Holt, P J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Hughes, G J., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keranen, R., Kernel, G., Kersevan, B P., Khokhlov, Yu., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Lapin, V., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Merle, E., Meroni, C., Meyer, W T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M R., Moraes, D., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Mundim, L M., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B S., Niezurawski, P., Nikolenko, M., Nomokonov, V P., Nygren, A., Obraztsov, V F., Olshevskii, A G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P N., Read, A L., Rebecchi, P., Redaelli, N G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A M., Seibert, N., Sekulin, R., Sette, G., Shellard, R C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A N., Smadja, G., Smirnova, O., Smith, G R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M L., Tyapkin, I A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Van Den Boeck, W., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A J., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., Zoller, P., Zumerle, G., Zupan, M., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract: Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e+e- collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL\bar{E} term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at sqrt(s) = 183 GeV. The present 95% C.L. limits on supersymmetric particle masses are: m_{\tilde��^0} > 30 GeV/c^2 and m_{\tilde��^\pm} > 94 GeV/c^2; m_{\tilde��} > 76.5 GeV/c^2 (direct and indirect decays); m_{\tilde{\ell}_R} > 83 GeV/c^2 (indirect decay only)., 18 pages, 6 figures
Published: 2000

8. A search for invisible Higgs bosons produced in $e^{+} e^{-}$ interactions up to $\sqrt{s}$ = 189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G. D., Alemany, R., Allmendinger, T., Allport, P. P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E. G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W. D., Arnoud, Y., Asman, B., Augustin, J. -E, Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D. Yu, Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K. H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu, Belous, K., Benekos, N. C., Benvenuti, A. C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Bilenkii, M. S., Bizouard, M. A., Bloch, D., Blom, H. M., Bonesini, M., Boonekamp, M., Booth, P. S. L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R. A., Bruckman, P., Brunet, J. M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M. V., Cattai, A., Cavallo, F. R., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G. A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H. B., Crennell, D., Crosetti, G., Cuevas-Maestro, J., Czellar, S., D Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P. A., Demaria, N., Angelis, A., Boer, W., Clercq, C., Lotto, B., Min, A., Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J. P., Espirito-Santo, M. C., Fanourakis, G. K., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A. G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E. N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu, Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F. J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J. J., Herquet, P., Herr, H., Higon, E., Holmgren, S. O., Holt, P. J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Hughes, G. J., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E. K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E. C., Keranen, R., Kernel, G., Kersevan, B. P., Khokhlov, Yu, Khomenko, B. A., Khovanskii, N. N., Kiiskinen, A., King, B. J., Kinvig, A., Kjaer, N. J., Klapp, O., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J. W., Lane, D. W., Lapin, V., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J. G., Lopes, J. H., Lopez, J. M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J. R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J. C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I. Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Mcpherson, G., Merle, E., Meroni, C., Meyer, W. T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M. R., Moraes, D., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Mundim, L. M., Muresan, R., Murray, W. J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Francesco Luigi Navarria, Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B. S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V. F., Olshevskii, A. G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T. D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H. T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M. E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P. B., Resvanis, L. K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E. I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu, Segar, A. M., Seibert, N., Sekulin, R., Sette, G., Shellard, R. C., Siebel, M., Simard, L. C., Simonetto, F., Sissakian, A. N., Smadja, G., Smirnova, O., Smith, G. R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz, Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L. G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M. L., Tyapkin, I. A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Dam, P., Den Boeck, W., Doninck, W. K., Eldik, J., Lysebetten, A., Remortel, N., Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L. S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A. J., Weiser, C., Wicke, D., Wickens, J. H., Wilkinson, G. R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zintchenko, A., Zoller, P., Zumerle, G., Zupan, M., Damoiseaux, Magali, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the centre-of-mass energy of 188.6~{\mbox{$ {\mathrm{GeV}}$}}. d The hadronic and muon pair final states of the d {\mbox{$ {\mathrm Z} $}} d boson were analysed. No signal was found. d Upper limits on the cross-section and the corresponding Higgs boson mass d limits were set d at 95\% confidence level. Combining these results with DELPHI results for the vd a 95\% confidence level Higgs mass lower limit of 92.3~{\mbox{$d {\mathrm{GeV}}$}} was obtained, independentd of the branching ratio into visible and invisible decays.
Published: 2000

9. Cross-sections and leptonic forward-backward asymmetries from the Z(0) running of LEP

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., Allport, P P., Almehed, S., Amaldi, U., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Beilliere, P., Belokopytov, Yu., Benvenuti, a C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bianchi, F., Bigi, M., Bilenkii, M S., Bizouard, M A., Bloch, D., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P S L., Borgland, a W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Branchini, P., Brenke, T., Brenner, R A., Brueckman, P., Brunet, J M., Bugge, L., Buran, T., Burgsmueller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, a J., Camporesi, T., Canale, V., Canepa, M., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Cerruti, C., Chabaud, V., Chapkin, M., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G A., Chen, M., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Collins, P., Colomer, M., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J H., Crawley, H B., Crennell, D., Crosetti, G., Cuevas-Maestro, J., Czellar, S., Dalmagne, B., Damgaard, G., Davenport, M., da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P A., Demaria, N., de Angelis, A., de Boer, W., de Brabandere, S., de Clercq, C., de Lotto, B., de Min, A., de Paula, L., Dijkstra, H., Di Ciaccio, L., Di Diodato, A., Djannati, A., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Drees, K A., Dris, M., Duperrin, A., Durand, J D., Ehret, R., Eigen, G., Ekeloef, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Erzen, B., Espirito-Santo, M C., Falk, E., Fanourakis, G K., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Fichet, S., Firestone, A., Fischer, P.A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, a G., Fruehwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Gerber, J.P., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gorski, M., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Green, C., Grefrath, A., Gris, P., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Harris, F J., Hedberg, V., Heising, S., Henriques, R., Hernandez, J J., Herquet, P., Herr, H., Hessing, T L., Heuser, J M., Higon, E., Holmgren, S O., Holt, P J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keraenen, R., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Knoblauch, D., Kokkinias, P., Konoplyannikov, A., Koratzinos, M., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kreuter, C., Kriznic, E., Krstic, J., Krumshtein, Z., Kubinec, P., Kucewicz, W., Kurvinen, K., Lamsa, J W., Lanceri, L., Lane, D W., Langefeld, P., Lapin, V., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Lokajicek, M., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J R., Maio, A., Malek, A., Malmgren, T G M., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Masik, J., Mazzucato, F., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Mcpherson, G., Meroni, C., Migliore, E., Mirabito, L., Mitaroff, W A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M R., Moreau, X., Morettini, P., Morton, G., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Navarria, F L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B S., Nieuwenhuizen, M., Nikolaenko, V., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Obraztsov, V F., Olshevskii, a G., Onofre, A., Orava, R., Orazi, G., Oesterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Piana, G., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rakoczy, D., Ratoff, P N., Read, a L., Rebecchi, P., Redaelli, N G., Regler, M., Reid, D., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, Henri, Schwemling, P., Schwickerath, U., Schyns, M a E., Scuri, F., Seager, P., Sedykh, Yu., Segar, a M., Sekulin, R., Shellard, R C., Sheridan, A., Silvestre, R., Simard, L., Simonetto, F., Sissakian, a N., Skaali, T B., Smadja, G., Smirnova, O., Smith, G R., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Sponholz, P., Squarcia, S., Stampfer, D., Stanescu, C., Stanic, S., Stapnes, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli de Fatis, T., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L G., Todorov, T., Todorova, S., Toet, D Z., Tomaradze, a G., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M L., Tyapkin, I A., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., van Apeldoorn, G W., van Dam, P., van Doninck, W K., van Eldik, J., van Lysebetten, A., van Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wetherell, a M., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wlodek, T., Wolf, G., Yi, J., Yushchenko, O., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zucchelli, G C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Delphi (IHEF, IoP, FNWI), Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), Electron–positron annihilation, SQUARE-ROOT-S=29 GEV, Hadron, CHARGE ASYMMETRIES, 01 natural sciences, Resonance (particle physics), Luminosity, Standard Model, Nuclear physics, MONTE-CARLO, SLC ENERGIES, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, ANGLE BHABHA SCATTERING, 010306 general physics, Engineering (miscellaneous), DELPHI, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Order (ring theory), Weinberg angle, MUON-PAIR PRODUCTION, SQUARE-ROOT-S, LARGE ELECTRON POSITRON COLLIDER, OF-MASS ENERGIES, PARTICLE PHYSICS, Large Electron–Positron Collider, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract: During 1993 and 1995 LEP was run at 3 energies near the Z $^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z $^0$ peak. In total DELPHI accumulated data corresponding to an integrated luminosity of approximately 116 pb $^{-1}$ . Analyses of the hadronic cross-sections and of the cross-sections and forward-backward asymmetries in the leptonic channels used the most precise evaluations of the LEP energies. In the dimuon channel, events with a photon radiated from the initial state have been used to probe the cross-sections and asymmetries down to PETRA energies. Model independent fits to all DELPHI lineshape and asymmetry data from 1990 to 1995 have been carried out giving values of the resonance parameters: \begin{eqnarray*} M_Z & = & 91.1863\pm0.0028{\mbox{\rm{GeV}}} {\mbox{\rm{GeV}}} & = & 2.4876\pm0.0041{\mbox{\rm{GeV}}} \sigma_{0} & = & 41.578\pm0.069{\mbox{\rm{nb}}} R_l & = & 20.730\pm0.060 {\rm{A^{0}_{\mbox{\scriptsize FB}}}} & = & 0.0187\pm0.0019. \end{eqnarray*} These values are significantly more precise than those previously published. The results are interpreted in terms of the Standard Model.
Published: 2000

10. Hadronization properties of b quarks compared to light quarks in $e^{+} e^{-} \to q\overline{q}$ from 183 to 200 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., Alemany, R., Allmendinger, T., Allport, P P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., Benekos, N C., Benvenuti, A C., Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M S., Bizouard, M A., Bloch, D., Blom, H M., Bonesini, M., Boonekamp, M., Booth, P S L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R A., Bruckman, P., Brunet, J M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Chabaud, V., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H B., Crennell, D., Crepe, S., Crosetti, G., Cuevas-Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P A., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J D., Eigen, G., Ekeloef, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A G., Fruehwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Hessing, T L., Heuser, J M., Higon, E., Holmgren, S O., Holt, P J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G J., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keranen, R., Kernel, G., Kersevan, B P., Khokhlov, Yu., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Lapin, V., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J R., Maio, A., Malek, A., Malmgren, T G M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W A., Mjoernmark, U., Moa, T., Moch, M., Moller, R., Moenig, K., Monge, M R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V F., Olshevskii, A G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P N., Read, A L., Rebecchi, P., Redaelli, N G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A M., Seibert, N., Sekulin, R., Shellard, R C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A N., Smadja, G., Smirnova, O., Smith, G R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L G., Tobin, M., Todorova, S., Tomaradze, A G., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtroemer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M L., Tyapkin, I A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Van Den Boeck, W., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A J., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., Zoller, P., Zucchelli, G C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: High Energy Physics::Phenomenology, Nuclear Theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract: The DELPHI detector at LEP has collected 54 pb −1 of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb −1 around 189 GeV during 1998, and 187 pb −1 between 192 and 200 GeV during 1999. These data were used to measure the average charged particle multiplicity in e + e − →b b ̄ events, 〈n〉 b b ̄ , and the difference δ bl between 〈n〉 b b ̄ and the multiplicity, 〈n〉 l l ̄ , in generic light quark (u,d,s) events: δ bl (183 GeV) =4.55±1.31( stat )±0.73( syst ) , δ bl (189 GeV) =4.43±0.85( stat )±0.61( syst ) , δ bl (200 GeV) =3.39±0.89( stat )±1.01( syst ) . This result is consistent with QCD predictions, while it is inconsistent with calculations assuming that the multiplicity accompanying the decay of a heavy quark is independent of the mass of the quark itself. (Elsevier)
Published: 2000

11. Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., Alemany, R., Allmendinger, T., Allport, P P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., Benekos, N C., Benvenuti, a C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M S., Bizouard, M A., Bloch, D., Blom, H M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P S L., Borgland, a W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R A., Brueckman, P., Brunet, J M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Chabaud, V., Chapkin, M., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H B., Crennell, D., Crepe, S., Crosetti, G., Cuevas-Maestro, J., Czellar, S., Davenport, M., da Silva, W., Della Ricca, G., Delpierre, P A., Demaria, N., de Angelis, A., de Boer, W., de Clercq, C., de Lotto, B., de Min, A., de Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J D., Eigen, G., Ekeloef, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito-Santo, M C., Fanourakis, G K., Fassouliotis, D., Fayot, J., Feindt, M., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, a G., Fruehwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F J., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Hessing, T L., Heuser, J M., Higon, E., Holmgren, S O., Holt, P J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G J., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keraenen, R., Kernel, G., Kersevan, B P., Khokhlov, Yu., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Lapin, V., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J R., Maio, A., Malek, A., Malmgren, T G M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Mcpherson, G., Meroni, C., Meyer, W T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W A., Mjoernmark, U., Moa, T., Moch, M., Moller, R., Moenig, K., Monge, M R., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V F., Olshevskii, a G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P N., Read, a L., Rebecchi, P., Redaelli, N G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, a M., Seibert, N., Sekulin, R., Shellard, R C., Siebel, M., Simard, L., Simonetto, F., Sissakian, a N., Smadja, G., Smirnova, O., Smith, G R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli de Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L G., Tobin, M., Todorova, S., Tomaradze, a G., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M L., Tyapkin, I A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., van Dam, P., van den Boeck, W., van Doninck, W K., van Eldik, J., van Lysebetten, A., van Remortel, N., van Vulpen, I., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, a J., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., Zoller, P., Zucchelli, G C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract: Searches for neutral Higgs bosons in the Standard Model and the MSSM have been performed using data collected by the DELPHI experiment at a centre-of-mass energy of 188.7 GeV, corresponding to an integrated luminosity of 158 pb^{-1}. These analyses are used, in combination with our results from lower energies, to set new 95% confidence level lower mass bounds on the Standard Model Higgs boson (94.6 GeV/c^2) and on the lightest neutral scalar (82.6 GeV/c^2) and neutral pseudoscalar (84.1 GeV/c^2) Higgs bosons in a representative scan of the MSSM parameters. The results are also interpreted in the framework of a general two-Higgs doublet model., Comment: 36 pages, 21 figures, see also Addendum in hep-ex/0104021
Published: 2000

12. Identified Charged Particles and Resonances in Quark and Gluon Jets

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., Alemany, R., Allmendinger, T., Allport, P P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., Benekos, N C., Benvenuti, A C., Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M S., Bizouard, M A., Bloch, D., Blom, H M., Bonesini, M., Boonekamp, M., Booth, P S L., Borgland, A W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R A., Bruckman, P., Brunet, J M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Chabaud, V., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H B., Crennell, D., Crepe, S., Crosetti, G., Cuevas-Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P A., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J D., Eigen, G., Ekeloef, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A G., Fruehwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Hessing, T L., Heuser, J M., Higon, E., Holmgren, S O., Holt, P J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G J., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keranen, R., Kernel, G., Kersevan, B P., Khokhlov, Yu., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Lapin, V., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J R., Maio, A., Malek, A., Malmgren, T G M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W T., Migliore, E., Mirabito, L., Mitaroff, W A., Mjoernmark, U., Moa, T., Moch, M., Moller, R., Moenig, K., Monge, M R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V F., Olshevskii, A G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P N., Read, A L., Rebecchi, P., Redaelli, N G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Seemann, F., Segar, A M., Seibert, N., Sekulin, R., Shellard, R C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A N., Smadja, G., Smirnova, O., Smith, G R., Solovianov, A., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Taffard, A., Chikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L G., Tobin, M., Todorova, S., Tomaradze, A G., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtroemer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M L., Tyapkin, I A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Van Den Boeck, W., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A J., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., Zoller, P., Zucchelli, G C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: human communication, Nuclear Theory, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], interaction, High Energy Physics::Experiment, communication and language, Nuclear Experiment
Abstract: A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and quark jets. The production l identified particles were found to be softer in gluon kjets, with a higher multiplicity in gluon jets as obseecharged particles. A significant proton enhancement indindicating that baryon production proceeds directly fr.The maxima, $\xi^*$, of the $\xi$-distributions for kakjets are observed to be different. The study of isoscanshows no indication of an excess of $\phi(1020)$ produ.
Published: 2000

13. Measurement of the strange quark forward-backward asymmetry around the Z$^0$ peak

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G D, Alemany, R, Allmendinger, T, Allport, P P, Almehed, S, Amaldi, Ugo, Amapane, N, Amato, S, Anassontzis, E G, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Behrmann, A, Beillière, P, Belokopytov, Yu A, Belous, K S, Benekos, N C, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Blom, H M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Buschbeck, Brigitte, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chierici, R, Shlyapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crépé, S, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, J D, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Espirito-Santo, M C, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, García, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gómez-Ceballos, G, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F J, Hedberg, V, Heising, S, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huber, M, Huet, K, Hughes, G J, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Kernel, G, Kersevan, Borut P, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kinvig, A, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kriznic, E, Krumshtein, Z, Kubinec, P, Kurowska, J, Kurvinen, K L, Lamsa, J, Lane, D W, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, W T, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Moch, M, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Müller, U, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, B S, Niezurawski, P, Nikolenko, M, Nomokonov, V P, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Rehn, J, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seibert, N, Sekulin, R L, Shellard, R C, Siebel, M, Simard, L C, Simonetto, F, Sissakian, A N, Smadja, G, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Taffard, A C, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, L G, Tobin, M, Todorova-Nová, S, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tortosa, P, Tranströmer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Dam, P, Van den Boeck, W, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Remortel, N, Van Vulpen, I B, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, A J, Weiser, C, Wicke, D, Wickens, J H, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zinchenko, A I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Delphi (IHEF, IoP, FNWI), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Strange quark, Particle physics, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Cherenkov detector, High Energy Physics::Lattice, media_common.quotation_subject, Electron–positron annihilation, Nuclear Theory, Forward backward, 7. Clean energy, 01 natural sciences, Asymmetry, Bottom quark, law.invention, Nuclear physics, law, 0103 physical sciences, DELPHI, DETECTOR, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Cherenkov radiation, media_common, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Weinberg angle, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A precise measurement of the strange quark forward-backward asymmetry used 3.2M multihadronic events around the Z° peak collected by the DELPHI experiment from 1992 to 1995. The ring imaging Cherenkov detectors in the barrel and end-cap regions identify high energy charged kaons which tag the s quark. The s quark asymmetry was measured at different centre-of-mass energies; m particular at the Z° pole A°ss̄ = 0.1008 ± 0.0113 (stat.) ± 0.0040 (syst.), (1) taking the expected d and u quark asymmetries from the Standard Model. The quark flavour fractions are assumed from the Standard Model and the fragmentation process is modelled by JETSET. From the s quark pole asymmetry the electroweak mixing angle was determined: sin2 θlepteff = 0.2321 ± 0.0029. (2) The parity violating coupling of the s quark to the Z was determined to be: As = 0.909 ± 0.102 (stat.) ± 0.036(syst.). (3).
Published: 2000

14. Determination of the $e^+ e^- \to \gamma \gamma(\gamma)$ cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., Alemany, R., Allmendinger, T., Allport, P P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, E G., Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., Benekos, N C., Benvenuti, a C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Bilenkii, M S., Bizouard, M.A., Bloch, D., Blom, H M., Bonesini, M., Boonekamp, M., Booth, P S L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R A., Bruckman, P., Brunet, J.M., Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Castillo-Gimenez, M V., Cattai, A., Cavallo, F R., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H B., Crennell, D., Crosetti, G., Cuevas-Maestro, J., Czellar, S., d'Hondt, J., Dalmau, J., Davenport, M., da Silva, W., Della Ricca, G., Delpierre, P.A., Demaria, N., de Angelis, A., de Boer, W., de Clercq, C., de Lotto, B., de Min, A., de Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito-Santo, M C., Fanourakis, G K., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, a G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hajduk, Z., Hallgren, A., Hamacher, K., Hansen, J., Harris, F J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Higon, E., Holmgren, S O., Holt, P J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Hughes, G J., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keranen, R., Kernel, G., Kersevan, B P., Khokhlov, Yu., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kucewicz, W., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Lapin, V., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J N., Mahon, J R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R P., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Mcpherson, G., Merle, E., Meroni, C., Meyer, W T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M R., Moraes, D., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Mundim, L M., Muresan, R., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Oblakowska-Mucha, A., Obraztsov, V F., Olshevskii, a G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Papadopoulou, T D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P N., Read, a L., Rebecchi, P., Redaelli, N G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, a M., Seibert, N., Sekulin, R., Sette, G., Shellard, R C., Siebel, M., Simard, L., Simonetto, F., Sissakian, a N., Smadja, G., Smirnova, O., Smith, G R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli de Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M L., Tyapkin, I A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., van Dam, P., van den Boeck, W., van Eldik, J., van Lysebetten, A., van Remortel, N., van Vulpen, I., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, a J., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., Zoller, P., Zumerle, G., Zupan, M., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Internet, reality TV, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Website, Big Brother, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, voyeurism, television, Particle Physics - Experiment, visual rhetoric, High Energy Physics - Experiment
Abstract: A test of the QED process e+e- -> gamma gamma (gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LEP, reaching 202 GeV in the centre-of-mass. The total integrated luminosity amounts to 375.7 pb^{-1}. The differential and total cross-sections for the process e+e- -> gamma gamma were measured, and found to be in agreement with the QED prediction. 95% Confidence Level (C.L.) lower limits on the QED cut-off parameters of Lambda+ > 330 GeV and Lambda- > 320 GeV were derived. A 95% C.L. lower bound on the mass of an excited electron of 311 GeV/c^2 (for lambda_gamma = 1) was obtained. s-channel virtual graviton exchange was searched for, resulting in 95% C.L. lower limits on the string mass scale, M_S: M_S > 713 GeV/c^2 (lambda = 1) and M_S > 691 GeV/c^2 (lambda = -1)., Comment: 18 pages, 4 figures
Published: 2000

15. Determination of $P(c \to D^{*+})$ and $BR(c \to l^{+})$ at LEP 1

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, G D, Alemany, R, Allmendinger, T, Allport, P P, Almehed, S, Amaldi, Ugo, Amapane, N, Amato, S, Anassontzis, E G, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Behrmann, A, Beillière, P, Belokopytov, Yu A, Benekos, N C, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Blom, H M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschbeck, Brigitte, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chierici, R, Shlyapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crépé, S, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, J D, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, García, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerdyukov, L N, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gómez-Ceballos, G, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grimm, H J, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F J, Hedberg, V, Heising, S, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hughes, G J, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Kersevan, Borut P, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kinvig, A, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kriznic, E, Krstic, J, Krumshtein, Z, Kubinec, P, Kurowska, J, Kurvinen, K L, Lamsa, J, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, W T, Myagkov, A, Migliore, E, Mirabito, L, Mjörnmark, U, Moa, T, Moch, M, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Müller, U, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolenko, M, Nomokonov, V P, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwering, B, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Siebel, M, Simard, L C, Simonetto, F, Sissakian, A N, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, L G, Todorova-Nová, S, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Van Remortel, N, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, C F, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O P, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: The probability $P(c \rightarrow D^{*+})$ that a charm quark fragments into a $D^{*+}$ meson and the $c \rightarrow l^+$ semileptonic branching fraction were measured in $Z^0\ $ decay into $c\bar{c}$ events. \par % A double tag method based % on the detection of exclusively reconstructed $D$ mesons % accompanied by a slow pion or a lepton in the opposite hemisphere was used.\par From the analysis of 3.5 Million $Z^0\ $ events collected from 1992 to 1995, a sample of charm meson decays with $81\%$ $c\bar{c}$ purity was selected. % In this sample, a signal of $2371\pm140$ low momentum pions % originating from a $D^{*\pm}$ decay in the opposite hemisphere % was observed. The product of the $c \rightarrow D^{*+}$ fragmentation probability times the $D^{*+}\rightarrow D^0\pi^+$ branching fraction was measured to be: \begin{eqnarray*} P(c \rightarrow D^{*+})\cdot BR(D^{*+}\rightarrow D^0\pi^+) = 0.174\pm0.010(stat) \pm0.004(syst) \; . \end{eqnarray*} Using the world averaged value for $BR(D^{*+}\rightarrow D^0\pi^+)$, the fragmentation probability is inferred: \begin{eqnarray*} P(c \rightarrow D^{*+}) = 0.255\pm0.015(stat) \pm0.006(syst) \pm0.005 (syst.BR) \; . \end{eqnarray*} From the same sample, $1828\pm 51$ identified leptons in the opposite hemisphere were selected. From this sample, the charm semileptonic branching fraction was measured to be: \begin{eqnarray*} BR(c \rightarrow l^+) = 0.0958\pm0.0042(stat) \pm0.0028(syst) \; . \end{eqnarray*}
Published: 1999

16. Measurements of the Trilinear Gauge Boson Couplings WWV $(V \equiv \gamma,Z)$ in $e^+ e^-$ Collisions at 183 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, G D, Alemany, R, Allmendinger, T, Allport, P P, Almehed, S, Amaldi, Ugo, Amapane, N, Amato, S, Anassontzis, E G, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Behrmann, A, Beillière, P, Belokopytov, Yu A, Benekos, N C, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Blom, H M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschbeck, Brigitte, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chierici, R, Shlyapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crépé, S, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, J D, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, García, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerdyukov, L N, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gómez-Ceballos, G, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grimm, H J, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F J, Hedberg, V, Heising, S, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hughes, G J, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Kersevan, Borut P, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kinvig, A, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kriznic, E, Krstic, J, Krumshtein, Z, Kubinec, P, Kurowska, J, Kurvinen, K L, Lamsa, J, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, W T, Myagkov, A, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Moch, M, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Müller, U, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolenko, M, Nomokonov, V P, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwering, B, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Siebel, M, Simard, L C, Simonetto, F, Sissakian, A N, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, L G, Todorova-Nová, S, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Remortel, N, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, C F, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O P, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, and Zumerle, G
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented from data taken by DELPHI in 1997 at an energy of 183 GeV. From a study of the reactions $e^+ e^- \to W^+ W^-, e^+ e^- \to We\nu$ and $e^+ e^- \to \nu\nu\gamma$, values are obtained for $\Delta g_{1}^{Z}$ and $\Delta K_{\gamma}$, the differences of the $WWZ$ charge coupling and of the $WW\gamma$ dipole couplings from their Standard Model values, and for $\lambda_{\gamma}$, the $WW\gamma$ quadrupole coupling. The observations are consistent with the predictions of the Standard Model.
Published: 1999

17. Search for neutral Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 183 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, G D, Alemany, R, Allmendinger, T, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Anassontzis, E G, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Blom, H M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chierici, R, Shlyapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crépé, S, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, J D, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Fichet, S, Firestone, A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, García, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerdyukov, L N, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gómez-Ceballos, G, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grimm, H J, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F J, Hedberg, V, Heising, S, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hughes, G J, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Kersevan, Borut P, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kinvig, A, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kriznic, E, Krstic, J, Krumshtein, Z, Kubinec, P, Kurowska, J, Kurvinen, K L, Lamsa, J, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, W T, Myagkov, A, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Moch, M, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Müller, U, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolenko, M, Nomokonov, V P, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Siebel, M, Simard, L C, Simonetto, F, Sissakian, A N, Smadja, G, Smirnova, O G, Smith, G R, Sokolov, A, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Chikilev, O G, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, L G, Todorova-Nová, S, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, C F, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O P, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Neutral Higgs bosons were searched for in the data collected by DELPHI at a centre-of-mass energy of 183 GeV, corresponding to an integrated luminosity of 54 pb −1^{-1}−1. (Springer)
Published: 1999

18. A precise measurement of the partial decay width ratio $R_{b}^{0} = \Gamma_{b\overline{b}}/\Gamma_{had}$

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G D, Alemany, R, Allmendinger, T, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Anassontzis, E G, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Blom, H M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Damgaard, G, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, J D, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gómez-Ceballos, G, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grimm, H J, Gris, P, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Huet, K, Hughes, G J, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Kersevan, Borut P, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kinvig, A, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kriznic, E, Krstic, J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurowska, J, Kurvinen, K L, Lamsa, J, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Masik, J, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, W T, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Moch, M, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Müller, U, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolenko, M, Nomokonov, V P, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Siebel, M, Simard, L C, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tinti, N, Tkatchev, L G, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, C F, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The partial decay width of the Z to $\bb$ quark pairs has beenmeasured by the DELPHI detector at LEP using data taken in the years1992 to 1995.Decays of b-hadrons were tagged by several methods usingtracks with large impact parameters and/or reconstructed secondary vertices, complemented by event shape variables.Combining these methods in a multivariate analysis the value\[\frac{\Gamma({\mathrm Z \rightarrow \bb}) }{ \Gamma({\mathrm {Z \rightarrow had}}) } = 0.21634 \pm 0.00067({\mathrm {stat}}) \pm 0.00060 ({\mathrm {syst}})\]was obtained, where the ${\mathrm c} \bar {\mathrm c}$ production fractionwas fixed to its Standard Model value.
Published: 1998

19. A study of the hadronic resonance structure in the decay $\tau \to 3\pi\nu_{\tau}$

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Brown, R, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Ghodbane, N, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sopczak, André, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The hadronic structure of the decay of the $\tau$ lepton to three charged particles, $\tau\rightarrow 3\pi\nu_\tau$, is studied using data collected by the DELPHI detector at LEP between 1992 and 1995. The invariant mass of the $3\pi$ system, $m_{3\pi}$, is fitted using the models of Kühn and Santamaria, Isgur Morningstar and Reader, and Feindt. The $3\pi$ mass spectrum and the Dalitz projections are compared with each model. Below \mbox{$m_{3\pi}^2 = 2.3~ {\GeV}^2$}, all are in good qualitative agreement. Above \mbox{$m_{3\pi}^2 = 2.3~ {\GeV}^2$}, anomalous behaviour is observed, consistent with the existence of a hitherto unseen decay mode of the $\tau$ through a radial excitation of the $a_1$ meson.
Published: 1998

20. Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krstic, J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Münich, K, Mulders, M, Mulet-Marquis, C, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Rames, J, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Silvestre, R, Simard, L C, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30 %, 136, 161, 172 and to 183 GeV for an integrated luminosity of 78.19.~pb$^{-1}$. %CR An agreement with the QED predictions was found and consequently The results agree with the QED prediction s. The lower limits (obtained including previously published results at the $\Zzero$ energies) on the QED cutoff parameters are $\Lambda_{+} > 253$~GeV and $\Lambda_{-} > 225$~GeV and the lower bo und on the mass of an excited electron with an effective coupling constant $\lambda_{\gamma} = 1$ is 231~GeV/$c^2$. %Upper limits on the branching ratios for the decays ${\rm Z}^0\rightarrow %\gam ma\gamma$, ${\rm Z}^0\rightarrow \pi^0\gamma$, % ${\rm Z}^0\rightarrow \eta\gamma$ %and ${\rm Z}^0\rightarrow \gamma\gamma\gamma$ have been determined to be 2.5 % $\times$ $10^{-5}$, 2.5 $\times$ $ 10^{-5}$, % 4.0 $\times$ $10^{-5}$, %and 9.1 $\times$ $10^{-4}$ respectively. All the limits are at the 95$\%$ confidence level.
Published: 1998

21. Measurement of $\mid V_{cs} \mid$ using W decays at LEP2

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., Allport, P P., Almehed, S., Amaldi, U., Amato, S., Anassontzis, E G., Andersson, P., Andringa, S., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D Y., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K H., Begalli, M., Beilliere, P., Belokopytov, Yu., Belous, K., Benvenuti, A C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bianchi, F., Bigi, M., Bilenky, M S., Bizouard, M A., Bloch, D., Blom, H M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P S L., Borgland, A W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Boyko, I., Bozovic, I., Bozzo, M., Branchini, P., Brenke, T., Brenner, R A., Bruckman, P., Brunet, J M., Bugge, L., Buran, T., Burgsmuller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, A J., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., CastilloGimenez, M V., Cattai, A., Cavallo, F R., Cerruti, C., Chabaud, V., Chapkin, M., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G A., Chen, M., Chierici, R., Chliapnikov, P V., Chochula, P., Chorowicz, V., Chudoba, J., Collins, P., Colomer, M., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J H., Crawley, H B., Crennell, D., Crosetti, G., CuevasMaestro, J., Czellar, S., Damgaard, G., Davenport, M., Da Silva, W., Deghorain, A., DellaRicca, G., Delpierre, P A., Demaria, N., De Angelis, A., De Boer, W., De Brabandere, S., DeClercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Di Diodato, A., Djannati, A., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Drees, K A., Dris, M., Duperrin, A., Durand, J.-D., Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Fichet, S., Firestone, A., Fischer, P.A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Gerber, J.P., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Green, C., Grefrath, A., Gris, P., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Harris, F J., Hedberg, V., Heising, S., Hernandez, J J., Herquet, P., Herr, H., Hessing, T L., Heuser, J M., Higon, E., Holmgren, S O., Holt, P J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E K., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keranen, R., Khomenko, B A., Khovanski, N N., Kiiskinen, A., King, B., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Knoblauch, D., Kokkinias, P., Koratzinos, M., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Krstic, J., Krumstein, Z., Kubinec, P., Kucewicz, W., Kurvinen, K., Lamsa, J W., Lane, D W., Langefeld, P., Lapin, V., Laugier, J P., Lauhakangas, R., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J G., Lopes, J H., Lopez, J M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J R., Maio, A., Malek, A., Malmgren, T G M., Malychev, V., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Mastroyiannopoulos, N., Matteuzzi, C., Matthiae, G., Mazik, J., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W A., Mjornmark, U., Moa, T., Moller, R., Monig, K., Monge, M R., Moreau, X., Morettini, P., Morton, G., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Navarria, F L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B S., Nikolaenko, V., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Obraztsov, V F., Olshevski, A G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Piana, G., Pierre, F., Pimenta, M., Podobnik, T., Pol, M E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rakoczy, D., Ratoff, P N., Read, A L., Rebecchi, P., Redaelli, N G., Regler, M., Reid, D., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, P., Schwickerath, U., Schyns, M A E., Scuri, F., Seager, P., Sedykh, Y., Segar, A M., Sekulin, R L., Shellard, R C., Sheridan, A., Silvestre, R., Simard, L., Simonetto, F., Sissakian, A N., SkaaliT, B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Sponholz, P., Squarcia, S., Stampfer, D., Stanescu, C., Stanic, S., Stapnes, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szeptycka, M., Tabarelli De Fatis, T., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L G., Todorov, T., Todorova, S., Toet, D Z., Tomaradze, A G., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Troncon, C., Tsirou, A., Turluer, M L., Tyapkin, I A., Tzamarias, S., Ueberschaer, B., Ullaland, O., Valenti, G., Vallazza, E., Van Apeldoorn, G W., Van Dam, P., Van Eldik, J., VanLysebetten, A., Van Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Vertogradov, L S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A S., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wicke, D., Wickens, J H., Wilkinson, G R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zucchelli, G C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract: Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured hadronic branching ratio of $W^{\pm}$ decays and by tagging the flavour of hadronic jets produced in $W^{\pm}$ decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains $|V_{cs}| = 0.91{+0.15 \atop -0.14}({\rm stat})\pm 0.05({\rm syst})$.
Published: 1998

22. Search for $B_s^0-\overline{B_s^0}$ oscillations

Author: Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., Allport, P P., Almehed, S., Amaldi, U., Amato, S., Andersson, P., Andreazza, A., Antilogus, P., Apel, W D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbi, M., Bardin, D Y., Barker, G., Baroncelli, A., Barring, O., Bates, M J., Battaglia, M., Baubillier, M., Baudot, J., Becks, K H., Begalli, M., Beilliere, P., Belokopytov, Yu., Belous, K., Benvenuti, A C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Bianchi, F., Bigi, M., Bilenky, M S., Billoir, P., Bizouard, M A., Bloch, D., Blume, M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P S L., Borgland, A W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T J V., Bozovic, I., Bozzo, M., Branchini, P., Brand, K D., Brenke, T., Brenner, R A., Brown, R C A., Bruckman, P., Brunet, J M., Bugge, L., Buran, T., Burgsmuller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, A J., Camporesi, T., Canale, V., Canepa, M., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M V., Cattai, A., Cavallo, F R., Chabaud, V., Chapkin, M., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G A., Chen, M., Chierici, R., Chliapnikov, P V., Chochula, P., Chorowicz, V., Chudoba, J., Cindro, V., Collins, P., Colomer, M., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J H., Crawley, H B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Dahm, J., Dalmagne, B., Damgaard, G., Dauncey, P D., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P A., Demaria, N., De Angelis, A., De Boer, W., De Brabandere, S., De Clercq, C., De La Vaissiere, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., DiDiodato, A., Djannati, A., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Drees, K A., Dris, M., Durand, J.-D., Edsall, D., Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Elsing, M., Engel, J.P., Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Feindt, M., Ferrari, P., Ferrer, A., Fichet, S., Filippas, T A., Firestone, A., Fischer, P.A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frodesen, A G., Fruhwirth, R., Fulda Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E N., Gele, D., Gerber, J.P., Gerdyukov, L., Gokieli, R., Goncalves, P., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu., Gracco, V., Graziani, E., Green, C., Grefrath, A., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Hajduk, Z., Hallgren, A., Hamacher, K., Harris, F J., Hedberg, V., Henriques, R., Hernandez, J J., Herquet, P., Herr, H., Hessing, T L., Heuser, J M., Higon, E., Holmgren, S O., Holt, P J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean Marie, B., Johansson, E K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kaiser, M., Kapusta, F., Karafasoulis, K., Karvelas, E., Katsanevas, S., Katsoufis, E C., Keranen, R., Khokhlov, Yu., Khomenko, B A., Khovanski, N N., King, B., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Knoblauch, D., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kronkvist, I., Krumstein, Z., Krupinski, W., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Laktineh, I., Lamsa, J W., Lanceri, L., Lane, D W., Langefeld, P., Laugier, J P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C K., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J G., Lopez, J M., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Maehlum, G., Mahon, J R., Maio, A., Malmgren, T G M., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Matorras, F., Matteuzzi, C., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Medbo, J., Merk, M., Meyer, S., Meyer, W T., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W A., Mjornmark, U., Moller, R., Monig, K., Monge, M R., Morettini, P., Muller, H., Muenich, K., Mulders, M., Mundim, L M., Murray, W J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Navarria, F L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B S., Nieuwenhuizen, M., Nikolaenko, V., Nikolenko, M., Niss, P., Nomerotski, A., Normand, A., Nygren, A., Oberschulte Beckmann, W., Obraztsov, V F., Olshevski, A G., Onofre, A., Orava, R., Orazi, G., Ortuno, S., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Paiano, S., Pain, R., Palka, H., Papadopoulou, T D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Pegoraro, M., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H T., Piana, G., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Podobrin, O., Pol, M E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P N., Read, A L., Reale, M., Rebecchi, P., Redaelli, N G., Regler, M., Reid, D., Reinhardt, R., Renton, P B., Resvanis, L K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Roos, L., Rosenberg, E I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann Kleider, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sannino, M., Schneider, H., Schwickerath, U., Schyns, M A E., Sciolla, G., Scuri, F., Seager, P., Sedykh, Y., Segar, A M., Seitz, A., Sekulin, R., Serbelloni, L., Shellard, R C., Sheridan, A., Siccama, I., Siegrist, P., Silvestre, R., Simonetto, F., Sisakian, A N., Skaali, T B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G R., Solovianov, O., Sosnowski, R., Souza Santos, D., Spassoff, Tz., Spiriti, E., Sponholz, P., Squarcia, S., Stampfer, D., Stanescu, C., Stanic, S., Stapnes, S., Stavitski, I., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Tavernet, J P., Tchikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L G., Todorov, T., Todorova, S., Toet, D Z., Tomaradze, A G., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Troncon, C., Tsirou, A., Turluer, M L., Tyapkin, I A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Apeldoorn, G W., Van Dam, P., Van Eldik, J., VanLysebetten, A., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A S., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Weiser, C., Wetherell, A M., Wicke, D., Wickens, J H., Wielers, M., Wilkinson, G R., Williams, W S C., Winter, M., Witek, M., Wlodek, T., Yi, J., Yip, K., Yushchenko, O., Zach, F., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zucchelli, G C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear Theory, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment
Abstract: Oscillations of $\mbox{B}^0_{\mathrm s}$ mesons were studied in events with a large transverse momentum lepton selected from 3.2 million hadronic $\Zz$ decays registered by DELPHI between 1991 and 1994. A limit on the mass difference between the physical $\mbox{B}^0_{\mathrm s}$ states \Delta m_s 6.5 ~ \mbox{ps}^{-1}~\mbox{at 95\% C.L.} was obtained by combining the results obtained in three channels.
Published: 1997

23. Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: High energy, Particle physics, Z(0) RESONANCE, Physics and Astronomy (miscellaneous), Electron–positron annihilation, HADRONIC Z-DECAYS, E+E-ANNIHILATION, ALPHA-S, POWER CORRECTIONS, MONTE-CARLO, QCD MODELS, ENERGY, FRAGMENTATION, PREDICTIONS, Hadron, Thrust, 01 natural sciences, 7. Clean energy, Partícules (Física nuclear), Nuclear physics, Fragmentation (mass spectrometry), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Detectors de radiació, DELPHI, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LARGE ELECTRON POSITRON COLLIDER, Charged particle, Large Electron–Positron Collider, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Inclusive charged particle and event shape distributions are measured using 321 hadronic events collected with the DELPHI experiment at LEP at effective centre of mass energies of 130 to 136 GeV. These distributions are presented and compared to data at lower energies, in particular to the precise Z data. Fragmentation models describe the observed changes of the distributions well. The energy dependence of the means of the event shape variables can also be described using second order QCD plus power terms. A method independent of fragmentation model corrections is used to determine $\alpha_s$ from the energy dependence of the mean thrust and heavy jet mass. It is measured to be: % %\alpha_s(M_{\rm Z}) = 0.116 \pm 0.002_{exp} \pm 0.007_{theo} % % %\noindent %from the data up to Z energies and \alpha_s(133\mbox{ GeV}) = 0.116 \pm 0.007_{exp} {^{+0.005}_{-0.004}}_{theo} %\noindent from the high energy data.
Published: 1997

24. Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ =161 GeV

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G, Sokolov, A, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an integrated luminosity of 10 pb$^{-1}$ at an $e^+e^-$ centre-of-mass energy of 161 GeV. The search for pair produced excited leptons established the limits $m_{e^*} > 79.6 $ GeV/$c^2$, $m_{\mu^*} > 79.6$ GeV/$c^2$, $m_{\tau^*} > 79.4$ GeV/$c^2$ and $m_{\nu^*} > 56.4$ GeV/$c^2$ at 95\% confidence level, assuming that the SU(2) and U(1) couplings of excited leptons are in the same ratio as for normal leptons and considering both left and right-handed components. Limits corresponding to other assumptions are also given. The search for single excited lepton production established upper limits on the ratio $\lambda/m_{\ell^*}$ of the coupling of the excited lepton to its mass.
Published: 1996

25. Search for neutralinos, scalar leptons and scalar quarks in $e^+ e^-$ interactions at $\sqrt{s}$=130 GeV and 136 GeV

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Using data accumulated by DELPHI during the November 1995 LEP run at 130~GeV -- 136~GeV, searches have been made for events with jets or leptons in conjunction with missing momentum. The results are interpreted in terms of limits on the production of neutralinos, scalar leptons, and scalar quarks.
Published: 1996

26. Search for the lightest chargino at $\sqrt{s}$ = 130 and 136 GeV in DELPHI

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search for pair production of the lightest chargino at $\rs=$ 130.4 and 136.3~GeV has been carried out using the data sample corresponding to the 5.92~${\rm pb}^{-1}$ recorded by the DELPHI detector during the high energy run of LEP in the last period of 1995. The theoretical reference model has been the Mi\-ni\-mal Supersymmetric Standard Model with R-parity conservation. The three topologies expected for the decay of a pair of charginos, namely two acoplanar leptons plus missing energy (\ll), two jets and an isolated lepton plus missing energy (\jjl) and missing energy in a hadronic environment (\jj), were investigated. No evidence of a signal was found. Lower mass limits were derived for various scenarios, including the case of a low mass difference between the chargino and the neutralino and of a light sneutrino. The mass limits range between 56.3~GeV/${\rm c}^2$ and the kinematic limit.
Published: 1996

27. Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), LEP (IHEF, IoP, FNWI), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Flores, Sylvie, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Electron–positron annihilation, Nuclear Theory, Hadron, 01 natural sciences, Omega, Measure (mathematics), DELPHI, hadronic Z0 decay, constrained fit, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Sigma, LARGE ELECTRON POSITRON COLLIDER, Baryon, E+E, PARTICLE PHYSICS, Production (computer science), High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is found to be: \begin{center} < \sig + \sigb > = \wffe{0.070}{0.010}{0.010 }{}. \end{center} \bigskip The \Omega^- production rate is similarly measured to be: \begin{center} < \Omega^- + \overline{\Omega}^+ > = \wffe{0.0014}{0.0002}{0.0004}{} \end{center} by a combination of methods using constrained fits to the whole decay chain and particle identification.
Published: 1996

28. Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leser, G, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: This letter reports the results of the measurement of single photon production in the reaction $e^+e^- \rightarrow \gamma +$ invisible particles at centre-of-mass energies $\sqrt{s}=$~130 and 136 GeV and an integrated luminosity of 5.83~pb$^{-1}$, collected with the DELPHI detector at LEP. %No anomalous signal has been observed. The contribution from The signal is compatible with the prediction of the Standard Model for the process $ e^+e^- \rightarrow \nu \bar{\nu}\gamma $, and the number of neutrino families has been determined to be $N_{\nu}=3.1 \pm 0.6 $. Limits have been derived on anomalous neutral gauge boson couplings and on compositeness in the framework of a specific model.
Published: 1996

29. Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large transverse momentum (p_t) relative to the jet axis and from the analysis of the flight distance distribution of secondary vertices tagged by either a high p_t lepton or an identified kaon. In the opposite hemisphere of the event, the charge of the initial quark has been evaluated using a high p_t lepton, a charged kaon or the mean jet charge. With 1.7 million hadronic Z^0 decays recorded by DELPHI between 1991 and 1993, \Delta m_d is found to be: \Delta m_d = 0.531^{+0.050}_{-0.046} ~(stat.) \pm 0.078 ~(syst.) ~ {\mathrm{ps}}^{-1} \, .
Published: 1996

30. An upper limit for $Br(Z^0 \rightarrow ggg)$ from Symmetric 3-jet $Z^0$ Hadronic Decays

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Sokolov, A, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: High Energy Physics::Lattice, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An upper limit for $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric three--jet events collected by the DELPHI experiment at LEP during 1991-1994, the 95\% confidence level upper limit is deduced to be: $BR(Z^0\rightarrow3g)\leq 1.6\times 10^{-2}$ for the JADE and $BR(Z^0\rightarrow3g)\leq 1.5\times 10^{-2}$ for the DURHAM jet--finder.
Published: 1996

31. Study of rare b decays with the DELPHI detector at LEP

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leser, G, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, UCL - SST/IRMP - Institut de recherche en mathématique et physique, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, LEP (IHEF, IoP, FNWI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, charmless decay, Particle physics, Physics and Astronomy (miscellaneous), Meson, Electron–positron annihilation, Hadron, DELPHI, rare decay of beauty particles, 01 natural sciences, Nuclear physics, S-GAMMA%22">B->S-GAMMA, SEARCH, ASYMMETRIES, STANDARD, MESONS, 0103 physical sciences, Radiative transfer, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Gauge boson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Detector, Fermion, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Rare decays of beauty particles were studied in several charmless modes using the data collected with the DELPHI detector at LEP from 1991 to 1994. These decays are mediated by both tree level $b \rightarrow u$ and one-loop penguin $b \rightarrow s$, $d$ transitions. Evidence for charmless $B$ decays was obtained in two body hadronic modes. The branching ratios of $B^{0}_{d,s}$ to $\pi^+ \pi^-$ or $K^+ \pi^-$ and $B^{-}_{u}$ to $\rho^0 \pi^-$ or $K^{*0} \pi^-$ were found to be $(2.8 ^{+1.5}_{-1.0} \pm 0.2) \times 10^{-5}$ and $(1.7 ^{+1.2}_{-0.8} \pm 0.2) \times 10^{-4}$ respectively. The fraction of these decays with a charged kaon in the final state that is not from the spectator $s$ quark, was measured to be $0.58 \pm 0.18$. Upper limits were set at 90\% confidence level on the branching ratios %for other two body modes including the $\Lambda_b^0\to pK^-$ decay and for three and four body charmless hadronic decays in the range of \mbox{$(1 - 3)\times10^{-4}$}, for inclusive radiative $b \rightarrow s \gamma$ decays at $5.4\times10^{-4}$, for the exclusive radiative decays $B_{d}^{0} \rightarrow K^*(892)^0\gamma$ and $B_{s}^{0} \rightarrow \phi(1020) \gamma$ at $2.1\times10^{-4}$ and $7.0\times10^{-4}$ respectively, and for dineutrino decays, $b \rightarrow s \nu \bar \nu$, in the exclusive channels $B_{d}^{0} \rightarrow K^*(892)^0 \nu \bar \nu$ and $B_{s}^{0} \rightarrow \phi(1020) \nu \bar \nu$ at 1.0 $\times$ 10$^{-3}$ and 5.4 $\times$ 10$^{-3}$ respectively. The limits on dineutrino decays constrain theories with a new $U(1)$ gauge boson coupling predominantly to the third family of fermions.
Published: 1996

32. Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be = 23.84 \pm 0.51 (stat) \pm 0.52 (syst). When compared to lower energy data, the value measured is consistent with the evolution predicted by QCD with corrections at next-to-leading order, for a value \alpha_s(130 {\mathrm{GeV}}) = 0.105 \pm 0.003 (stat) \pm 0.008 (syst).
Published: 1996

33. Measurements of the Lineshape of the $Z^{0}$ and Determination of Electroweak Parameters from its Hadronic and Leptonic Decays

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Budziak, A P, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Falaleev, V P, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hill, T S, Hodgson, S D, Hofmokl, T, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Kucewicz, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lévy, J M, Lieb, E H, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska-Bak, A, Zanini, L, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Zúñiga, J, Delphi (IHEF, IoP, FNWI), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, LEP-SLC ENERGIES, Elementary particle, 01 natural sciences, 7. Clean energy, Partícules (Física nuclear), PHYSICS, Nuclear physics, BHABHA SCATTERING, Particle decay, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, MASS CORRECTIONS, 010306 general physics, Detectors de radiació, DELPHI, Bhabha scattering, Physics, 010308 nuclear & particles physics, Z0 resonance, mass corrections, radiative corrections, Mathematics::History and Overview, High Energy Physics::Phenomenology, Electroweak interaction, Weinberg angle, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: During the LEP running periods in 1990 and 1991 DELPHI has accumulated approximately 450000 Z0 decays into hadrons and charged leptons. The increased event statistics coupled with improved analysis techniques and improved knowledge of the LEP beam energies permit significantly better measurements of the mass and width of the Z0 resonance. Model independent fits to the cross sections and leptonic forward-backward asymmetries yield the following Z0 parameters: the mass and total width M(Z) = 91.187 +/- 0.009 GeV, GAMMA(Z) = 2.486 +/- 0.012 GeV, the hadronic and leptonic partial widths GAMMA(had) = 1.725 +/- 0.012GeV, GAMMA(l) = 83.01 +/- 0.52 MeV, the invisible width GAMMA(inv) = 512 +/- 10 MeV, the ratio of hadronic to leptonic partial widths R(l) = 20.78 +/- 0.15, and the Born level hadronic peak cross section sigma0 = 40.90 +/- 0.28 nb. Using these results and the value of alpha(s) determined from DELPHI data, the number of light neutrino species is determined to be 3.08 +/- 0.05. The individual leptonic widths are found to be: GAMMA(e) = 82.93 +/- 0.70 MeV, GAMMA(mu) = 83.20 +/- 1.11 MeV and GAMMA(tau) = 82.89 +/- 1.31 MeV. Using the measured leptonic forward-backward asymmetries and assuming lepton universality, the squared vector and axial-vector couplings of the Z0 to charged leptons are found to be g(V)l2 = (1.47 +/- 0.51) x 10(-3) and g(A)l2 = 0.2483 +/- 0.0016. A full Standard Model fit to the data yields a value of the top mass m(t) = 115(-82)+52 (expt.)-24(+23) (Higgs) GeV, corresponding to a value of the weak mixing angle sin2 theta(eff)lept = 0.2339 +/- 0.0015(expt.)-0.0004(+0.0001) (Higgs). Values are obtained for the variables S and T, or epsilon1 and epsilon3 which parameterize electroweak loop effects.
Published: 1994

34. A measurement of the <tex>B^{0}_{S}$</tex> meson mass

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Budziak, A P, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Formenti, F, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hill, T S, Hodgson, S D, Hofmokl, T, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kaiser, M, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krupinski, W, Kucewicz, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lévy, J M, Lieb, E H, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Novák, M, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska-Bak, A, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Nuclear and High Energy Physics, Particle physics, Meson, Electron–positron annihilation, QUARK EFFECTIVE THEORY, Nuclear Theory, Hadron, Combined use, Elementary particle, Tracking (particle physics), LEP collider, DECAYS, DELPHI, B0_s mass, exclusive hadronic final state, law.invention, Nuclear physics, law, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], B meson, Nuclear Experiment, Collider, BS, Physics, HADRONS, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Strange beauty meson Bs0 have been reconstructed through exclusive hadronic final states, using the data collected in 1992 by the DELPHI experiment at the LEP collider. The analysis relies on the combined use of accurate tracking and of the hadron identification capabilities of DELPHI. Three Bs0 decay candidates have been selected over a negligible background using theDs−π+, Ds−a1+ (1260) and View the MathML source decay modes, with identified kaons in the final state. The Bs0 meson mass is measured to be mBs = (5374± 16± 2) MeV/ c2.
Published: 1994

35. Search for the standard model Higgs boson in Z0 decays

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brunet, J M, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Normand, Ainsley, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stavropoulos, G D, Stepaniak, K, Stichelbaut, F, Stocchi, A, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turula, M, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Delphi (IHEF, IoP, FNWI)
Subjects: COLLISIONS, Nuclear and High Energy Physics, Particle physics, Higgs boson, LOWEST ORDER CALCULATIONS, MONTE-CARLO SIMULATION, LEP, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, DELPHI, Z0 decay, Standard Model, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Fermion, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract: A search for the Standard Model Higgs boson was performed in the data sample of around 1 million hadronic Z0 decays recorded in 1991 and 1992 with the DELPHI detector at LEP. The Higgs boson was searched for through its production in association with either neutrinos, electrons or muons. Four low mass events remain after the selections in the charged leptonic channels, that are likely to be due to background, especially four fermion processes. These results restrict the mass of the Standard Model Higgs boson to be larger than 55.7 GeV/c2 at the 95% confidence level.
Published: 1994

36. DETERMINATION OF ALPHA-S FROM THE SCALING VIOLATION IN THE FRAGMENTATION FUNCTIONS IN E+E- ANNIHILATION

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, David, P, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Ershaidat, N, Fassouliotis, D, Feindt, Michael, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Gerdyukov, L N, Giacomelli, P, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grosse-Wiesmann, P, Grossetête, B, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henkes, T, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Huet, K, Hulth, P O, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Królikowski, J, Kronkvist, I J, Krüner-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K L, Kussmaul, T, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Maron, T, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Navarria, Francesco Luigi, Negri, P, Nicolaidou, R, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, L P, Pierre, F, Pimenta, M, Pingot, O, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, S, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zuberi, R, Zukanovich-Funchal, R, Zumerle, G, Zúñiga, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quark, Nuclear and High Energy Physics, Particle physics, HADRONIC-Z-DECAYS, JET PRODUCTION-RATES, LUND MONTE-CARLO, LEADING ORDER, QUANTUM CHROMODYNAMICS, PERTURBATIVE QCD, PARTON DENSITIES, RESONANCE, SCATTERING, PHYSICS, High Energy Physics::Lattice, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Boson, Quantum chromodynamics, Physics, Coupling constant, Annihilation, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A determination of the hadronic fragmentation functions of the Z0 boson is presented from a study of the inclusive hadron production with the DELPHI detector at LEP. These fragmentation functions were compared with the ones at lower energies, thus covering data in a large kinematic range: 196 less-than-or-equal-to Q2 less-than-or-equal-to 8312 GeV2 and x (= p(h)/E(beam)) > 0.08. A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: alpha(s)(M(Z)) = 0.118 +/- 0.005. The corresponding QCD scale for five quark flavours is: LAMBDA(MS)(5)BAR = 230 +/- 60 MeV.
Published: 1993

37. DETERMINATION OF ALPHA(S) FOR B-QUARKS AT THE Z(0) RESONANCE

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, David, P, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Ershaidat, N, Fassouliotis, D, Feindt, Michael, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grosse-Wiesmann, P, Grossetête, B, Gumenyuk, S A, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henkes, T, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Huet, K, Hulth, P O, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Królikowski, J, Kronkvist, I J, Krüner-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Maron, T, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Navarria, Francesco Luigi, Negri, P, Nicolaidou, R, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, O, Pierre, F, Pimenta, M, Pingot, O, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, S, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schulze, B, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zuberi, R, Zukanovich-Funchal, R, Zumerle, G, Zúñiga, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, CHARMED MESONS, Nuclear and High Energy Physics, Particle physics, HEAVY FLAVOR PRODUCTION, Electron–positron annihilation, High Energy Physics::Lattice, FRAGMENTATION FUNCTIONS, Flavour, Hadron, 01 natural sciences, Bottom quark, Nuclear physics, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Z DECAYS, Physics, Coupling constant, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, JET PRODUCTION-RATES, QCD, STRING MODEL, High Energy Physics::Experiment, Física nuclear, E+ E ANNIHILATION, Z0 RESONANCE, Particle Physics - Experiment, Lepton
Abstract: The strong coupling constant for b quarks has been determined, and its flavour independence, as predicted by QCD, investigated. The analysis involved events with lepton candidates selected from approximately 356 000 hadronic decays of the Z0, collected by the DELPHI detector at LEP in 1990 and 199 1. A method based on a direct comparison of the three-jet fraction in a b enriched sample, selected by requiring leptons with large momenta and transverse momenta, to that of the entire hadronic sample, illustrated the significant effect of the b quark mass on the multi-jet cross section, and verified the flavour independence of the strong coupling constant to an accuracy of +/- 6%. A second procedure based on a fit to the momentum and transverse momentum spectra of the lepton candidates in both two-jet and three (or more)-jet event samples simultaneously determined the b content in each, and, using second order QCD calculations, gave an absolute measurement of alpha(s) for b quarks of 0. 1 18 +/- 0.004 (stat.) +/- 0.003 (syst.) +/- 0.008 (scale). A comparison with a, for all quark flavours, as measured from the three-jet fraction in all hadronic events, further allowed the coupling strength for b quarks to be expressed in terms relative to that for udsc quarks, thereby cancelling certain common systematic uncertainties, and yielded alpha(s)b/alpha(s)udsc = 1.00 +/- 0.04 (stat.) +/- 0.03 (syst.).
Published: 1993

38. Investigation of the splitting of quark and gluon jets

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Brown, R, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Ghodbane, N, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sopczak, André, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vincent, P, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), UCL - SST/IRMP - Institut de recherche en mathématique et physique, and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quark, Particle physics, Physics and Astronomy (miscellaneous), Electron–positron annihilation, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Lattice, Nuclear Theory, 7. Clean energy, 01 natural sciences, Partícules (Física nuclear), Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, HADRONIZATION, Engineering (miscellaneous), Scaling, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Observable, QCD, Photon structure function, Hadronization, Gluon, MODEL, AVERAGE MULTIPLICITIES, FRAGMENTATION, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The splitting processes in identified quark and gluon jets are investigated using longitudinal and transverse observables. The jets are selected from symmetric three-jet events measured in Z decays L with the {\sc Delphi} detector in 1991-1994. Gluon jets are identified using heavy quark anti-tagging. Scaling violations in identified gluon jets are observed for the first time. The scale energy dependence of the gluon fragmentation function is found to be about two times larger than for the corresponding quark jets, consistent with the QCD expectation $C_A/C_F$. The primary splitting of gluons and quarks into subjets agrees with fragmentation models and, for specific regions of the jet resolution $y$, with NLLA calculations. The maximum of the ratio of the primary subjet splittings in quark and gluon jets is $2.77\pm0.11\pm0.10$. Due to non-perturbative effects, the data are below the expectation at small $y$. The transition from the perturbative to the non-perturbative domain appears at smaller $y$ for quark jets than for gluon jets. Combined with the observed behaviour of the higher rank splittings, this explains the relatively small multiplicity ratio between gluon and quark jets.

39. STUDY OF HARD SCATTERING PROCESSES IN MULTIHADRON PRODUCTION FROM GAMMA-GAMMA COLLISIONS AT LEP

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allport, P P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blume, M, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Budziak, A P, Bugge, L, Buran, T, Burmeister, H, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carroll, L, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grossetête, B, Gunnarson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henkes, T, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hill, T S, Hodgson, S D, Hofmokl, T, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krupinski, W, Kucewicz, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lévy, J M, Lieb, E H, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Novák, N, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Perevozchikov, V, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska-Bak, A, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Zúñiga, J, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: HADRONS, High Energy Physics::Phenomenology, LEP collider, DELPHI, multihadronic state, gamma-gamma collision, PHOTON STRUCTURE, Q2, CROSS-SECTION, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The production of multihadronic states in γγ collisions at LEP has been studied with the DELPHI detector. The analyzed data correspond to an integrated luminosity of about 32pb-1, collected in the LEP runs of 1990-1992. Minimum bias data and a sample of events with jets at high pT have been selected under the requirement that no scattered electron or positron is observed. The two data sets have been compared to Monte Carlo predictions. The non-perturbative contribution described by the vector meson dominance Model and direct {Mathematical expression} production from pointlike photons described by the quark parton model were found to be insufficient to reproduce the data. It has been necessary to include a third interaction component, which is due to perburbative hard scattering of the partonic constituents of the photon. Several parametrisations of the quark and gluon densities of the photon have been tested. The interplay with the cut in jet transverse momentum, which is necessary for the separation of the perturbative and non-perturbative regions, is discussed. The data favour parametrisations with rather soft partonic content of the photon. © 1994 Springer-Verlag.

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