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187 results on '"Durand, J.-D."'

11. Search for scalar fermions and long-lived scalar leptons at centre-of-mass energies of 130 GeV to 172 GeV

Author

Crawley, H. B., Firestone, A., Grahl, J., Lamsa, J. W., Lane, D. W., Kay, R. Mc, Meyer, W. T., Rosenberg, E. I., Gorn, L., Deghorain, A., De Brabandere, S., De Clercq, C., Bertrand, D., Herquet, P., Hoorelbeke, S., Huet, K., Lefebure, V., Tomaradze, A., Vander Velde, C., Van Lysebetten, A., Verbeure, F., Wickens, J. H., Contri, R., Anassontzis, E. G., Voulgaris, G., Kourkoumelis, C., Resvanis, L. K., Borgland, A. W., Stugu, B., Frodesen, A. G., Eigen, G., Benvenuti, A. C., Valenti, G., Paiano, S., Perrotta, A., Rovelli, T., Begalli, M., Pol, M. E., Mahon, J. R., Shellard, R. C., Chochula, P., Kubinec, P., Rosinsky, P., Janik, R., Beilliere, P., Dolbeau, J., Tristram, G., Brunet, J-M., Belokopytov, Yu., Davenport, M., Demaria, N., De Angelis, A., Camporesi, T., Carena, F., Cattai, A., Chabaud, V., Charpentier, Ph., Collins, P., Dijkstra, H., Augustinus, A., Baillon, P., Andreazza, A., Elsing, M., Fischer, P. -A., Foeth, H., Gaspar, C., Gavillet, Ph., Hahn, F., Haider, S., Herr, H., Jacobsson, R., Jalocha, P., Joram, C., Klein, H., Koratzinos, M., Kreuter, C., Liko, D., Marin, J. -C., Mariotti, C., Nulty, R. Mc, Moenig, K., Neufeld, N., Pape, L., Rebecchi, P., Reid, D., Treille, D., Tsirou, A., Ullaland, O., Barker, G., Wilkinson, G. R., Wolf, G., Amaldi, U., Bloch, D., Dracos, M., Cerruti, Ch., Engel, J-P., Gele, D., Gerber, J-P., Juillot, P., Nikolaenko, V., Orazi, G., Strub, R., Todorov, T., Todorova, S., Winter, M., Bozovic, I., Adzic, P., Fanourakis, G., Fassouliotis, D., Karafasoulis, K., Kokkinias, P., Krstic, J., Leisos, A., Loukas, D., Markou, A., Mastroyiannopoulos, N., Papageorgiou, K., Sampsonidis, D., Tzamarias, S., Zevgolatakos, E., Lokajicek, M., Ridky, J., Vrba, V., Caso, C., Crosetti, G., Fontanelli, F., Gracco, V., Monge, M. R., Morettini, P., Parodi, F., Petrolini, A., Piana, G., Sannino, M., Squarcia, S., Ledroit, F., Lopez-Fernandez, R., Mulet-Marquis, C., Naraghi, F., Nicolaidou, R., Sajot, G., Arnoud, Y., Berat, C., Czellar, S., Kiiskinen, A., Kurvinen, K., Lauhakangas, R., Nomokonov, V., Battaglia, M., Orava, R., Osterberg, K., Saarikko, H., Bilenky, M. S., Chelkov, G. A., Boyko, I., Khomenko, B. A., Khovanski, N. N., Kouznetsov, O., Krumstein, Z., Malychev, V., Zimin, N. I., Nikolenko, M., Olshevski, A. G., Pozdniakov, V., Pukhaeva, N., Sadovsky, A., Sedykh, Y., Sisakian, A. N., Tkatchev, L. G., Tyapkin, I. A., Vertogradov, L. S., Vodopyanov, A. S., Alekseev, G. D., Zimin, N. I., Bardin, D. Y., De Boer, W., Ehret, R., Feindt, M., Heising, S., Keranen, R., Knoblauch, D., Schneider, H., Schwickerath, U., Sopczak, A., Weiser, C., Ape, W-D., Kucewicz, W., Lesiak, T., Muryn, B., Palka, H., Polok, G., Witek, M., Zalewska, A., Bruckman, P., Bizouard, M-A., Borisov, G., Bouquet, B., Bourdarios, C., Ferrer-Ribas, E., Fulda-Quenzer, F., Gamblin, S., Jean-Marie, B., Lepeltier, V., Martinez-Rivero, C., Richard, F., Roudeau, P., Cosme, G., Stocchi, A., Bambade, P., Ratoff, P. N., Seager, P., Abreu, P., Andringa, S., Barao, F., Espirito Santo, M., Goncalves, P., Maio, A., Onofre, A., Paiva, R., Peralta, L., Pimenta, M., Spassov, T., Tome, B., Booth, P. S. L., Bowcock, T. J. V., Allport, P. P., Carroll, L., Galloni, A., Green, C., Houlden, M., Jackson, J. N., King, B., Marti i Garcia, S., Cubbin, M. Mc, Pherson, G. Mc, Normand, A., Parzefall, U., Sheridan, A., Cowell, J. -H., Da Silva, W., Baubillier, M., Fayot, J., Fichet, S., Kapusta, F., Moreau, X., Pain, R., Schwemling, Ph., Falk, E., Hedberg, V., Jarlskog, Ch., Jarlskog, G., Jonsson, P., Loerstad, B., Mjoernmark, U., Muresan, R., Nygren, A., Smirnova, O., Transtromer, G., Almehed, S., Antilogus, P., Barbier, R., Berggren, M., Bertini, D., Augustin, J. -E., Durand, J. -D., Duperrin, A., Chaussard, L., Chorowicz, V., Ghodbane, N., Katsanevas, S., Mirabito, L., Smadja, G., Delpierre, P., Tilquin, A., Ferrari, P., Matteuzzi, C., Meroni, C., Negri, P., Paganoni, M., Piotto, E., Pullia, A., Ragazzi, S., Redaelli, N. G., Tabarelli, T., Terranova, F., Tonazzo, A., Troncon, C., Vegni, G., Caccia, M., Calvi, M., Bonesini, M., Bonivento, W., Moeller, R., Nielsen, B. S., Damgaard, G., Mazik, J., Leitner, R., Chudoba, J., Boudinov, E., Blom, H. M., Holthuizen, D., Kjaer, N. J., Kluit, P., Mulders, M., Timmermans, J., Toet, D. Z., Van Apeldoorn, G. W., Van Dam, P., Van Eldik, J., Van Vulpen, I., Fokitis, E., Gazis, E. N., Katsoufis, E. C., Papadopoulou, Th. D., Dris, M., Rahmani, H., Myklebust, T., Read, A. L., Rohne, O., Skaali, T. B., Stapnes, S., Bugge, L., Buran, T., Cuevas Maestro, J., Harris, F. J., Hessing, T. L., Holt, P. J., Libby, J., Loken, J. G., Lyons, L., Morton, G., Myatt, G., Palacios, J., Parkes, C., Radojicic, D., Renton, P. B., Segar, A. M., Stevenson, K., Thomas, J., Vassilopoulos, N., Harris, F. J., Hessing, T. L., Holt, P. J., Libby, J., Loken, J. G., Lyons, L., Morton, G., Myatt, G., Palacios, J., Parkes, C., Radojicic, D., Renton, P. B., Segar, A. M., Stevenson, K., Thomas, J., Vassilopoulos, N., Checchia, P., Zumerle, G., De Min, A., Gasparini, U., Lippi, I., Margoni, M., Mazzucato, F., Mazzucato, M., Pegoraro, M., Ronchese, P., Simonetto, F., Ventura, L., Verlato, M., Franek, B., Gopal, G., Guy, J., Murray, W. J., Phillips, H. T., Sekulin, R., Smith, G. R., Venus, W., Adye, T., Crennell, D., Di Ciaccio, L., Di Diodato, A., Matthiae, G., Privitera, P., Verzi, V., Canale, V., Baroncelli, A., Branchini, P., Graziani, E., Passeri, A., Spiriti, E., Stanescu, C., Tortora, L., Cossutti, F., Boonekamp, M., Besancon, M., Gris, P., Jarry, P., Laugier, J-P., Lethuillier, M., Lutz, P., Ouraou, A., Pierre, F., Ruhlmann-Kleider, V., Sacquin, Y., Silvestre, R., Simard, L., Turluer, M-L., Vilanova, D., Camacho Rozas, A. J., Garcia, J., Gonzalez Caballero, I., Lopez, J. M., Marco, J., Marco, R., Matorras, F., Ruiz, A., Bosio, C., Ajinenko, I., Chliapnikov, P., Gouz, Yu., Konopliannikov, A., Kostioukhine, V., Lapin, V., Miagkov, A., Obraztsov, V., Smirnov, N., Tchikilev, O., Uvarov, V., Vlasov, E., Yushchenko, O., Erzen, B., Golob, B., Kriznic, E., Podobnik, T., Stanic, S., Zavrtanik, D., Ekspong, G., Holmgren, S-O., Hultqvist, K., Johansson, E. K., Leinonen, L., Lipniacka, A., Malmgren, T. G. M., Moa, T., Walck, C., Zucchelli, G. C., Åsman, B., Andersson, P., Bianchi, F., Bigi, M., Chierici, R., Gamba, D., Migliore, E., Rinaudo, G., Romero, A., Barbiellini, G., Delia Ricca, G., De Lotto, B., Petridou, C., Poropat, P., Scuri, F., Vallazza, E., Vitale, L., De Paula, L., Gandelman, M., Gaspar, M., Lopes, J. H., Marechal, B., Amato, S., Botner, O., Brenner, R. A., Ekelof, T., Ellert, M., Günther, M., Hallgren, A., Tegenfeldt, F., Cabrera, S., Castillo Gimenez, M. V., Ferrer, A., Fuster, J., Garcia, C., Gil, I., Hernandez, J. J., Higon, E., Martinez-Vidal, F., Navas, S., Salt, J., Colomer, M., Cortina, E., Alemany, R., Adam, W., Fruhwirth, R., Hrubec, J., Krammer, M., Leder, G., MacNaughton, J., Mandl, F., Neumeister, N., Pernicka, M., Rakoczy, D., Regler, M., Stampfer, D., Strauss, J., Doroba, K., Gokieli, R., Gorski, M., Grzelak, K., Nawrocki, K., Sosnowski, R., Szczekowski, M., Szeptycka, M., Zalewski, P., Becks, K-H., Brenke, T., Burgsmueller, T., Buschmann, P., Drees, J., Flagmeyer, U., Glege, F., Hahn, S., Hamacher, K., Heuser, J. -M., Klapp, O., Langefeld, P., Lenzen, G., Malek, A., Mueller, U., Muenich, K., Passon, O., Reinhardt, R., Schyns, M. A. E., Siebel, M., Sponholz, P., Ueberschaer, B., Wahlen, H., Wicke, D., and DELPHI Collaboration

Published
1999
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12. Search for pair-produced neutralinos in events with photons and missing energy from e+e- collisions at $$\sqrt s = 130 - 183$$ GeV

Author

Abreu, P., 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., Andreazza, A., Andringa, S., Antilogus, P., Apel, W. -D., Arnoud, Y., Åsman, B., Augustin, J. -E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D. Y., 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., 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., Burgsmueller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, A. J., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerruti, Ch., Chabaud, V., Charpentier, Ph., Chaussard, L., Checchia, P., Chelkov, G. A., Chierici, R., Chliapnikov, 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., Damgaard, G., Davenport, M., Da Silva, W., Deghorain, A., Delia Ricca, G., Delpierre, P., 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., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., 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., 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, Ph., 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., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Green, C., 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, Ch., 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., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kriznic, E., 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., 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., 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., Mazik, J., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Meroni, C., Meyer, W. T., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, 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., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nikolaenko, V., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Obraztsov, V., 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, Th. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., 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., 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., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, Ph., Schwickerath, U., Schyns, M. A. E., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Sekulin, R., Shellard, R. C., Sheridan, A., Siebel, M., Silvestre, R., Simard, L., Simonetto, F., Sisakian, A. N., Skaali, T. B., Smadja, G., Smirnova, O., Smith, G. R., Sokolov, A., Sopczak, A., Sosnowski, R., Spassov, T., 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, T., Tchikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., 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., 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., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., 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., 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., Zucchelli, G. C., Zumerle, G., and DELPHI Collaboration

Published
1999
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13. Search for charginos, neutralinos and gravitinos at LEP

Author

Abreu, P., 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., Åsman, B., Augustin, J -E., Augustinus, A., Baillon, P., Bambade, P., 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., Besancon, M., 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., 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., 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., Chabaud, V., Chapkin, M., Charpentier, Ph., Chaussard, L., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chhapnikov, P., 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., 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., Di Diodato, 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., Fenyuk, A., 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, Ph., Gazis, E. N., Gele, D., Gerber, J -P., Gokieli, R., Golob, B., Goncalves, P., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu., Gracco, V., Graziani, E., Green, C., Grefrath, A., Gris, P., Grosdidier, G., Grzelak, K., Gumenyuk, S., 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, Ch., Jarlskog, G., Jarry, P., Jean-Mariels, 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., Kokkinias, P., Koratzinos, M., Korcyl, K., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kronkvist, I., Krstic, J., Krumstein, Z., Krupinski, W., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Laktineh, I., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Lapin, V., 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., Matthiae, G., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Medbo, J., Meroni, C., Meyer, S., Meyer, W. T., Michelotto, M., Migliore, E., Mirabito, L., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, 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., 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, Th. 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, R. 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., 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., Siegrist, P., Silvestre, R., Simonetto, F., Sisakian, A. N., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Sokolov, A., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcial, 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, T., Tavernet, J. P., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, T., Toet, D. Z., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M -L., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Apeldoorn, G. W., Van Damlo, P., Van Doninck, W. K., Van Eldik, J., Van Lysebetten, 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., and DELPHI Collaboration

Published
1998
Full Text
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15. Study of rareb decays with the DELPHI detector at LEP

Author

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Andreazza, A., Andrieux, M. L., Antilogus, P., Apel, W-D., Arnoud, Y., Åsman, B., Augustin, J-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbi, M., Bardin, D. Y., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Baudot, J., Becks, K. -H., Begalli, M., Beilliere, P., Belokopytov, Yu., Benvenuti, A. C., Berggren, M., Bertini, D., Bertrand, D., Bianchi, F., Bigi, M., Bilenky, M. S., 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., Bruckman, P., Brunet, J-M., Bugge, L., Buran, T., Burgsmueller, 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, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Chabaud, V., Charpentier, Ph., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., 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., Crosetti, G., Maestro, J.Cuevas, Czellar, S., Dahl-Jensen, E., Dahm, J., Dalmagne, B., Dam, M., Damgaard, G., Dauncey, P. D., Davenport, M., Da Silva, W., Defoix, C., Deghorain, A., Della Ricca, G., Delpierre, P., 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., De Saint-Jean, C., Dijkstra, H., Di Ciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., 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., Santo, M.Espirito, Falk, E., Fassouliotis, D., Feindt, M., Fenyuk, A., Ferrer, A., Fichet, S., Filippas, T. A., Firestone, A., Fischer, P. -A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frenkiel, P., Fries, D. C., 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, Ph., Gazis, E. N., Gele, D., Gerber, J-P., Gibbs, M., Gokieli, R., Golob, B., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu., Gracco, V., Graziani, E., Grosdidier, G., Grzelak, K., Gumenyuk, S., Gunnarsson, P., Gunther, M., Guy, J., Hahn, F., Hahn, S., Hajduk, Z., Hallgren, A., Hamacher, K., Hao, W., Harris, F. J., Hedberg, V., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Higon, E., Hilke, H. J., Hill, T. S., 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, Ch., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kaiser, M., Kapusta, F., Karafasoulis, K., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khokhlov, Yu., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Kourkoumelis, C., Kouznetsov, O., Kramer, P. -H., Krammer, M., Kreuter, C., Kronkvist, I., Krumstein, Z., Krupinski, W., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Laktineh, I., Lamblot, S., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Last, I., Laugier, J-P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C. K., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Libby, J., Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopez, J. M., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Maehlum, G., Maio, A., Malychev, V., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J-C., Mariotti, C., Markou, A., Maron, T., Martinez-Rivero, C., Martinez-Vidal, F., Marti i Garcia, S., Masik, J., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Cubbin, M. Mc, Kay, R. Mc, Nulty, R. Mc, Medbo, J., Merk, M., Meroni, C., Meyer, S., Meyer, W. T., Miagkov, A., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nieuwenhuizen, M., Nikolaenko, V., Niss, P., Nomerotski, A., Normand, A., Novak, M., Oberschulte-Beckmann, W., Obraztsov, V., Olshevski, A. G., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Pages, P., Palka, H., Papadopoulou, Th. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Passeri, A., Pegoraro, M., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Petrovyck, M., Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Pindo, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Prest, M., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Reale, M., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Ripp, I., Romero, A., Roncagliolo, I., Ronchese, P., Roos, L., Rosenberg, E. I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann-Kleider, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sadovsky, A., Sahr, O., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schimmelpfennig, M., Schneider, H., Schwickerath, U., Schyns, M. A. E., Sciolla, G., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Seitz, A., Sekulin, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Sitar, B., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Sokolov, A., Solovianov, O., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stapnes, S., Stavitski, I., Stevenson, K., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tavernet, J. P., Tchikilev, O., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M-L., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Velde, C. Vander, Van Apeldoorn, G. W., Van Dam, P., Van Doninck, W. K., Van Eldik, J., 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., Weierstall, M., Weilhammer, P., Weiser, C., Wetherell, A. 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., Zach, F., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zito, M., Zontar, D., Zucchelli, G. C., Zumerle, G., and DELPHI Collaboration

Published
1996
Full Text
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16. Search for high massγγ resonances in $$q\bar q\gamma \gamma $$ at LEP Iat LEP I

Author

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Andreazza, A., Andrieux, M. L., Antilogus, P., Apel, W-D., Arnoud, Y., Åsman, B., Augustin, J-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbi, M., Bardin, D. Y., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Baudot, J., Becks, K-H., Begalli, M., Beilliere, P., Belokopytov, Yu., Benvenuti, A. C., Berggren, M., Bertini, D., Bertrand, D., Bianchi, F., Bigi, M., Bilenky, M. S., 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., Bruckman, P., Brunet, J-M., Bugge, L., Buran, T., Burgsmueller, 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, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Chabaud, V., Charpentier, Ph., Chaussard, L., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., 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., Crosetti, G., Maestro, J.Cuevas, Czellar, S., Dahl-Jensen, E., Dahm, J., Dalmagne, B., Dam, M., Damgaard, G., Dauncey, P. D., Davenport, M., Silva, W.Da, Defoix, C., Deghorain, A., Ricca, G.Della, Delpierre, P., 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., De Saint-Jean, C., Dijkstra, H., Di Ciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., 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., Santo, M.Espirito, Falk, E., Fassouliotis, D., Feindt, M., Fenyuk, A., Ferrer, A., Fichet, S., Filippas, T. A., Firestone, A., Fischer, P. -A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frenkiel, P., Fries, D. C., 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, Ph., Gazis, E. N., Gele, D., Gerber, J-P., Gibbs, M., Gokieli, R., Golob, B., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu., Gracco, V., Graziani, E., Grosdidier, G., Grzelak, K., Gumenyuk, S., Gunnarsson, P., Gunther, M., Guy, J., Hahn, F., Hahn, S., Hallgren, A., Hamacher, K., Hao, W., Harris, F. J., Hedberg, V., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Higon, E., Hilke, H. J., Hill, T. S., 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, Ch., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kaiser, M., Kapusta, F., Karafasoulis, K., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khokhlov, Yu., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Kourkoumelis, C., Kouznetsov, O., Kramer, P. -H., 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., Last, I., Laugier, J-P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C. K., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Libby, J., Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopez, J. M., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Maehlum, G., 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., Maron, T., Martinez-Rivero, C., Martinez-Vidal, F., Marti i Garcia, S., Masik, J., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Cubbin, M.Mc, Kay, R.Mc, Nulty, R.Mc, Medbo, J., Merk, M., Meroni, C., Meyer, S., Meyer, W. T., Miagkov, A., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nieuwenhuizen, M., Nikolaenko, V., Niss, P., Nomerotski, A., Normand, A., Novak, M., Oberschulte-Beckmann, W., Obraztsov, V., Olshevski, A. G., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Pages, P., Pain, R., Palka, H., Papadopoulou, Th. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Passeri, A., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Petrovyck, M., Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Prest, M., 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., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Ripp, I., Romero, A., Roncagliolo, I., Ronchese, P., Roos, L., Rosenberg, E. I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sahr, O., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schimmelpfennig, 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., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Sitar, B., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Solovianov, O., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stapnes, S., Stavitski, I., Stevenson, K., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tavernet, J. P., Tchikilev, O., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M. -L., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Velde, C.Vander, Van Apeldoorn, G. W., Van Dam, P., Van Eldik, J., 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., Weierstall, M., Weilhammer, P., Weiser, C., Wetherell, A. 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., Zach, F., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zito, M., Zontar, D., Zucchelli, G. C., Zumerle, G., and DELPHI Collaboration

Published
1996
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19. Measurement of |Vcs| 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., Andreazza, A., Antilogus, P., Apel, W-D, Arnoud, Y., Åsman, B., Augustin, J-E, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D. Y., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K-H, Begalli, M., Beilliere, P., Belokopytov, Y., 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., 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., 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., Chliapnikov, 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., Demaria, N., Angelis, A., Boer, W., Brabandere, S., Clercq, C., Lotto, B., Min, A., 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., 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., 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, Y., 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., 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., Kriznic, E., Krstic, J., Krumstein, Z., Kubinec, P., Kucewicz, W., Kurvinen, K., Lamsa, J. W., Lanceri, L., 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., 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., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Meroni, C., Miagkov, A., 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., Nemecek, S., 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., Olshevski, A. G., Onofre, A., Orava, R., Orazi, G., Osterberg, 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., Alessandro Petrolini, Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Piotto, E., 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., Rames, J., 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., 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., Shellard, R. C., Sheridan, A., Silvestre, R., Simard, L., Simonetto, F., Sisakian, A. N., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassov, T., 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, T., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Tome, B., 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., Apeldoorn, G. W., Dam, P., Eldik, J., Lysebetten, A., Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., 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., Weiser, C., Wetherell, A. M., Wicke, D., Wickens, J. H., Wilkinson, G. R., Winter, M., Witek, M., Wlodek, T., Wolf, G., Yi, J., Yushchenko, Y., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zucchelli, G. C., Zumerle, G., Delphi (IHEF, IoP, FNWI), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, and UCL - SST/IRMP - Institut de recherche en mathématique et physique

Subjects
Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, High Energy Physics::Phenomenology, 01 natural sciences, LARGE ELECTRON POSITRON COLLIDER, Nuclear physics, Matrix (mathematics), 0103 physical sciences, PARTICLE PHYSICS, DELPHI, Computer Science::Networking and Internet Architecture, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment, Boson
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
2016

21. FINAL REPORT OF THE COMMITTEE ON TAXATION OF TRANSPORTATION

Author

Mitchell, George W., Beckett, R. C., Boot, Harry E., Dearing, Charles L., Durand, J. D., Evans, James Clarence, Hamilton, P. B., Heller, Walter W., Locke, Gordon C., Messner, Otto F., Netzer, Dick, Sharkey, William A., and Zettel, Richard M.

Published
1951

22. Insight into the origin of endemic Mediterranean ichthyofauna: phylogeography of Chondrostoma genus (Teleostei, Cyprinidae)

Author

Durand, J.-D., Bianko, P. G., Laroche, J., and Gilles, A.

Subjects
Phylogeny -- Analysis, Mitochondria -- Genetic aspects, Nucleotides -- Genetic aspects, Cytochrome b -- Genetic aspects, Ichthyological research -- Research, Biogeography -- Research, Heredity -- Genetic aspects, Heredity -- Research, Biological sciences
Abstract

Research has been conducted on Chondrostoma species endemic to various Mediterranean rivers. The authors have established phylogenetic relationships among these species via the use of nucleotide sequence analyses of the cytochrome b mitochondrial gene.

Published
2003

23. Challenging the challenge: handling data in the Gigabit/s range

Author

Anticic, T., Baud, J. P., Carena, F., Carena, W., Collignon, M., Collin, F., Couturier, B., Divia`, R., Durand, J. D., Favretto, D., Jouanigot, J. M., Marin, J. C., Mohanty, A. K., Panzer-Steidel, B., Polichtchouk, B., Rademakers, F., Renshall, H., Schossmaier, K., Schulz, M., Vyvre, P. Vande, and Vascotto, A.

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The ALICE experiment at CERN will propose unprecedented requirements for event building and data recording. New technologies will be adopted as well as ad-hoc frameworks, from the acquisition of experimental data up to the transfer onto permanent media and its later access. These issues justify a careful, in-depth planning and preparation. The ALICE Data Challenge is a very important step of this development process where simulated detector data is moved from dummy data sources up to the recording media using processing elements and data-paths as realistic as possible. We will review herein the current status of past, present and future ALICE Data Challenges, with particular reference to the sessions held in 2002 when - for the first time - streams worth one week of ALICE data were recorded onto tape media at sustained rates exceeding 300 MB/s., Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 9 pages, PDF. PSN MOGT007

Published
2003

24. The ALICE Data Challenges

Author

Baud, J P, Carena, W, Carminati, F, Collignon, M, Collin, F, Divià, R, Durand, J D, Jarp, S, Jouanigot, J M, Panzer, B, Rademakers, F, Saiz, P, Schossmaier, K, Van de Vyvre, P, and Vascotto, Alessandro

Subjects
Detectors and Experimental Techniques
Abstract

Since 1998, the ALICE experiment and the CERN/IT division have jointly executed several large-scale high throughput distributed computing exercises: the ALICE data challenges. The goals of these regular exercises are to test hardware and software components of the data acquisition and computing systems in realistic conditions and to execute an early integration of the overall ALICE computing infrastructure. This paper reports on the third ALICE Data Challenge (ADC III) that has been performed at CERN from January to March 2001. The data used during the ADC III are simulated physics raw data of the ALICE TPC, produced with the ALICE simulation program AliRoot. The data acquisition was based on the ALICE online framework called the ALICE Data Acquisition Test Environment (DATE) system. The data after event building were then formatted with the ROOT I/O package and a data catalogue based on MySQL was established. The Mass Storage System used during ADC III is CASTOR. Different software tools have been used to monitor the performances. DATE has demonstrated performances of more than 500 MByte/s. An aggregate data throughput of 85 MByte/s was sustained in CASTOR over several days. The total collected data amounts to 100 TBytes in 100,000 files.

Published
2001

25. Study of dimuon production in photon-photon collisions and measurement of QED photon structure functions at LEP

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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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. Charpentier, P. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. 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. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, 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. 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. Gouz, Y. 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. 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. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. 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. 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. Pozdniakov, 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. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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, L. Venus, W. Verbeure, F. Verdier, P. 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.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, Ph. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Experiment
Abstract

Muon pair production in the process e+e- → e+e- μ+μ- is studied using the data taken at LEP1 (√s ≃ mz) with the DELPHI detector during the years 1992-1995. The corresponding integrated luminosity is 138.5 pb-1. The QED predictions have been tested over the whole Q2 range accessible at LEP1 (from several GeV2/c4 to several hundred GeV2/c4) by comparing experimental distributions with distributions resulting from Monte Carlo simulations using various generators. Selected events are used to extract the leptonic photon structure function Fγ2. Azimuthal correlations are used to obtain information on additional structure functions, FγA and FγB, which originate from interference terms of the scattering amplitudes. The measured ratios FγA/Fγ2 and FγB/Fγ2 are significantly different from zero and consistent with QED predictions.

Published
2001

26. Measurement of the B̄ → D(*)πℓν̄ℓ branching fraction

Author

Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, 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, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K-H, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, M-A, Bloch, D, Blom, HM, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, 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, Gimenez, MC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Ricca, GD, Delpierre, P, 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, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, J-P, Santo, ME, Fanourakis, G, 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, AG, 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, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, 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, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, J-M, Higon, E, Holmgren, S-O, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, 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, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, 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, Mc Cubbin, M, Mc Kay, RM, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, 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, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, 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, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M-L, Tyapkin, LA, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, and Zumerle, G

Abstract

A study of b semileptonic decays into D, Dπ± and D*π± final states is presented. The D0, D+ and D*+ mesons are exclusively reconstructed in Z decay data recorded from 1992 to 1995 in the DELPHI experiment at LEP. The overall branching fractions are measured to be: BR(b→ D0ℓ-νℓX) = (7.04 + 0.34 (stat) + 0.36 (syst.exp) + 0.17 (BRD))%, BR(b→ D+ℓ-νℓX) = (2.72 + 0.19 (stat) + 0.16 (syst.exp) + 0.18 (BRD))%, BR(b→ D*+ℓ-νℓX) = (2.75 + 0.17 (stat) + 0.13 (syst.exp) + 0.09 (BRD))%, where the D0 and D+ results include also contributions from D*0 and D*+ decays. A fit to the distribution of the π± impact parameter to the primary interaction vertex provides a measurement of the b semileptonic branching fractions into the D0π±X, D+π±X and D*+π±X final states. Assuming that single pion decay modes of B mesons dominate, the partial rates for B→Dπℓ-νℓ and B→D*πℓ-νℓ have been obtained, corresponding to a total branching fraction: BR(B→Dπℓ-νℓ) +BR(B→D*πℓ-νℓ) = (3.40 + 0.52 (stat) + 0.32 (syst))%. This result agrees well with the observed difference between the total B semileptonic branching fraction and the sum of the B→Dℓ-νℓ and B→D*ℓ-νℓ branching fractions. © 2000 Elsevier Science B.V.

Published
2000

27. Search for charginos in $e^+ e^-$ interactions 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., 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., 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., 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., 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., 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., 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., Segar, A M., Seibert, N., Sekulin, R., 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., 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., 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, 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), 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, 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), 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), 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), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb^{-1} recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c^2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (\mu,M_2) MSSM domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.0 GeV/c^2 for tan(beta) \geq 1., Comment: 22 pages, 8 figures

Published
2000
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28. Charged and identified particles in the hadronic decay of W bosons and in e+e- → qq̄ from 130 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. Anjos, N. Antilogus, P. Apel, W.-D. Arnoud, Y. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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, Ph. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. 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. Ekelof, 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. 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. Gouz, Y. 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, Ch. 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. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, 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. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Metreveli, Z. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. Olshevski, 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. Pozdniakov, 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, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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.S. 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.

Subjects
High Energy Physics::Experiment
Abstract

Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV. The possible effects of interconnection between the hadronic decays of two Ws are not observed. Measurements of the average multiplicity for charged and identified particles in qq̄ and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented. The results on the average multiplicity of identified particles and on the position ξ* of the maximum of the ξp = -log(2p/√s) distribution are compared with predictions of JETSET and MLLA calculations.

Published
2000

29. Study of bs 0-b̄̄s 0 oscillations and bs 0 lifetimes using hadronic decays of bs 0 mesons

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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. Bracko, M. Branchini, P. Brenke, T. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buran, T. Burgsmueller, 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. Charpentier, P. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. Deghorain, A. Della Ricca, G. Delpierre, P. 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. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. 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. 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. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. 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. 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. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. 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. 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. 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. 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. Pozdniakov, 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. 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. Royon, C. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. Van Apeldoorn, G.W. 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, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. 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. Zucchelli, G.C. Zumerle, G. The DELPHI Collaboration

Abstract

Oscillations of Bs mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: (Formula Presented),where the D decays are completely reconstructed. In addition,Bs 0-B̄̄s 0 oscillations have been studied in events with an exclusivelyreconstructed Ds accompanied in the same hemisphere bya high momentum hadron of opposite charge. Combining the two analyses,a limit on the mass difference between the physical Bs states has been obtained: ∆mB0s > 4.0 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 3.2 ps−1. Using the latter sample of events,the Bs lifetime has been measured and an upper limit on the decay width difference between the two physical Bs states has been obtained: (Formula Presented) The combination of these results with those obtained using Dsℓ∓ sample gives: ∆mB0s > 4.9 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 8.7 ps−1. © Springer-Verlag 2000.

Published
2000

30. Charged and Identified Particles in the Hadronic Decay of W Bosons and in $e^{+} e^{-} \to q\overline{q}$ from 130 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., Anjos, N., Antilogus, P., Apel, W-D., Arnoud, Y., Asman, B., Augustin, J-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D.Y., 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., Bilenky, 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., M.Castillo Gimenez, V., Cattai, A., Cavallo, F.R., Chabaud, V., Chapkin, M., Charpentier, Ph., Checchia, P., Chelkov, G.A., Chierici, R., Chliapnikov, 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., 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., Ekelof, 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., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, Ph., 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., Gouz, 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, Ch., 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., Khovanski, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, 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., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Cubbin, M.Mc, Kay, R.Mc, Nulty, R.Mc, Pherson, G.Mc, Meroni, C., Metreveli, Z., Meyer, W.T., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjoernmark, U., Moa, T., Moch, M., Moeller, 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., Olshevski, 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, Th.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., Pozdniakov, 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, Ch., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, Ph., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Segar, A.M., Seibert, N., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassov, T., 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, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., 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.S., 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., Zimine, N.I., Zintchenko, A., Zoller, Ph., 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
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at centre-of-mass energies from 183 to around 200 GeV.The possible effects of interconnection betweenthe hadronic decays of two Ws are not observed.Measurements of the average multiplicity for charged and identified particles in q$\bar{\mathrm q}$ and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented.The results on the average multiplicity of identified particlesand on the position $\xi^*$ of the maximum of the maximum of$\xi_p = -\mathrm{log} (\frac{2p}{\sqrt{s}})$distribution are compared with predictionsof JETSET and MLLA calculations. Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV. The possible effects of interconnection between the hadronic decays of two Ws are not observed. Measurements of the average multiplicity for charged and identified particles in q qbar and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented. The results on the average multiplicity of identified particles and on the position xi^* of the maximum of the xi_p = -log(2p/sqrt(s)) distribution are compared with predictions of JETSET and MLLA calculations.

Published
2000
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31. A precise measurement of the τ polarisation 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, 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, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. 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. Charpentier, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. 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. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. 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. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. 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, Ch. 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. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krstic, J. Krumstein, 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. 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. 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. Polycarpo, E. Poropat, P. Pozdniakov, 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, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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. 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, L. Venus, W. 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.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, Ph. Zucchelli, G.C. Zumerle, G.

Abstract

The τ polarisation has been studied with the e+e- → τ+τ- data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the Z resonance firstly through the exclusive decay channels evv̄, μvvμ, πv, ρv, and a1v and secondly with an inclusive hadronic analysis which benefits from a higher efficiency and a better systematic precision. The results have been combined with those previously published on 1990 to 1992 DELPHI data, to produce results which reflect the full LEP-1 statistics. The fit of the τ polarisation dependence on the production angle yielded the polarisation parameters Aτ = 0.1359 ± 0.0096 and Ae = 0.1382 ± 0.0116. From these results the ratio of the vector and axial-vector effective couplings v̄τ/āτ = 0.0683 ± 0.0048 and v̄e/āe = 0.0694 ± 0.0058 have been derived, compatible with e-τ universality. With the assumption of lepton universality, the ratio of vector to axial-vector effective couplings for leptons v̄ι/āι = 0.0687 ± 0.0037 was obtained, implying a value of the effective weak mixing angle sin2 θlepteff= 0.23282 ± 0.00092.

Published
2000

32. Cross-sections and leptonic forward-backward asymmetries from the Z0 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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Beilliere, P. Belokopytov, Y. 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. 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. Branchini, P. Brenke, T. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buran, T. Burgsmueller, T. Buschmann, P. Cabrera, S. Caccia, M. Calvi, M. CamachoRozas, A.J. Camporesi, T. Canale, V. Canepa, M. Carena, F. Carroll, L. Caso, C. CastilloGimenez, M.V. Cattai, A. Cavallo, F.R. Cerruti, Ch. Chabaud, V. Chapkin, M. Charpentier, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chen, M. Chierici, R. Chliapnikov, 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. CuevasMaestro, J. Czellar, S. Dalmagne, B. Damgaard, G. Davenport, M. DaSilva, W. Deghorain, A. DellaRicca, G. Delpierre, P. Demaria, N. DeAngelis, A. DeBoer, W. DeBrabandere, S. DeClercq, C. DeLotto, B. DeMin, A. DePaula, L. Dijkstra, H. DiCiaccio, L. DiDiodato, 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. EspiritoSanto, M. Falk, E. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrer, A. 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. Gandelman, M. Garcia, C. Garcia, J. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerber, J.-P. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Goncalves, P. GonzalezCaballero, I. Gopal, G. Gorn, L. Gorski, M. Gouz, Y. 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, Ch. 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. Konopliannikov, A. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kreuter, C. Kriznic, E. Krstic, J. Krumstein, 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. MartiiGarcia, S. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazik, 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. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, 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. 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. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, Ph. Schwickerath, U. Schyns, M.A.E. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Sheridan, A. Silvestre, R. Simard, L. Simonetto, F. Sisakian, A.N. Skaali, T.B. Smadja, G. Smirnova, O. Smith, G.R. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Tegenfeldt, F. Terranova, F. Thomas, J. Tilquin, A. Timmermans, J. Tkatchev, L.G. Todorov, T. Todorova, S. Toet, D.Z. Tomaradze, A. 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. VanderVelde, C. VanApeldoorn, G.W. VanDam, P. VanDoninck, W.K. VanEldik, J. VanLysebetten, A. VanVulpen, I. Vassilopoulos, N. Vegni, G. Ventura, L. Venus, W. 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. 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.

Subjects
High Energy Physics::Experiment
Abstract

During 1993 and 1995 LEP was run at 3 energies near the Z0 peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z0 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: MZ = 91.1863 ± 0.0028 GeV ΓZ = 2.4876 ± 0.0041 GeV σ0 = 41.578 ± 0.069 nb R1 = 20.730 ± 0.060 AFB0 = 0.0187 ± 0.0019. These values are significantly more precise than those previously published. The results are interpreted in terms of the Standard Model.

Published
2000

33. Measurements of the Z partial decay width into cc̄ and multiplicity of charm quarks per b decay

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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. Burgsmueller, 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. Charpentier, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. da Silva, W. Deghorain, A. Della Ricca, G. Delpierre, P. 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. 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. 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gorski, M. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Green, C. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. 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. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. 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. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Kriznic, E. Krstic, P. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. 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. 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. Nemecek, S. Neufeld, N. Neumeister, N. Nicolaidou, R. Nielsen, B.S. Nikolenko, M. Nomokonov, V. Normand, A. Nygren, A. Obraztsov, V. 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. Passon, O. 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. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. 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. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, Ph. Schwering, B. Schwickerath, U. Schyns, M.A.E. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Sheridan, A. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Tchikilev, O. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. 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 Remortel, N. van Vulpen, I. Vassilopoulos, N. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. 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. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The partial decay width Rc of the Z into cc̄ quark pair and the number of charm quarks nc per b decay are measured with the DELPHI detector at LEP 1. Particle identification provides clear D0, D+, D+s and Λ+c signatures. The charm hadron production rate is measured in each channel by a fit to the scaled energy, impact parameter information and the invariant mass spectrum. Two measurements of Rc are presented, from the D*+ production rate and from the overall charm counting, including strange charm baryon production, in cc̄ events. The multiplicity nc, which includes hidden cc̄ and strange charm baryon production, is inferred from the charm counting in bb̄ events. The final results are Rc = 0.1665 ± 0.0095 and nc-= 1.166 ± 0.086.

Published
2000

34. Addendum to: 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, 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, 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, Dalmau, J, Davenport, M, Da Silva, W, 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, 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, Khokhlov, Yu A, 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, 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 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, 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 L, 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, Ripp-Baudot, I, 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, 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, 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 R, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O P, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zinchenko, A I, Zoller, P, Zucchelli, G C, and Zumerle, G

Subjects
Particle Physics - Experiment
Abstract

A more general MSSM parameter scan is described

Published
2000

35. Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays

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., 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., 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., 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., 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 C., Fanourakis, G K., 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., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., 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., 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., Moeller, 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., Oesterberg, 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., Smirnov, N., Smirnova, O., Smith, G R., Sokolov, 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., 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., 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), 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, 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), 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), 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
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract

The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$ is a meson, and that of \ppb adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank \ppb pairs, without requiring `string-ordered' \pmpb configurations. An upper limit of 15\% at 90\% confidence is determined for the \pmpb contribution. The rapidity-rank structure of p p ̄ pairs is used to analyze the mechanism of baryon production in hadronic Z 0 decay. The relative occurrence of the rapidity-ordered configuration p M p ̄ , where M is a meson, and that of p p ̄ adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank p p ̄ pairs, without requiring `string-ordered' p M p ̄ configurations. An upper limit of 15% at 90% confidence is determined for the p M p ̄ contribution. The rapidity-rank structure of p pbar pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuration p M pbar, where M is a meson, and that of p pbar adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank p pbar pairs, without requiring `string-ordered' p M pbar configurations. An upper limit of 15% at 90% confidence is determined for the p M pbar contribution.

Published
2000
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36. Search for supersymmetry with R-parity violating LLĒ couplings at √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, U. 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, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. Burgsmueller, 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. Charpentier, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. da Silva, W. Deghorain, A. Della Ricca, G. Delpierre, P. 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. 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. 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gorski, M. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Green, C. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. 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. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. 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. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krstic, P. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Langefeld, P. 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. 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. 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. Nemecek, S. Neufeld, N. Neumeister, N. Nicolaidou, R. Nielsen, B.S. Nikolenko, M. Nomokonov, V. Normand, A. Nygren, A. Obraztsov, V. 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. Passon, O. 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. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. 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. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, Ph. Schwering, B. Schwickerath, U. Schyns, M.A.E. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Sheridan, A. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. 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. Vassilopoulos, N. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. 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. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

Searches for pair production of supersymmctric particles in e+e- collision at centre-of-mass energy of 183 GeV have been performed on DELPHI data under the assumption that R-parity is not conserved. Only one R-parity violating coupling of λ type, which couples the sleptous to the leptons (LLĒ erm), is considered to be dominant at a time. Since in models with R-parity violation any supersymmetic particlr can be the lightest one, searches for charginos, neutralinos, sleptons and squarks have been perfomed both for direct R-parity violating decays and for indirect cascade decays. Morever, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The present study of supersymmetric particle pair production is used to exclude domains of the Minimal Supersymmetric Standard Model parameter space previously explored under the assumption of R-parity conservation.

Published
2000

37. Searches for neutral Higgs bosons in e+e- collisions around √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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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. CastilloGimenez, M.V. Cattai, A. Cavallo, F.R. Chabaud, V. Chapkin, M. Charpentier, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. CuevasMaestro, J. Czellar, S. Dalmau, J. Davenport, M. DaSilva, W. DellaRicca, G. Delpierre, P. Demaria, N. DeAngelis, A. DeBoer, W. DeClercq, C. DeLotto, B. DeMin, A. DePaula, L. Dijkstra, H. DiCiaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. EspiritoSanto, 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. GonzalezCaballero, I. Gopal, G. Gorn, L. Gouz, Y. 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, Ch. 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. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, 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. MartiiGarcia, 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. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. 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. 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. Pozdniakov, 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, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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. VanderVelde, C. VanDam, P. VandenBoeck, W. VanDoninck, W.K. VanEldik, J. VanLysebetten, A. vanRemortel, N. VanVulpen, I. Vegni, G. Ventura, L. Venus, W. 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.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, Ph. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Phenomenology, 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/c2) and on the lightest neutral scalar (82.6 GeV/c2) and neutral pseudoscalar (84.1 GeV/c2) 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.

Published
2000

38. Measurement of the B0s lifetime and study of B0s-B0s oscillations using Dsℓ events

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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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. Brenke, T. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buran, T. Burgsmueller, T. Buschbeck, B. Buschmann, P. Cabrera, S. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. CastilloGimenez, M.V. Cattai, A. Cavallo, F.R. Chabaud, V. Chapkin, M. Charpentier, P. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. CuevasMaestro, J. Czellar, S. Davenport, M. DaSilva, W. Deghorain, A. DellaRicca, G. Delpierre, P. Demaria, N. DeAngelis, A. DeBoer, W. DeClercq, C. DeLotto, B. DeMin, A. DePaula, L. Dijkstra, H. DiCiaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. EspiritoSanto, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, 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. 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. GonzalezCaballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. 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. 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. Jonsson, P. Joram, C. Juillot, P. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krstic, J. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Langefeld, P. 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. 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. MartiiGarcia, 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. Moeller, 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. Nemecek, S. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. 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. 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. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. 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. Royon, C. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. VanApeldoorn, G.W. VanDam, P. VanDoninck, W.K. VanEldik, J. VanLysebetten, A. VanRemortel, N. VanVulpen, I. Vassilopoulos, N. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. 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. Zaitsev, A. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zucchelli, G.C. Zumerle, G.

Abstract

Lifetime and oscillations of B0s mesons have been studied in events with a large transverse momentum lepton and a Ds of opposite electric charge in the same hemisphere, selected from about, 3.6 million hadronic Z0 decays accumulated by DELPHI between 1992 and 1995. The B0s lifetime and the fractional width difference between the two physical B0s states have been found to be: τB0s = (1.42+0.14-0.13(stat.) ± 0.03(syst.)) ps ΔΓB0s/ΓB0s < 0.46 at the 95% C.L. In the latter result it has been assumed that τB0s = τB0d. Using the same sample, a limit on the mass difference between the physical B0s states has been set: ΔmB0s > 7.4 ps-1 at the 95% C.L. with a corresponding sensitivity equal to 8.1 ps-1.

Published
2000

39. Search for supersymmetric particles in scenarios with a gravitino LSP and stau NLSP

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, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bilenky, 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. Chliapnikov, 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. 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. Ekelof, 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. 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. Gouz, Y. 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, Y. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. Olshevski, 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. Pozdniakov, 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. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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.S. 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.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle is the gravitino. It was assumed that the stau is the next-to-ligntest supersymmetric particle. Data collected with the DELPHI detector at a centre-of-mass energy near 189 GeV were analysed combining the methods developed in previous searches at lower energies. No evidence for the production of these supersymmetric particles was found. Hence, limits were derived at 95% confidence level.

Published
2000

40. 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
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41. Measurement of the strange quark forward-backward asymmetry around the Z° 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, U. 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, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. 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, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. Deghorain, A. Della Ricca, G. Delpierre, P. 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. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. 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. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Gris, P. Grosdidier, G. Grzelak, K. Gunther Axelsson, M. 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, Ch. 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. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. 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. 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. 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. 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. Pozdniakov, 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. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Sokolov, A. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. 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, L. Venus, W. 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.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zaitsev, A. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear 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

42. 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
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43. 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
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44. Photon events with missing energy at √s = 183 to 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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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. Charpentier, Ph. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. 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. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Falk, E. Fanourakis, G. 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. 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. 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, Ch. 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. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. 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. 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. 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. 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. Pozdniakov, 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, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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. 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.S. 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, Ph. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Experiment, Nuclear Experiment
Abstract

The production of single photons has been studied in the reaction e+e- → γ+invisible particles at centre-of-mass energies of 183 GeV and 189 GeV. A previously published analysis of events with multiphoton final states accompanied by missing energy has been updated with 189 GeV data. The data were collected with the DELPHI detector and correspond to integrated luminosities of about 51 pb-1 and 158 pb-1 at the two energies. The number of light neutrino families is measured to be 2.84 ± 0.15(stat) ± 0.14(syst). The absence of an excess of events beyond that expected from Standard Model processes is used to set limits on new physics as described by supersymmetric and composite models. A limit on the gravitational scale is also determined.

Published
2000

45. Measurement of the $B^0_s$ Lifetime and Study of $B^0_s - \overline{B^0_s}$ Oscillations using $D_{s}l$ Events

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., Brenke, T., Brenner, R A., Bruckman, P., Brunet, J M., Bugge, L., Buran, T., Burgsmuller, 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., Deghorain, A., 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., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito-Santo, M C., Fanourakis, G K., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., 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., 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., Grimm, H J., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., 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., 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., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E C., Keranen, R., Kernel, G., Kersevan, B P., Khomenko, B A., Khovanskii, N N., Kiiskinen, A., King, B J., Kinvig, A., Kjaer, N J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Koratzinos, M., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krstic, J., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J W., Lane, D W., Langefeld, P., 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., 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., 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., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M R., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, 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., Nemecek, S., 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., 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., 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., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, Henri, Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A M., 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., 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., 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., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Tsirou, A., 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., 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., Vollmer, C., 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., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N I., Zintchenko, A., 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, 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), 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), 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
cognition, knowledge philosophy, language, epistemology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], reasoning, High Energy Physics::Experiment, perception, Particle Physics - Experiment
Abstract

Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge>the same hemisphere, selected from about 3.6 million hadronic $\Zz$decays accumulated by DELPHI between 1992 and 1995. \\The $\Bs$ lifetime and the fractional width difference between the two physical> Lifetime and oscillations of B0s mesons have been studied in events with a large transverse momentum lepton and a Ds of opposite electric charge in the same hemisphere, selected from about 3.6 million hadronic Z0 decays accumulated by DELPHI between 1992 and 1995. The B0s lifetime and the fractional width difference between the two physical B0s states have been found to be: \tau_(B0s) = (1.42^{+0.14}_{-0.13}(stat.) +/- 0.03(syst.)) ps \Delta\Gamma(B0s)/\Gamma(B0s) < 0.46 at the 95% C.L. In the latter result it has been assumed that \tau_(B0s)=\tau_(B0d). Using the same sample, a limit on the mass difference between the physical B0s states has been set: Delta(m_B0s) > 7.4 ps^{-1} at the 95% C.L. with a corresponding sensitivity equal to 8.1 ps^{-1}.

Published
2000
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46. Determination of P(c → D*+) and BR(c → 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, U. 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, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. Burgsmueller, 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. Charpentier, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. da Silva, W. Deghorain, A. Della Ricca, G. Delpierre, P. 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. 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. 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gorski, M. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Green, C. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. 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. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. 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. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krstic, J. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Langefeld, P. 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. 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mjoernmark, U. Moa, T. Moch, M. Moeller, 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. Nemecek, S. Neufeld, N. Neumeister, N. Nicolaidou, R. Nielsen, B.S. Nikolenko, M. Nomokonov, V. Normand, A. Nygren, A. Obraztsov, V. 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. Passon, O. 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. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmanr, H. 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. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, Ph. Schwering, B. Schwickerath, U. Schyns, M.A.E. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Sheridan, A. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. 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. Vassilopoulos, N. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. 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. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zucchelli, G.C. Zumerle, G.

Abstract

The probability P(c → D*+) that a charm quark fragments into a D*+ meson and the c → l+ semileptonic branching fraction were measured in Z0 decay into cc̄ events. From the analysis of 3.5 Million Z0 events collected from 1992 to 1995, a sample of charm meson decays with 81% cc̄ purity was selected. The product of the c → D*+ fragmentation probability times the D*+ → D0π+ branching fraction was measured to be: P(c → D*+) · BR(D*+ → D0π+) = 0.174 ± 0.010(stat) ± 0.004(syst). Using the world averaged value for BR(D*+ → D0π+), the fragmentation probability is inferred: P(c → D*+) = 0.255 ± 0.015(stat) ± 0.006(syst) ± 0.005(syst.BR). From the same sample, 1828 ± 51 identified leptons in the opposite hemisphere were selected. From this sample, the charm semileptonic branching fraction was measured to be: BR(c → l+) = 0.0958 ± 0.0042(stat) ± 0.0028(syst).

Published
2000

47. Measurement of the gluon fragmentation function and a comparison of the scaling violation in gluon and quark 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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertini, D. Bertrand, D. Besancon, M. 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. 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, Ph. Chaussard, L. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. 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. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. 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. Gouz, Y. 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, Ch. 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. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. 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. 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. 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. 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. 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. 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. Pozdniakov, 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, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Sokolov, A. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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, L. Venus, W. 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.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zaitsev, A. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The fragmentation functions of quarks and gluons are measured in Various three-jet topologies in Z decays from the full data set collected with the DELPHI detector at the Z resonance between 1992 and 1995. The results at different values of transverse momentum-like scales are compared. A parameterization of the quark and gluon fragmentation functions at a fixed reference scale is given. The quark and gluon fragmentation functions show the predicted pattern of scaling violations. The scaling violation for quark jets as a function of a transverse momentum-like scale is in a good agreement with that observed in lower energy e(+)e(-) annihilation experiments. For gluon jets it appears to be significantly stronger. The scale dependences of the gluon and quark fragmentation functions agree with the prediction of the DGLAP evolution equations from which the colour factor ratio C-A/C-F is measured to be: C-A/C-F = 2.26 +/- 0.09(stat.) +/- 0.06(sys.) +/- 0.12(clus.,scale).

Published
2000

48. 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
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49. A study of the Lorentz structure in tau decays

Author

The DELPHI Collaboration 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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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. Chizhov, M. Chliapnikov, 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. 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. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, 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. 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. Gouz, Y. 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. 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. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krstic, J. Krumstein, 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. 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. 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. 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. 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. Pozdniakov, 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. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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 Doninck, W.K. 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.S. 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. Zaitsev, A. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, P. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Experiment
Abstract

This paper describes a measurement of the Michel parameters, (Formula presented.), and the average (Formula presented.) helicity, (Formula presented.), in τ lepton decays together with the first measurement of the tensor coupling in the weak charged current. The (Formula presented.) pairs were produced at the LEP e+e− collider at CERN from 1992 through 1995 in the DELPHI detector. Assuming lepton universalityin the decays of the τ the measured values of the parameters were: (Formula presented.). The strength of the tensor coupling was measured to be κWτ = −0.029 ± 0.036 ± 0.018. The first error is statistical and the second error is systematic in all cases. The results are consistent with the V −A structure of the weak charged current in decays of the τ lepton. © Springer-Verlag 2000.

Published
2000

50. Identified charged particles 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. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barao, F. Barbiellini, G. Barbier, R. Bardin, D.Y. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Behrmann, A. Beilliere, P. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bigi, M. Bilenky, 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, Ph. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, 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. 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. Ekelof, 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. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. 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. Gouz, Y. 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, Ch. 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. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Langefeld, P. 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. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. 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. 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. 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. 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. Pozdniakov, 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, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Seemann, F. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, A. Sopczak, A. Sosnowski, R. Spassov, T. 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, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. 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.S. 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, Ph. Zucchelli, G.C. Zumerle, G.

Subjects
High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract

A sample of 2.2 million hadronic Z decays, selected from the data recorded by the DELPHI detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of π+ K+ and p and their antiparticles in gluon and quark jets. The production spectra of the individual identified particles were found to be softer in gluon jets compared to quark jets, with a higher multiplicity in gluon jets as observed for inclusive charged particles. A significant proton enhancement in gluon jets is observed indicating that baryon production proceeds directly from colour objects. The maxima, £*, of the ξ -distributions for kaons in gluon and quark jets are observed to be different.

Published
2000

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