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1. Measurement of the mass and width of the W boson in e+e− collisions at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E. Anashkin, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, N. Anjos, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, T.F. Bellunato, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, N. Besson, M.S. Bilenky, D. Bloch, H.M. Blom, L. Bol, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, P. Buschmann, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, J. Croix, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, S. Haug, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, O. Hertz, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, M. Kucharczyk, J. Kurowska, J.W. Lamsa, J.-P. Laugier, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, K. Moenig, M.R. Monge, J. Montenegro, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, R. Nicolaidou, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, L. Peralta, V. Perepelitsa, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, L. Salmi, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, C. Schwanda, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, Y. Sedykh, A.M. Segar, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, 7. Clean energy, 01 natural sciences, Beam energy
Abstract: A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- -> lvqq and W+W- -> qqqq channels. The W mass result for the 1998 data set is M_W = 80.387 +/- 0.087 (stat) +/- 0.034 (syst) +/- 0.017 (LEP) +/- 0.035 (FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qqqq channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI collaboration gives the result M_W = 80.359 +/- 0.074 (stat) +/- 0.032 (syst) +/- 0.017 (LEP) +/- 0.033 (FSI) GeV/c2. The combined value for the W width is \Gamma_W = 2.266 +/- 0.176 (stat) +/- 0.056 (syst) +/- 0.052 (FSI) GeV/c2.
Published: 2001
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2. Measurement of V from the decay process →Dℓ

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Analytical chemistry, Form factor (quantum field theory), 01 natural sciences, Pion, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Bar (unit)
Abstract: A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{*+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. exp.) +/- 1.3 (syst. th.)) x 10^{-3} BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell})=(4.70 +/- 0.13 (stat.) ^{+0.36}_{-0.31} (syst. exp.))% The analytic dependences of the differential cross-section and of the Isgur Wise form factor as functions of the variable w = v_{B^0}.v_{D^*} have also been obtained by unfolding the experimental resolution.
Published: 2001
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3. Search for spontaneous R-parity violation at GeV and 189 GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E. Anashkin, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, N. Anjos, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, N. Besson, M.S. Bilenky, D. Bloch, H.M. Blom, L. Bol, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, E. Brodet, P. Bruckman, J.-M. Brunet, L. Bugge, P. Buschmann, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, J. Croix, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, K. Hamilton, J. Hansen, F.J. Harris, S. Haug, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, O. Hertz, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, M. Kucharczyk, J. Kurowska, J.W. Lamsa, J.-P. Laugier, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, K. Moenig, M.R. Monge, J. Montenegro, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, R. Nicolaidou, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, L. Peralta, V. Perepelitsa, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, L. Salmi, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, C. Schwanda, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, Y. Sedykh, A.M. Segar, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Missing energy, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Parameter space, 01 natural sciences, Chargino, R-parity, 0103 physical sciences, High Energy Physics::Experiment, Limit (mathematics), Nuclear Experiment, 010306 general physics, Lepton
Abstract: Searches for spontaneous R-parity violating signals at sqrt(s) = 183 GeV and sqrt(s) = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the third lepton family. The expected topology for the decay of a pair of charginos into two acoplanar taus plus missing energy was investigated and no evidence for a signal was found. The results were used to derive a limit on the chargino mass and to constrain the allowed domains of the MSSM parameter space.
Published: 2001
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4. Search for R-parity violation with a coupling at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Coupling (probability), 01 natural sciences, 7. Clean energy, Standard Model, Chargino, Pair production, R-parity, 0103 physical sciences, Neutralino, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing), Lepton
Abstract: Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb^{-1} collected by the DELPHI detector at LEP. The data were analyzed under the assumption of non-conservation of R-parity through a single dominant Ubar Dbar Dbar coupling between squarks and quarks. Typical final states contain between 4 and 10 jets with or without additional leptons. No excess of data above Standard Model expectations was observed. The results were used to constrain domains of the MSSM parameter space and derive limits on the masses of supersymmetric particles. The following mass limits at 95% CL were obtained from these searches: neutralino mass: m_{\tilde{\chi^0_{1}}} \geq 32 GeV chargino mass: m_{\tilde{\chi^+_{1}}} \geq 94 GeV stop and sbottom mass (indirect decay) with \Delta M > 5 GeV: m_{\tilde{t_1}} \geq 74 GeV, for \Phi_{mix}=0 rad m_{\tilde{t_1}} \geq 59 GeV, for \Phi_{mix}=0.98 rad m_{\tilde{b_1}} \geq 72 GeV, for \Phi_{mix}=0 rad. The angle \phi_{mix} is the mixing angle between left and right handed quarks.
Published: 2001
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5. Upper limit for the decay and measurement of the branching ratio

Author: D. Bertrand, Jiri Chudoba, N. Benekos, Patrick Jarry, G. Rinaudo, Z. Krumstein, E. Cortina, J. Salt, Rupert Leitner, M. Battaglia, G. Matthiae, E. Kriznic, Ch. Royon, P. Kubinec, O. Klapp, Clara Troncon, S. Paiano, A. De Min, D. Moraes, L. Bugge, R. Janik, S. Crepe, Juergen Thomas, N. I. Zimin, I. Ripp-Baudot, E. K. Johansson, Borge Svane Nielsen, A. Maio, F. Carena, G. Sajot, U. Flagmeyer, N. Tinti, Krzysztof Doroba, Chiara Meroni, A. Tonazzo, H. Palka, W. Da Silva, W. A. Mitaroff, V. Malychev, S. Cabrera, V. Ruhlmann-Kleider, H. Foeth, Ph. Charpentier, A. G. Frodesen, M. S. Bilenky, J. W. Lamsa, C. Gaspar, Ugo Amaldi, M. Bonesini, Natale Demaria, U. Mueller, M. A. Bizouard, A. Passeri, L.J. Carroll, K. Muenich, Louis Lyons, Fabio Cossutti, F. J. Harris, F. Terranova, F. Richard, B. De Lotto, G. Crosetti, Evgueni Vlasov, P. Chochula, P. Negri, G. C. Zucchelli, Oxana Smirnova, Jelena Krstic, I. Gonzalez Caballero, W. De Boer, E. Zevgolatakos, A. W. Borgland, H. M. Blom, Y. Sacquin, Kathy Huet, P. Jonsson, Valeriy Pozdniakov, R. Alemany, P. Bruckman, F. Barao, Anna Lipniacka, E. I. Rosenberg, W. Van Doninck, A. De Angelis, K. Karafasoulis, Igor Boyko, T. Lesiak, S. Almehed, S. Fichet, M. Tobin, P. B. Renton, A. C. Taffard, P. Collins, S. Tzamarias, E. Higon, Giovanni Valenti, R. Chierici, F. Hahn, C. Matteuzzi, M. Nassiakou, O.M. Kouznetsov, V. Lepeltier, M. Pernicka, J. Fayot, Jesus Marco, G. Lenzen, R. Strub, F. Martinez-Vidal, G. Borisov, V. Kostioukhine, M. Siebel, Paolo Checchia, S. Gamblin, B. Schwering, B. Marechal, Richard Brenner, M. L. Turluer, F. Simonetto, D. Reid, E. C. Katsoufis, E. Boudinov, F. Scuri, Rosy Nicolaidou, G. Orazi, G. A. Chelkov, Ph. Gavillet, J-C. Marin, Daniel Bloch, J. E. Augustin, D. Wicke, A. Kinvig, G. Leder, E. Ferrer-Ribas, J. D. Durand, A. G. Olshevski, U. Schwickerath, Ahmimed Ouraou, Marta Calvi, R. Paiva, M. Gaspar, Vincenzo Canale, Geoffrey Smith, Klaus Hamacher, N. Neufeld, G. Mc Pherson, H. Herr, L. G. Tkatchev, P. V. Chliapnikov, B. Åsman, S. Haider, M. Feindt, S. Sánchez Navas, W. Liebig, Tord Ekelof, T. Alderweireld, P. Verdier, P. Niezurawski, J. MacNaughton, Gianni Zumerle, V. Lefebure, R. Gokieli, A. Nygren, M. Berggren, A. N. Sisakian, A. Sadovsky, Gunter Wolf, Demetrios Loukas, L. Di Ciaccio, L. Ventura, G. Grosdidier, A. Malek, A. Sokolov, S. Todorova, D. Crennell, F. Mandl, C. Caso, S. Heising, Claire Bourdarios, V. Chorowicz, P. Poropat, G. Smadja, A. Pullia, R. Muresan, P. Andersson, Andre Augustinus, Flavio Fontanelli, Wolfgang Adam, Alessandra Romero, A. Ruiz, Piotr Zalewski, Sofia Andringa, P. Tyapkin, S. Hoorelbeke, B. Loerstad, Paolo Morettini, Dimos Sampsonidis, J. Drees, Göran Jarlskog, Phillip Allport, K. Cieslik, C. Joram, Paolo Ronchese, Maria Roberta Monge, Christine Kourkoumelis, M. Baubillier, Achille Stocchi, J. M. Heuser, T. Podobnik, H. B. Crawley, G. Della Ricca, N. Pukhaeva, Ugo Gasparini, Yu. Belokopytov, N. J. Kjaer, Christian Weiser, A. Onofre, J. G. Loken, D. Fassouliotis, Andrea Perrotta, T. Tabarelli, B. Tome, P. Rebecchi, Th. D. Papadopoulou, Ch. Jarlskog, A. Zalewska, F. Glege, Jørgen Beck Hansen, Alexander Vodopyanov, G. Morton, E. G. Anassontzis, V.A. Uvarov, M. Mazzucato, P. Beilliere, Ph. Schwemling, O. Yushchenko, Evangelos Gazis, W. D. Apel, J. P. Engel, S. Stanic, M. V. Castillo Gimenez, H. Rahmani, I. Lippi, F. Pierre, Ariella Cattai, W. T. Meyer, Guillelmo Gomez-Ceballos, R. Sekulin, Manfred Krammer, R. Barbier, J. H. Wickens, V. Verzi, M. Bracko, B. Muryn, Marco Paganoni, V. Nomokonov, Oliver Passon, P. Goncalves, J. Van Eldik, F. Fulda-Quenzer, F. Ledroit, J. Fuster, G. Vegni, I. Bozovic, M. Stanitzki, Alessandro Petrolini, Dietrich Liko, P. Privitera, O. Ullaland, Gareth J. Barker, A. Miagkov, G. Tristram, B.P. Kersevan, Vincent Hedberg, Daniel Jeans, V. Gracco, E. Graziani, V. Obraztsov, M. Dracos, D. W. Lane, M. Davenport, C. Haag, N. Van Remortel, J. M. Brunet, T. Moa, L.N. Gerdyukov, Krzysztof Nawrocki, W. Van den Boeck, J. N. Jackson, Chariclia Petridou, Christopher Parkes, A. J. Washbrook, J. Cuevas Maestro, F. Tegenfeldt, R. Lauhakangas, R. Mc Nulty, L. Vitale, Guido Barbiellini, J. Rames, R. Sosnowski, F. Naraghi, P. Rosinsky, Klaus Moenig, Fabrizio Parodi, Cristian Stanescu, P. Branchini, Antonios Leisos, D. Radojicic, P. Kokkinias, I. van Vulpen, Matteo Pegoraro, G. Ekspong, B. Jean-Marie, M. A. Houlden, S. Marti i Garcia, P. Gris, Georgios Fanourakis, T. Buran, Markus Elsing, B. Franek, Amiran Tomaradze, R. Moeller, Daniel Treille, M. Bigi, P. Abreu, P. Van Dam, X. Moreau, Laurent Mirabito, D. Gele, J. Guy, Attilio Andreazza, K. Stevenson, I. A. Tyapkin, P. Lutz, J. Ridky, P. N. Ratoff, A. Markou, A. Galloni, Corinne Berat, L. K. Resvanis, J. H. Lopes, U. Parzefall, A. Firestone, S. O. Holmgren, Nikita Smirnov, Tiziano Rovelli, Olga Botner, G. Transtromer, A. Kiiskinen, I. V. Ajinenko, L. S. Vertogradov, Tim Adye, C. Bosio, Sandra Amato, M. Nikolenko, B. Buschbeck, B. Golob, Mattias Ellert, Carmen García, Reynald Pain, Massimo Caccia, S. Squarcia, A. Behrmann, H. Saarikko, Tiziano Camporesi, G. Cosme, S. Maltezos, Luca Tortora, T. Myklebust, P. Herquet, L. Simard, M. Begalli, P. J. Holt, Vaclav Vrba, R. Contri, N. G. Redaelli, Hans Dijkstra, Marco Bozzo, Pawel Jalocha, Barry King, Marc Winter, C. Mulet-Marquis, T. J. V. Bowcock, Petar Adzic, P. Juillot, L. Leinonen, E. Spiriti, Jiri Masik, R. Lopez-Fernandez, Ph. Zoller, M. Huber, C. Walck, Nikolaos P. Mastroyiannopoulos, G. D. Alekseev, R. Reinhardt, Nicola Amapane, T. L. Hessing, R. Frühwirth, N. Seibert, J. Timmermans, Luc Pape, Josef Strauss, J. Kurowska, R. C. Shellard, Josef Hrubec, V. Chabaud, G. J. Hughes, M. Espirito Santo, W. Venus, Chiara Mariotti, J. J. Hernandez, D. Zavrtanik, P. Delpierre, S. Hahn, R. Orava, G. Myatt, Manolis Dris, T. G M Malmgren, Mario Sannino, H. Wahlen, Francesca Romana Cavallo, I. Gil, Y. Arnoud, M. Moch, P. Roudeau, T. Geralis, V. V. Lapin, K. Grzelak, C. De Clercq, A. M. Segar, G. Eigen, W. J. Murray, M. Mc Cubbin, Z. Albrecht, Allan Hallgren, B. Bouquet, Antonio Baroncelli, Alberto Benvenuti, Fabrizio Ferro, Rafael Marco, J. Dolbeau, P. Bambade, P.S.L. Booth, L. Jungermann, K. H. Becks, E. Vallazza, J. Palacios, Arnaud Duperrin, D. Vilanova, P. Buschmann, R. Mc Kay, Stefano Ragazzi, E. Piotto, J. Grahl, Morgan Lethuillier, Maria Elena Pol, S. Katsanevas, A. Sopczak, D. Y. Bardin, R. Keranen, Francisco Matorras, C. Martinez-Rivero, A. Ferrer, Yu. Sedykh, Martijn Mulders, P. Antilogus, J. Rehn, Martino Margoni, E. Fokitis, Peter Kluit, F. Mazzucato, J. Libby, Ole Røhne, M. Pimenta, B. A. Khomenko, Francesco Navarria, Pablo Tortosa, A. Zintchenko, K. Hultqvist, L. Gorn, U. Mjoernmark, H. T. Phillips, P. Seager, N. Ghodbane, N. N. Khovanski, J. P. Laugier, M. Verlato, R. Jacobsson, J. Yi, A. Van Lysebetten, Sandor Czellar, G. Polok, Yu. Gouz, Ernesto Migliore, G. Kernel, T. Allmendinger, G. Wilkinson, J. M. Lopez, K. Kurvinen, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Luis Peralta, F. Kapusta, Marek Szczekowski, H. Klein, K. Osterberg, T. Pavel, J.R. Mahon, G. Gopal, Maarten Boonekamp, L. De Paula, M. Trochimczuk, T. Spassov, D. Gamba, M. Witek, G. Voulgaris, F. Verbeure, B. Stugu, and M. Gandelman
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Computer Science::Digital Libraries, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Computer Science::Mathematical Software, Higgs boson, High Energy Physics::Experiment, B meson, 010306 general physics, Lepton
Abstract: The branching ratio for the leptonic decay of charged B mesons View the MathML source has been measured using selected leptonic View the MathML source and hadronic τ−→ντX decays in View the MathML source decays recorded by DELPHI at LEP1 in 1992–1995. The result, View the MathML source at the 90% confidence level, is consistent with standard model expectations and puts a constraint on the ratio tanβ/MH±
Published: 2000
Full Text: View/download PDF

6. Determination of the e+e−→γγ(γ) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, Z. Hajduk, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, W. Kucewicz, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, A. Oblakowska Mucha, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Graviton, Lambda, 01 natural sciences, Upper and lower bounds, Gamma gamma, Cross section (geometry), Excited state, 0103 physical sciences, High Energy Physics::Experiment, Mass scale, 010306 general physics
Abstract: A test of the QED process e+e- -> gamma gamma (gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LEP, reaching 202 GeV in the centre-of-mass. The total integrated luminosity amounts to 375.7 pb^{-1}. The differential and total cross-sections for the process e+e- -> gamma gamma were measured, and found to be in agreement with the QED prediction. 95% Confidence Level (C.L.) lower limits on the QED cut-off parameters of Lambda+ > 330 GeV and Lambda- > 320 GeV were derived. A 95% C.L. lower bound on the mass of an excited electron of 311 GeV/c^2 (for lambda_gamma = 1) was obtained. s-channel virtual graviton exchange was searched for, resulting in 95% C.L. lower limits on the string mass scale, M_S: M_S > 713 GeV/c^2 (lambda = 1) and M_S > 691 GeV/c^2 (lambda = -1).
Published: 2000
Full Text: View/download PDF

7. Rapidity-rank structure of pairs in hadronic Z0 decays

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Hadron, Structure (category theory), Rank (differential topology), 01 natural sciences, Baryon, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: 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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8. Limits on the masses of supersymmetric particles at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Selectron tube, Particle physics, Chargino, 010308 nuclear & particles physics, 0103 physical sciences, Neutralino, 010306 general physics, 01 natural sciences, Lightest Supersymmetric Particle
Abstract: Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and other supersymmetric particles within the MSSM framework. R-parity conservation has been assumed. The lightest neutralino was found to be heavier than 32.3 GeV/c^2 independent of the m_0 value. The lightest chargino, the second-to-lightest neutralino, the next-to-heaviest neutralino, the heaviest neutralino, the sneutrino and the right-handed selectron were found to be heavier than 62.4 GeV/c^2, 62.4 GeV/c^2, 99.9 GeV/c^2, 116.0 GeV/c^2, 61.0 GeV/c^2, and 87.0 GeV/c^2, respectively. These limits do not depend on m_0 or M_2 and are valid for 1 \leq tan(beta) \leq 40, in the mu region where the lightest neutralino is the LSP. If the sneutrino is heavier than the chargino the lightest neutralino has to be heavier than 32.4 GeV/c^2. The effects of mixings in the third family of sfermions on these limits are discussed. The confidence level of all limits given is 95%.
Published: 2000
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9. Search for SUSY with R-parity violating couplings at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Scalar (mathematics), Supersymmetry, Lambda, 01 natural sciences, Standard Model, Pair production, R-parity, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing), Lepton
Abstract: Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e+e- collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL\bar{E} term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at sqrt(s) = 183 GeV. The present 95% C.L. limits on supersymmetric particle masses are: m_{\tilde{\chi}^0} > 30 GeV/c^2 and m_{\tilde{\chi}^\pm} > 94 GeV/c^2; m_{\tilde{\nu}} > 76.5 GeV/c^2 (direct and indirect decays); m_{\tilde{\ell}_R} > 83 GeV/c^2 (indirect decay only).
Published: 2000
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10. Determination of |Vub|/|Vcb| with DELPHI at LEP

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, G. Zumerle, UCL - SST/IRMP - Institut de recherche en mathématique et physique, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Nuclear and High Energy Physics, Particle physics, Meson, Hadron, FOS: Physical sciences, 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Nuclear Experiment, 010306 general physics, DELPHI, Physics, Energy distribution, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Rest frame, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: The ratio of the CKM quark-mixing matrix elements |Vub|/|Vcb| has been measured using B hadron semileptonic decays. The analysis uses the reconstructed mass M_X of the secondary hadronic system produced in association with an identified lepton. Since B -> X_u lepton anti-nu transitions are characterised by hadronic masses below those of the D mesons produced in B -> X_c lepton anti-nu transitions, events with a reconstructed value of M_X significantly below the D mass are selected. Further signal enrichments are obtained using the topology of reconstructed decays and hadron identification. A fit to the numbers of decays in the b -> u enriched and depleted samples with M_X above and below 1.6 GeV/c^2 and to the shapes of the lepton energy distribution in the B rest frame gives |Vub|/|Vcb|= 0.103^{+0.011}_{-0.012} (stat.) +/- 0.016 (syst.) +/- 0.010 (model) and, correspondingly, a charmless semileptonic B decay branching fraction of BR(B -> X_u lepton anti-nu) = (1.57 +/- 0.35 (stat.) +/- 0.48 (syst.) +/- 0.27 (model)) x 10^{-3}., 24 pages, 8 figures
Published: 2000
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11. Search for heavy stable and long-lived particles in e+e− collisions at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, 010308 nuclear & particles physics, Detector, 01 natural sciences, Ring-imaging Cherenkov detector, Charged particle, Ionization, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Cherenkov radiation
Abstract: A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector. No evidence for the production of such particles has been found, therefore exclusion limits at 95% confidence level were derived on the masses of left and right handed smuons and staus. The results were combined with previous DELPHI searches in this channel. Including previous DELPHI results, masses of left (right) handed stable smuons and staus can be excluded between 2 GeV/c^2 and 88 (87.5) GeV/c^2 at 95% CL.
Published: 2000
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12. Search for charginos in e+e− interactions at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Chargino, 010308 nuclear & particles physics, 0103 physical sciences, Neutralino, Gravitino, 010306 general physics, 01 natural sciences, Resonance (particle physics), Energy (signal processing)
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.
Published: 2000
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13. Measurement of the branching fraction

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, P. Ferrari, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, 01 natural sciences, Crystallography, Pion, 0103 physical sciences, Pi, High Energy Physics::Experiment, B meson, Impact parameter, Neutrino, 010306 general physics, Lepton
Abstract: A study of b semileptonic decays into D, D pi+- and D* pi+- 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 -> D^0 \ell^- \bar{\nu}_{\ell} X) = (7.04 +/- 0.34 (stat) +/- 0.36 (syst.exp) +/- 0.17 (BR_D))% BR(b -> D^+ \ell^- \bar{\nu}_{\ell} X) = (2.72 +/- 0.19 (stat) +/- 0.16 (syst.exp) +/- 0.18 (BR_D))% BR(b -> D^{*+} \ell^- \bar{\nu}_{\ell} X) = (2.75 +/- 0.17 (stat) +/- 0.13 (syst.exp) +/- 0.09 (BR_D))% where the D0 and D+ results include also contributions from D*0 and D*+ decays. A fit to the distribution of the pi+- impact parameter to the primary interaction vertex provides a measurement of the b semileptonic branching fractions into the D0 pi+- X, D+ pi+- X and D*+ pi+- X final states. Assuming that single pion decay modes of B mesons dominate, the partial rates for \bar{B} -> D \pi \ell^- \bar{\nu_{\ell}} and \bar{B} -> D^{*} \pi \ell^- \bar{\nu_{\ell}} have been obtained, corresponding to a total branching fraction: BR(\bar{B} -> D \pi \ell^- \bar{\nu_{\ell}}) + BR(\bar{B} -> D^{*} \pi \ell^- \bar{\nu_{\ell}}) = (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 \bar{B} -> D \ell^- \bar{\nu_{\ell}} and D^* \ell^- \bar{\nu_{\ell}} branching fractions.
Published: 2000
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14. Λb polarization in Z0 decays at LEP

Author: P. Privitera, Chariclia Petridou, W. Liebig, Marc Winter, Nikolaos P. Mastroyiannopoulos, Tord Ekelof, T. G M Malmgren, G. Wilkinson, H. Wahlen, J. M. Lopez, J. H. Lopes, U. Parzefall, A. Firestone, D. Fassouliotis, Daniel Treille, M. Bigi, J. Ridky, F. Pierre, B. Loerstad, Vincent Hedberg, D. W. Lane, A. N. Sisakian, E. Boudinov, G. Ekspong, K. Stevenson, P. N. Ratoff, Mattias Ellert, M. Begalli, M. A. Bizouard, N. Tinti, K. Muenich, T. Tabarelli, Louis Lyons, Giovanni Valenti, G. A. Chelkov, Demetrios Loukas, A. Sadovsky, K. H. Becks, E. Vallazza, Paolo Morettini, J. G. Loken, Piotr Zalewski, Z. Krumstein, S. Paiano, A. De Min, K. Kurvinen, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, C. Mulet-Marquis, P. Beilliere, H. Rahmani, Manfred Krammer, G. Sajot, U. Flagmeyer, J-C. Marin, Nikita Smirnov, M. Verlato, Krzysztof Nawrocki, Luca Tortora, T. Myklebust, P. Herquet, Oliver Passon, R. Contri, A. Miagkov, Ariella Cattai, J. Van Eldik, F. Ledroit, J. Fuster, M. Moch, O. Tchikilev, Anna Lipniacka, V.A. Uvarov, Natale Demaria, M. Tobin, Christian Weiser, A. Petrolini, B. De Lotto, G. Crosetti, Evgueni Vlasov, U. Mjoernmark, P. Van Dam, Nicola Amapane, R. Jacobsson, S. Todorova, Matteo Pegoraro, A. G. Frodesen, T. J. V. Bowcock, M. S. Bilenky, O. Ullaland, M. Feindt, S. Sánchez Navas, T. L. Hessing, P. Buschmann, R. Mc Kay, A. Andreazza, K. Grzelak, Allan Hallgren, Manolis Dris, M. Davenport, N. Neufeld, G. Grosdidier, Alessandra Romero, C. Bosio, P. Negri, C. Joram, A. Ruiz, H. T. Phillips, A. J. Washbrook, P. B. Renton, M. Baubillier, Achille Stocchi, L.J. Carroll, Jørgen Beck Hansen, F. Fulda-Quenzer, Alexander Vodopyanov, J. N. Jackson, P. Roudeau, J. Yi, Tiziano Camporesi, Antonio Baroncelli, S. Tzamarias, N. I. Zimin, Patrick Jarry, Göran Jarlskog, J. Grahl, G. Rinaudo, A. Behrmann, J. Salt, Alberto Benvenuti, L. Di Ciaccio, Wolfgang Adam, R. Keranen, J. Rames, P. Kokkinias, B. Franek, E. Graziani, Borut Paul Kerševan, Maria Elena Pol, A. C. Taffard, Fabrizio Ferro, B. Marechal, E. C. Katsoufis, Rosy Nicolaidou, J. M. Brunet, H. Foeth, G. Mc Pherson, Fabio Cossutti, H. Herr, L. G. Tkatchev, I. Gonzalez Caballero, J. J. Hernandez, H. M. Blom, Ch. Jarlskog, Christophe Royon, S. Hoorelbeke, F. Glege, W. D. Apel, Z. Albrecht, Philippe Charpentier, Francisco Matorras, Paolo Ronchese, A. Onofre, S. Katsanevas, A. Sopczak, M. Huber, Marta Calvi, P. Seager, Josef Strauss, D. Y. Bardin, V. Chabaud, Luis Peralta, F. Kapusta, Vincenzo Canale, Geoffrey Smith, Pawel Jalocha, Barry King, A. Galloni, S. O. Holmgren, E. Spiriti, Jiri Masik, Ph. Zoller, R. Frühwirth, N. Seibert, J. Timmermans, W. Venus, L. S. Vertogradov, N. J. Kjaer, Yu. Belokopytov, M. Espirito Santo, Igor Boyko, Y. Sacquin, T. Lesiak, R. Barbier, J. E. Augustin, R. Paiva, A. Nygren, M. Berggren, R. Lopez-Fernandez, R. C. Shellard, Josef Hrubec, A. De Angelis, P. Collins, G. Borisov, Daniel Bloch, G. Cosme, P. Delpierre, U. Mueller, F. Carena, N. Ghodbane, J. D. Durand, P. Antilogus, J. Rehn, P. V. Chliapnikov, P. Abreu, D. Gele, G. Vegni, P. Bruckman, E. Kriznic, Ahmimed Ouraou, Kathy Huet, P. Jonsson, Valeriy Pozdniakov, A. Van Lysebetten, Sandor Czellar, G. Polok, Yu. Gouz, Ernesto Migliore, I. Bozovic, N. Van Remortel, A. G. Olshevski, R. Sosnowski, S. Haider, G. Myatt, A. M. Segar, F. Simonetto, G. Leder, P. Ferrari, J. Cuevas Maestro, M. Gaspar, P. J. Holt, N. G. Redaelli, Marco Bozzo, B. Åsman, L. Ventura, F. Naraghi, P. Andersson, Klaus Hamacher, N. N. Khovanski, M. Regler, C. Martinez-Rivero, W. Bonivento, G. Orazi, Ugo Gasparini, G. Tristram, E. I. Rosenberg, U. Schwickerath, S. Gamblin, Danilo Zavrtanik, Gareth J. Barker, Rupert Leitner, M. Battaglia, G. Matthiae, R. Gokieli, S. Heising, M. Pernicka, C. Caso, F. Fontanelli, V. Lefebure, R. Muresan, D. Crennell, F. Mandl, Vaclav Vrba, J. Palacios, Arnaud Duperrin, G. Smadja, Tiziano Rovelli, Hans Dijkstra, D. Wicke, D. Bertini, J. Fayot, Jesus Marco, G. Lenzen, P. Kubinec, Clara Troncon, Christine Kourkoumelis, A. Kiiskinen, R. Strub, Sofia Andringa, A. Pullia, Maria Roberta Monge, A. Maio, S. Cabrera, C. Gaspar, A. Zalewska, F. Martinez-Vidal, V. Kostioukhine, Dimos Sampsonidis, A. Malek, G. Della Ricca, Oxana Smirnova, Yu. Sedykh, K. Cieslik, K. Karafasoulis, J. M. Heuser, T. Buran, Sandra Amato, W. T. Meyer, P. Rosinsky, R. Moeller, V. Nomokonov, T. Podobnik, O. Kouznetsov, I. van Vulpen, B. Tome, P. Rebecchi, Th. D. Papadopoulou, V. Ruhlmann-Kleider, B. Golob, H. Palka, A. B. Fenyuk, G. C. Zucchelli, Markus Elsing, J. W. Lamsa, Petar Adzic, H. B. Crawley, Guillelmo Gomez-Ceballos, E. Ferrer-Ribas, J. P. Laugier, B. Schwering, I. Lippi, M. L. Turluer, F. Barao, D. Reid, J. H. Wickens, B. Muryn, Marco Paganoni, S. Crepe, L. K. Resvanis, Massimo Caccia, S. Squarcia, H. Saarikko, J. Drees, M. Bracko, Laurent Mirabito, V. Lepeltier, M. Siebel, C. Parkes, E. Higon, Paolo Checchia, L. Simard, P. Juillot, F. J. Harris, F. Terranova, P. Niezurawski, Corinne Berat, Olga Botner, F. Scuri, W. Van den Boeck, Ph. Gavillet, Cristian Stanescu, P. Branchini, L. Vitale, Antonios Leisos, D. Radojicic, Gianni Zumerle, Georgios Fanourakis, C. Walck, R. Reinhardt, L. Leinonen, Gunter Wolf, Evangelos Gazis, X. Moreau, G. Transtromer, W. Da Silva, W. A. Mitaroff, Carmen García, J. MacNaughton, P. Lutz, V. Chorowicz, Luc Pape, Reynald Pain, J. Libby, Ole Røhne, J. Kurowska, M. Pimenta, P. Poropat, Guido Barbiellini, Andre Augustinus, Claire Bourdarios, Marek Szczekowski, D. Bertrand, Jiri Chudoba, Ph. Schwemling, O. Yushchenko, G. Morton, G. Kernel, R. Sekulin, F. Richard, M. Mazzucato, E. Cortina, P. Chochula, R. Alemany, M. Stanitzki, B. A. Khomenko, T. Moa, I. Ripp-Baudot, G. J. Hughes, H. Klein, J. Guy, Amiran Tomaradze, M. Dracos, A. Passeri, L. Chaussard, A. Markou, C. Matteuzzi, K. Osterberg, S. Almehed, S. Fichet, Chiara Mariotti, Francesco Navarria, Pablo Tortosa, A. Zintchenko, L. Bugge, R. Chierici, P. P. Allport, F. Hahn, M. Nassiakou, S. Hahn, Francesca Romana Cavallo, R. Orava, I. Gil, T. Pavel, Y. Arnoud, S. Stanic, V. V. Lapin, J.R. Mahon, C. De Clercq, W. J. Murray, G. Gopal, K. Hultqvist, G. Eigen, Maarten Boonekamp, L. De Paula, B. Bouquet, I. A. Tyapkin, R. Janik, Andrea Perrotta, M. Trochimczuk, M. Bonesini, T. Spassov, D. Gamba, Tim Adye, M. Witek, G. Voulgaris, F. Verbeure, E. G. Anassontzis, R. Mc Nulty, J. P. Engel, M. V. Castillo Gimenez, B. Jean-Marie, B. Stugu, I. V. Ajinenko, M. Nikolenko, B. Buschbeck, M. Gandelman, L. Gorn, J. Dolbeau, P. Bambade, P.S.L. Booth, Juergen Thomas, E. K. Johansson, L. Jungermann, S. Maltezos, G. D. Alekseev, N. Benekos, E. Piotto, V. Gracco, V. Malychev, R. Lauhakangas, Mario Sannino, O. Klapp, Klaus Moenig, Fabrizio Parodi, M. A. Houlden, S. Marti i Garcia, Borge Svane Nielsen, M. Mc Cubbin, Rafael Marco, Krzysztof Doroba, Chiara Meroni, A. Tonazzo, Peter Kluit, F. Mazzucato, D. Vilanova, Stefano Ragazzi, Morgan Lethuillier, A. Ferrer, Martijn Mulders, Martino Margoni, E. Fokitis, P. Goncalves, Daniel Jeans, V. Obraztsov, F. Tegenfeldt, P. Gris, Thomas Allmendinger, A. Kinvig, T. Alderweireld, N. Pukhaeva, V. Verzi, Ugo Amaldi, W. De Boer, E. Zevgolatakos, A. W. Borgland, Richard Brenner, and Dietrich Liko
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Astrophysics::Cosmology and Extragalactic Astrophysics, Lambda, Lambda baryon, 01 natural sciences, Nuclear physics, Baryon, 0103 physical sciences, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Neutrino, Nuclear Experiment, 010306 general physics, Lepton
Abstract: The longitudinal polarization of the Λb baryon is measured at the LEP e+e− collider by DELPHI. It is determined from the charged lepton and neutrino energy spectra in 249±19 Λb semileptonic decays reconstructed in ≈3.5 million hadronic Z0 decays using Λ0-lepton correlations. The measured polarization is: PΛb=−0.49−0.30+0.32(stat.)±0.17(syst.)
Published: 2000
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15. Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at GeV at LEP

Author: A. Deghorain, Natale Demaria, N. Tinti, R. Lauhakangas, L. Leinonen, M. Tobin, Piotr Zalewski, E. Higon, C. Martinez-Rivero, K. Muenich, P. Bruckman, E. Kriznic, G. Orazi, P. B. Renton, F. Scuri, Louis Lyons, Danilo Zavrtanik, Ugo Gasparini, A. C. Taffard, R. Gokieli, M. Feindt, I. Gonzalez Caballero, V.A. Uvarov, B. Marechal, T. Tabarelli, S. Sánchez Navas, R. Muresan, Sofia Andringa, O. Solovianov, Guido Barbiellini, J. Guy, P. Negri, P. Ferrari, Andrea Perrotta, Göran Jarlskog, O. Klapp, Rosy Nicolaidou, Marta Calvi, E. K. Johansson, Ch. Jarlskog, M. A. Bizouard, P. Niezurawski, Demetrios Loukas, F. Glege, W. D. Apel, Patrick Jarry, G. Rinaudo, S. Stanic, Borge Svane Nielsen, Geoffrey Smith, Tim Adye, Krzysztof Doroba, Chiara Meroni, G. Cosme, K. Stevenson, J. N. Jackson, G. Vegni, F. Carena, S. Cabrera, H. Rahmani, L. Jungermann, A. Tonazzo, M. Pernicka, Klaus Hamacher, X. Moreau, Jesus Marco, G. Lenzen, Oxana Smirnova, Luca Tortora, T. Myklebust, V. Kostioukhine, M. Koratzinos, J. Rames, R. Mc Nulty, J-C. Marin, I. Gil, S. Fichet, Ariella Cattai, Christophe Royon, S. Hoorelbeke, G. Grosdidier, B. Jean-Marie, Paolo Ronchese, V. Malychev, Gareth J. Barker, Peter Kluit, F. Mazzucato, Dietrich Liko, Chariclia Petridou, G. Valenti, P. Adzic, K. Karafasoulis, J. Libby, Ole Røhne, Rupert Leitner, M. Pimenta, G. Matthiae, F. Ledroit, D. Fassouliotis, A. N. Sisakian, P. Herquet, R. Contri, Nicola Amapane, U. Mueller, Stefano Ragazzi, F. Barao, O. Ullaland, B. Schwering, M. L. Turluer, D. Reid, N. J. Kjaer, M. A. Winter, Nektarios Benekos, A. Petrolini, Daniel Treille, M. Bigi, J. Fayot, J. Ridky, C. Vander Velde, Morgan Lethuillier, F. Pierre, B. A. Khomenko, E. I. Rosenberg, T. Buran, Markus Elsing, A. Sadovsky, A. Stocchi, Francesco Navarria, Pablo Tortosa, I. van Vulpen, J. M. Heuser, G. Smadja, Tiziano Camporesi, A. Zintchenko, P. J. Holt, Vincent Hedberg, D. W. Lane, Manolis Dris, B. De Lotto, P. Kubinec, Clara Troncon, S. Crepe, J. Van Eldik, P. Jalocha, Gianni Zumerle, G. Crosetti, Evgueni Vlasov, A. J. Washbrook, K. Kurvinen, S. Gamblin, N. G. Redaelli, G. Tristram, V. Chorowicz, Marco Bozzo, G. Ekspong, M. Davenport, D. Wicke, P. N. Ratoff, G. Mc Pherson, B. Franek, Attilio Andreazza, M. Nikolenko, V. Ruhlmann-Kleider, H. Herr, L. G. Tkatchev, L. Gorn, G. A. Chelkov, Ugo Amaldi, N. Ghodbane, J. Drees, C. Walck, R. Reinhardt, Alberto Benvenuti, Fabrizio Ferro, W. De Boer, E. Zevgolatakos, A. W. Borgland, E. Ferrer-Ribas, Manfred Krammer, Denis Gelé, P. Poropat, Andromachi Tsirou, Andre Augustinus, A. Nygren, M. Bracko, A. Tomaradze, Martijn Mulders, Mattias Ellert, M. Begalli, Martino Margoni, E. Fokitis, G. D. Alekseev, A. G. Frodesen, S. Tzamarias, N. I. Zimin, T. G M Malmgren, H. Wahlen, K. H. Becks, E. Vallazza, G. J. Hughes, D. Bertrand, Corinne Berat, Olga Botner, G. Transtromer, Carmen García, Ph. Schwemling, O. Yushchenko, Jiri Chudoba, Chiara Mariotti, Reynald Pain, Mario Sannino, I. Lippi, J. H. Lopes, U. Parzefall, A. Firestone, J. H. Wickens, Marco Paganoni, S. Hahn, W. Liebig, Tord Ekelof, R. Sekulin, Evangelos Gazis, L. Bugge, M. Stanitzki, J. J. Hernandez, T. Pavel, U. Mjoernmark, P. Buschmann, B. Muryn, M. Chapkin, Francesca Romana Cavallo, M. Mc Cubbin, Paulo J. S. Gonçalves, P. Van Dam, K. Hultqvist, Rafael Marco, L. Ventura, N. Neufeld, R. Mc Kay, Y. Arnoud, Vaclav Vrba, T. Moa, C. Mulet-Marquis, A. Duperrin, V. V. Lapin, A. Galloni, H. T. Phillips, Richard Brenner, Hans Dijkstra, J. Grahl, S. O. Holmgren, C. De Clercq, P. Delpierre, P. Andersson, B. Loerstad, P. V. Chliapnikov, A. Behrmann, P. Kokkinias, R. Janik, C. Gaspar, L. S. Vertogradov, C. Bosio, G. Kernel, W. J. Murray, A. Markou, A. Kinvig, Christian Weiser, A. Sopczak, D. Vilanova, L. Chaussard, L. Di Ciaccio, R. Strub, L. Vitale, R. Keranen, Guy Wilkinson, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, Gunter Wolf, Georgios Fanourakis, Tiziano Rovelli, Philippe Charpentier, Francisco Matorras, Juergen Thomas, Barry King, P. Seager, G. Borisov, Borut Paul Kerševan, G. C. Zucchelli, V. Nomokonov, R. Lopez-Fernandez, R. C. Shellard, A. Passeri, Josef Hrubec, Christine Kourkoumelis, Wolfgang Adam, G. Myatt, M. Moch, E. Spiriti, T. Alderweireld, J. E. Augustin, R. Frühwirth, N. N. Khovanski, T. Spassov, A. M. Segar, K. Grzelak, M. Baubillier, Yu. Belokopytov, V. Canale, N. Seibert, V. Lepeltier, M. Siebel, J. Timmermans, Allan Hallgren, E. C. Katsoufis, G. Gopal, M. Huber, P. Lutz, Paolo Checchia, F. Fulda-Quenzer, F. Fontanelli, Antonio Baroncelli, Jørgen Beck Hansen, Oliver Passon, B. Tome, P. Antilogus, J. Rehn, Ph. Gavillet, A. M. Zaitsev, Alexander Vodopyanov, Luc Pape, Josef Strauss, J. Kurowska, J. Palacios, V. Chabaud, M. Espirito Santo, N. Pukhaeva, Maarten Boonekamp, E. Graziani, J. M. Brunet, H. Foeth, I. A. Tyapkin, R. Alemany, J. MacNaughton, L. De Paula, V. Verzi, G. Morton, Paolo Privitera, M. Mazzucato, J. R. Mahon, Pierre Juillot, Claire Bourdarios, E. Boudinov, W. Venus, Christopher Parkes, Matteo Pegoraro, B. Buschbeck, Z. Krumstein, A. De Angelis, S. Paiano, A. Onofre, P. Collins, J. Cuevas Maestro, Daniel Jeans, A. De Min, V. Obraztsov, Paolo Morettini, Daniel Bloch, P. Roudeau, J. G. Loken, P. Beilliere, Ahmimed Ouraou, M. S. Bilenky, F. Tegenfeldt, Luis Peralta, F. Kapusta, P. Gris, E. Cortina, S. Heising, G. Sajot, U. Flagmeyer, Krzysztof Nawrocki, Stavros Maltezos, H. M. Blom, Y. Sacquin, Kathy Huet, Valeriy Pozdniakov, L.J. Carroll, Per Jönsson, A. Pullia, Anna Lipniacka, Fabio Cossutti, Igor Boyko, T. Lesiak, C. Joram, F. Simonetto, G. Leder, M. Gaspar, J. P. Laugier, R. Barbier, Marek Szczekowski, B. Åsman, V. Lefebure, P. Rosinsky, D. Crennell, N. Mastroyiannopoulos, R. Moeller, F. Mandl, H. Klein, L. K. Resvanis, K. Osterberg, Massimo Caccia, L. Simard, M. Trochimczuk, K. Cieslik, M. Bonesini, D. Gamba, M. Witek, G. Voulgaris, F. Verbeure, B. Stugu, M. Gandelman, E. G. Anassontzis, J. P. Engel, P. Bambade, M. V. Castillo Gimenez, B. Golob, V. Gracco, Klaus Moenig, Fabrizio Parodi, M. A. Houlden, S. Marti i Garcia, W. Da Silva, W. A. Mitaroff, W. K. Van Doninck, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, R. Chierici, F. Hahn, M. Nassiakou, R. Paiva, S. Haider, F. J. Harris, F. Terranova, C. Caso, H. B. Crawley, Alessandra Romero, A. Ruiz, I. Bozovic, N. Van Remortel, R. Sosnowski, F. Naraghi, Dimos Sampsonidis, Phillip Allport, G. Della Ricca, P. Rebecchi, Th. D. Papadopoulou, Guillelmo Gomez-Ceballos, José Salt, Amelia Maio, W. Van den Boeck, Cristian Stanescu, P. Branchini, J. D. Durand, A. G. Olshevski, U. Schwickerath, Maria Roberta Monge, A. Zalewska, W. T. Meyer, M. Verlato, Laurent Mirabito, T. J. V. Bowcock, T. L. Hessing, M. Berggren, Z. Albrecht, Juan Fuster, Antonio Ferrer, D. Bertini, R. Jacobsson, S. Todorova, T. Allmendinger, J. M. Lopez, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, J. Yi, M. Battaglia, J. Masik, A. Van Lysebetten, Sandor Czellar, G. Polok, B. Bouquet, Yu. Gouz, Ernesto Migliore, P. Abreu, R. Orava, G. Eigen, Maria Elena Pol, S. Katsanevas, A. Kiiskinen, D. Y. Bardin, Sandra Amato, T. Podobnik, O. Kouznetsov, K. Belous, M. Regler, S. Squarcia, Yu. Sedykh, H. Saarikko, J. Dolbeau, P.S.L. Booth, E. Piotto, W. Bonivento, A. Malek, A. Sokolov, Marcos Dracos, H. Palka, and J. W. Lamsa
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Context (language use), 01 natural sciences, Lightest Supersymmetric Particle, Nuclear physics, Pair production, Chargino, 0103 physical sciences, High Energy Physics::Experiment, Gravitino, Production (computer science), 010306 general physics, Energy (signal processing)
Abstract: Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data collected with the DELPHI detector at a centre-of-mass energy near 183~{~mbox{${mathrm{GeV}}$}}\nwere analysed combining the methods developed in previous searches. No evidence for the production of these particles was found. Hence, limits were derived at 95% confidence level. The mass of charginos was found to be greater than 85.5~GeV/$c^2$ for $m_{ ilde{chi}^+_1}-m_{ ilde{ au}_1}geq 0.3 {mathrm{GeV}}/c^2$, independently of the mass of the gravitino.
Published: 1999
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16. Measurement of the rate of events in hadronic Z decays and the extraction of the gluon splitting into

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, P. Branchini, T. Brenke, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, P. Ferrari, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, C. Green, H-J. Grimm, P. Gris, G. Grosdidier, K. Grzelak, M. Gunther, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, M. Koratzinos, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, J. Krstic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Normand, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, H. Schneider, Ph. Schwemling, B. Schwering, U. Schwickerath, M.A.E. Schyns, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, R. Sekulin, R.C. Shellard, A. Sheridan, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stanic, K. Stevenson, A. Stocchi, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. Van Remortel, I. Van Vulpen, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, C. Vollmer, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Jet (particle physics), 01 natural sciences, Bottom quark, Gluon, 0103 physical sciences, Invariant mass, Production (computer science), Atomic physics, 010306 general physics, Bar (unit)
Abstract: The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with $y_{min} 0.06$ and a b-tag was required for every jet. The rate was measured to be: $R_{4b} = BR(Z \to b\overline{b}b\overline{b}) / BR(Z \to hadrons) = (6.0 +- 1.9(stat) +- 1.4(syst.)) x 10^{-4}$ where the invariant mass of every $b\overline{b}$ system is above twice the b quark mass. Using the value of $R_{4b}$ the probability of secondary production of a $b\overline{b}$ pair from a gluon per hadronic $Z$ decay, $g_{bb}$, was extracted and found to be: $g_{bb} = (3.3+-1.0(stat.) +- 0.8(syst.)) x 10^{-3}$.
Published: 1999
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17. Measurement of inclusive ρ0, f0(980), f2(1270), K and f′2(1525) production in Z0 decays

Author: Natale Demaria, J. H. Lopes, L. S. Vertogradov, Mario Sannino, T. Spassov, G. Borisov, U. Parzefall, A. Firestone, Attilio Andreazza, M. Mc Cubbin, M. Baubillier, V. Canale, K. Hultqvist, Rafael Marco, P. B. Renton, Jørgen Beck Hansen, R. Lopez-Fernandez, R. C. Shellard, Josef Hrubec, H. Palka, Alexander Vodopyanov, Stefano Ragazzi, Morgan Lethuillier, C. Mulet-Marquis, Paulo J. S. Gonçalves, P. Van Dam, P. Abreu, N. Neufeld, F. Bianchi, A. Tomaradze, Martijn Mulders, Martino Margoni, E. Fokitis, G. Vegni, B. Marechal, A. M. Segar, A. Sheridan, G. A. Chelkov, Marta Calvi, Geoffrey Smith, D. Vilanova, T. Brenke, Ugo Amaldi, G. J. Hughes, W. De Boer, E. Zevgolatakos, K. Stevenson, J. Yi, F. Fontanelli, J. Palacios, Tiziano Rovelli, M. Moch, Dietrich Liko, Hans Dijkstra, P. Bruckman, A. W. Borgland, G. Valenti, Chiara Mariotti, Piotr Zalewski, K. Grzelak, G. Orazi, Ugo Gasparini, Guido Barbiellini, J. Guy, S. Stanic, Tim Adye, J. Cuevas Maestro, Chariclia Petridou, A. G. Olshevski, Luis Peralta, F. Kapusta, M. Battaglia, Allan Hallgren, Antonio Baroncelli, A. N. Sisakian, Wolfgang Adam, D. Fassouliotis, I. van Vulpen, G. W. Van Apeldoorn, D. Bertrand, S. Hahn, A. Kiiskinen, L. Ventura, Jiri Chudoba, L. Bugge, Pawel Jalocha, Barry King, Luca Tortora, T. Myklebust, Francesca Romana Cavallo, E. Spiriti, A. Sadovsky, F. Pierre, Daniel Treille, V.A. Uvarov, M. Bigi, Y. Arnoud, U. Schwickerath, A. Stocchi, Vincent Hedberg, P. Herquet, P. Andersson, R. Contri, J. Fayot, Sandra Amato, T. Podobnik, J. Timmermans, A. Van Lysebetten, Sandor Czellar, E. G. Anassontzis, Yu. Belokopytov, J. Ridky, V. V. Lapin, D. W. Lane, M. A. Bizouard, Gunter Wolf, C. De Clercq, Maria Roberta Monge, Richard Brenner, A. Pullia, T. Burgsmueller, G. Ekspong, D. Stampfer, G. Polok, Christine Kourkoumelis, W. J. Murray, J. N. Jackson, A. Duperrin, J. P. Engel, Christophe Royon, S. Hoorelbeke, Mariusz Witek, Paolo Ronchese, S. Squarcia, H. Saarikko, F. Simonetto, M. V. Castillo Gimenez, W. T. Meyer, R. Janik, Yu. Gouz, M. Gunther, J-C. Marin, B. Erzen, P. Kokkinias, R. Strub, Manolis Dris, Luc Pape, Manfred Krammer, Denis Gelé, J. Kurowska, N. J. Kjaer, P. N. Ratoff, F. Carena, Rupert Leitner, T. Tabarelli, P. Roudeau, Ernesto Migliore, A. Passeri, Guy Wilkinson, G. Leder, Pierre Juillot, E. Boudinov, O. Tchikilev, P. Rosinsky, G. Matthiae, Oxana Smirnova, Mattias Ellert, Andrea Perrotta, M. A. Winter, M. Gaspar, M. Verlato, Alberto Benvenuti, G. Smadja, S. Crepe, J. Van Eldik, S. Cabrera, B. Åsman, H. Rahmani, Laurent Mirabito, K. Karafasoulis, G. Damgaard, A. Petrolini, C. Gaspar, M. Davenport, A. Onofre, B. Golob, V. Chorowicz, M. Begalli, B. De Lotto, G. Crosetti, Evgueni Vlasov, V. Obraztsov, C. Green, G. Tristram, R. Alemany, Juergen Thomas, M. L. Turluer, D. Reid, Ariella Cattai, R. Moeller, F. Barao, Paolo Morettini, J. G. Loken, G. Morton, Paolo Privitera, M. Mazzucato, J. R. Mahon, V. Ruhlmann-Kleider, G. C. Zucchelli, R. Mc Nulty, V. Lefebure, P. Seager, M. Berggren, F. Tegenfeldt, L. K. Resvanis, P. Beilliere, M. Pernicka, D. Crennell, Jelena Krstic, F. Mandl, N. Tinti, P. Gris, E. Cortina, V. Gracco, F. Ledroit, P. Kubinec, S. Fichet, G. Mc Pherson, C. Joram, A. G. Frodesen, Gianni Zumerle, Dimos Sampsonidis, Phillip Allport, G. Della Ricca, P. Rebecchi, O.M. Kouznetsov, Antonio Ferrer, D. Bertini, R. Jacobsson, S. Todorova, H. Herr, L. G. Tkatchev, A. Nygren, J. W. Lamsa, Jesus Marco, G. Lenzen, O. Ullaland, Nikolaos P. Mastroyiannopoulos, C. Bosio, V. Lepeltier, M. Siebel, L. Leinonen, K. Muenich, Massimo Caccia, P. Poropat, T. J. V. Bowcock, V. Kostioukhine, M. Koratzinos, Clara Troncon, Paolo Checchia, Ph. Gavillet, S. Gamblin, Guillelmo Gomez-Ceballos, A. Deghorain, O. Klapp, T. L. Hessing, Andromachi Tsirou, L. Simard, L. Gorn, Andre Augustinus, José Salt, E. Higon, S. Tzamarias, N. I. Zimin, T. G M Malmgren, H. Wahlen, Maciej Górski, Theodora Papadopoulou, Ph. Schwemling, Louis Lyons, Klaus Moenig, Fabrizio Parodi, M. A. Houlden, S. Marti i Garcia, Krzysztof Nawrocki, F. Scuri, A. Kinvig, E. Ferrer-Ribas, Marek Szczekowski, H. Klein, Amelia Maio, Borut Paul Kerševan, Borge Svane Nielsen, K. Cieslik, O. Yushchenko, R. Sekulin, Tiziano Camporesi, J. MacNaughton, G. Barker, K. Osterberg, V. Nomokonov, T. Alderweireld, B. Franek, S. De Brabandere, G. Cosme, M. Trochimczuk, Josef Strauss, P. J. Holt, D. Rakoczy, Cristian Stanescu, P. Branchini, H. Schneider, T. Allmendinger, R. Paiva, M. Feindt, S. Sánchez Navas, N. G. Redaelli, P. V. Chliapnikov, J. J. Hernandez, Claire Bourdarios, P. Negri, M. Bonesini, V. Chabaud, M. Espirito Santo, Z. Krumstein, Marco Bozzo, Demetrios Loukas, R. Lauhakangas, J. M. Lopez, S. Haider, T. Moa, Krzysztof Doroba, Chiara Meroni, C. Vollmer, S. Paiano, A. De Min, P. Ferrari, D. Gamba, I. Lippi, Jean-Dominique Durand, K. H. Becks, E. Kriznic, G. Sajot, U. Flagmeyer, A. Tonazzo, Petar Adzic, G. Voulgaris, J. H. Wickens, E. Vallazza, Marco Paganoni, C. Caso, F. Verbeure, I. Gil, E. K. Johansson, N. Pukhaeva, J. E. Augustin, Anna Lipniacka, Peter Kluit, A. Zalewska, C. Walck, R. Reinhardt, V. Verzi, Z. Albrecht, Juan Fuster, P. Sponholz, Göran Jarlskog, B. Stugu, C. Weiser, F. Mazzucato, M. Gandelman, H. J. Grimm, A. Markou, Danilo Zavrtanik, Ch. Jarlskog, F. Glege, H. B. Crawley, R. Gokieli, U. Mjoernmark, N. Vassilopoulos, L. Vitale, W. D. Apel, Paul Baillon, Alexander Lincoln Read, R. Muresan, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, Georgios Fanourakis, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, Sofia Andringa, H. T. Phillips, B. Tome, P. Antilogus, F. Fulda-Quenzer, A. Normand, R. Barbier, P. Lutz, V. Malychev, G. Grosdidier, A. Sopczak, E. C. Katsoufis, G. Gopal, E. Graziani, Maarten Boonekamp, P. Delpierre, J. M. Brunet, L. De Paula, E. Falk, M. S. Bilenky, L. Di Ciaccio, L.N. Gerdyukov, L.J. Carroll, Tord Ekelof, N. N. Khovanski, P. Buschmann, B. Muryn, R. Mc Kay, G. Myatt, Fabio Cossutti, J. P. Laugier, J. Grahl, Norbert Neumeister, J. Libby, Ole Røhne, M. Pimenta, Igor Boyko, B. A. Khomenko, R. Keranen, Philippe Charpentier, Francisco Matorras, B. Loerstad, Francesco Navarria, I. Gonzalez Caballero, T. Lesiak, P. Langefeld, T. Buran, Markus Elsing, Klaus Hamacher, X. Moreau, J. M. Heuser, Oliver Passon, A. Miagkov, M. Nikolenko, Corinne Berat, Olga Botner, Christopher Parkes, Matteo Pegoraro, Patrick Jarry, G. Rinaudo, G. Transtromer, Carmen García, U. Mueller, E. I. Rosenberg, K. Kurvinen, D. Wicke, C. Martinez-Rivero, Reynald Pain, H. Foeth, B. Ueberschaer, W. Venus, A. De Angelis, P. Collins, Alessandra Romero, A. Ruiz, Daniel Bloch, Ahmimed Ouraou, S. Heising, M. A E Schyns, V. Vrba, I. Bozovic, R. Sosnowski, F. Naraghi, R. Nicolaidou, F. J. Harris, F. Terranova, J. Dolbeau, P. Bambade, P.S.L. Booth, E. Piotto, J. Masik, B. Bouquet, B. Jean-Marie, R. Orava, G. Eigen, Maria Elena Pol, S. Katsanevas, D. Y. Bardin, W. Da Silva, W. A. Mitaroff, W. K. Van Doninck, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, R. Chierici, F. Hahn, M. Regler, Yu. Sedykh, J. H. Cowell, I. A. Tyapkin, I. V. Ajinenko, N. Ghodbane, J. Drees, Evangelos Gazis, L. Chaussard, H. M. Blom, Y. Sacquin, Kathy Huet, Valeriy Pozdniakov, Per Jönsson, W. Bonivento, A. Malek, A. Sokolov, Marcos Dracos, A. Galloni, S. O. Holmgren, and G. D. Alekseev
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, 01 natural sciences, Particle identification, Ionization, 0103 physical sciences, Large Electron–Positron Collider, 010306 general physics, Cherenkov radiation
Abstract: DELPHI results are presented on the inclusive production of the neutral mesons ρ0, f0(980), f2(1270), KView the MathML source and f′2(1525) in hadronic Z0 decays. They are based on about 2 million multihadronic events collected in 1994 and 1995, using the particle identification capabilities of the DELPHI Ring Imaging Cherenkov detectors and measured ionization losses in the Time Projection Chamber. The total production rates per hadronic Z0 decay have been determined to be: 1.19±0.10 for ρ0; 0.164±0.021 for f0(980); 0.214±0.038 for f2(1270); 0.073±0.023 for KView the MathML source; and 0.012±0.006 for f′2(1525). The total production rates for all mesons and differential cross-sections for the ρ0, f0(980) and f2(1270) are compared with the results of other LEP experiments and with models.
Published: 1999
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18. Search for Leptoquarks and FCNC in e+e− annihilations at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, T. Aldeweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, P. Branchini, T. Brenke, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, G. Damgaard, M. Davenport, W. Da Silva, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Fenyuk, P. Ferrari, A. Ferrer, E. Ferrer-Ribas, S. Fichet, A. Firestone, P.-A. Fischer, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, C. Green, H-J. Grimm, P. Gris, K. Grzelak, M. Gunther, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, M. Koratzinos, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, E. Kriznic, J. Krstic, Z. Krumstein, P. Kubinec, W. Kucewicz, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, M. Lokajicek, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, J. Mazik, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nikolenko, V. Nomokonov, A. Normand, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, H. Schneider, Ph. Schwemling, U. Schwickerath, M.A.E. Schyns, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, R. Sekulin, R.C. Shellard, A. Sheridan, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, D. Stampfer, C. Stanescu, S. Stanic, S. Stapnes, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, F. Tegenfeldt, F. Terranova, J. Thomas, A. Tilquin, J. Timmermans, N. Tinti, L.G. Tkatchev, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, I. Van Vulpen, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, C. Vollmer, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, G.C. Zucchelli, and G. Zumerle
Subjects: Semileptonic decay, Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Flavour, Scalar (mathematics), Charge (physics), Jet (particle physics), 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, Leptoquark, 010306 general physics, Lepton
Abstract: A search for events with one jet and at most one isolated lepton used data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of 183 GeV and correspond to an integrated luminosity of 47.7 1/pb. Production of single scalar and vector leptoquarks was searched for. Limits at 95% confidence level were derived on the masses (ranging from $134 GeV/c^2$ to $171 GeV/c^2$ for electromagnetic type couplings) and couplings of the leptoquark states.A search for top-charm flavour changing neutral currents($e^+ e^- \to \bar t c$ or charge conjugate) used the semileptonic decay channel. A limit on the flavour changing cross-section via neutral currents was set at 0.55pb (95% confidence level).
Published: 1999
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19. Search for charginos, neutralinos and gravitinos in e+e− interactions at GeV

Author: V. Nomokonov, C. Vollmer, Stanislav Nemecek, N. Pukhaeva, V. Verzi, C. Vander Velde, G. A. Chelkov, Ugo Amaldi, W. De Boer, E. Zevgolatakos, A. W. Borgland, Richard Brenner, P. Abreu, J. Garcia, W. Da Silva, V. Obraztsov, F. Tegenfeldt, P. Gris, Tiziano Camporesi, J. J. Hernandez, J. E. Augustin, S. Cabrera, C. Gaspar, Pierre Juillot, E. Boudinov, M. Verlato, L.N. Gerdyukov, Oxana Smirnova, K. Karafasoulis, I. Gonzalez Caballero, N. Tinti, M. L. Turluer, D. Reid, D. J. Holthuizen, P. J. Holt, N. G. Redaelli, Tord Ekelof, F. Simonetto, P. Delpierre, E. G. Anassontzis, J. P. Engel, P. Bambade, A. Normand, G. C. Zucchelli, M. Berggren, Marco Bozzo, F. Kapusta, M. V. Castillo Gimenez, T. J. V. Bowcock, Christophe Royon, N. Neufeld, B. Loerstad, U. Mjoernmark, Jelena Krstic, Paolo Morettini, K. Stevenson, Y. Belokopytov, T. L. Hessing, G. W. Van Apeldoorn, G. Leder, T. Buran, Markus Elsing, B. Tome, P. Antilogus, O.M. Kouznetsov, G. Orazi, J. G. Loken, P. Beilliere, G. Damgaard, V. Lepeltier, S. Hoorelbeke, Gianni Zumerle, A. Galloni, Paolo Ronchese, A. Kiiskinen, A. G. Frodesen, M. Gaspar, G. Myatt, B. Åsman, M. Siebel, B. Golob, J. H. Cowell, S. O. Holmgren, D. Bertini, P. Poropat, H. T. Phillips, Andromachi Tsirou, Klaus Hamacher, Paolo Checchia, N. J. Kjaer, K. Muenich, Oliver Passon, L. Ventura, A. Miagkov, R. Paiva, Ph. Gavillet, Sandra Amato, Luca Tortora, T. Myklebust, L. S. Vertogradov, V. Gracco, Borut Paul Kerševan, Petar Adzic, R. Jacobsson, S. Todorova, T. Podobnik, S. Gamblin, Winfried Mitaroff, Krzysztof Nawrocki, P. Andersson, V. Lefebure, D. Crennell, Andre Augustinus, P. Herquet, T. Aldeweireld, I. A. Tyapkin, Matteo Pegoraro, Patrick Jarry, G. Barker, G. Rinaudo, J. Salt, Ugo Gasparini, E. C. Katsoufis, G. Gopal, S. Tzamarias, N. I. Zimin, F. Mandl, D. Bertrand, P. Seager, Klaus Moenig, Fabrizio Parodi, R. Contri, Jiri Chudoba, Maarten Boonekamp, M. A. Houlden, S. Marti i Garcia, C. Green, Claire Bourdarios, L. De Paula, I. V. Ajinenko, Maciej Górski, Christine Kourkoumelis, L. Di Ciaccio, Louis Lyons, Paulo J. S. Gonçalves, P. Van Dam, Piotr Zalewski, Corinne Berat, Olga Botner, G. Borisov, E. Falk, N. N. Khovanski, R. Pain, C. Walck, Wolfgang Adam, G. Tristram, S. Squarcia, H. Saarikko, E. Cortina, J. M. Heuser, T. Burgsmueller, U. Mueller, W. K. Van Doninck, F. Richard, R. Reinhardt, P. Roudeau, P. Kubinec, T. Tabarelli, P. Chochula, C. Matteuzzi, J. P. Laugier, G. Smadja, Y. Arnoud, S. Almehed, G. Transtromer, E. I. Rosenberg, R. Chierici, Carmen García, Clara Troncon, J. Van Eldik, F. Hahn, V. Chorowicz, V.A. Uvarov, R. Lopez-Fernandez, R. C. Shellard, Josef Hrubec, Manolis Dris, K. Kurvinen, D. Wicke, J. Libby, Ole Røhne, C. Weiser, M. Nikolenko, M. Trochimczuk, C. Kreuter, M. Pimenta, P. Buschmann, B. Muryn, B. A. Khomenko, O. Solovianov, Guido Barbiellini, J. W. Lamsa, Natale Demaria, R. Mc Kay, H. Rahmani, P. V. Chliapnikov, A. Stocchi, Francesco Navarria, D. Rakoczy, A. Tilquin, Josef Strauss, A. M. Segar, C. Martinez-Rivero, P. Langefeld, M. Bonesini, J. Guy, G. Cosme, Ariella Cattai, S. Fichet, A. Passeri, Alberto Benvenuti, J. N. Jackson, Pawel Jalocha, Barry King, F. Barao, Demetrios Loukas, E. Spiriti, V. Chabaud, M. Espirito Santo, A. Deghorain, E. Ferrer-Ribas, S. Haider, P. B. Renton, S. Stanic, Tim Adye, F. Ledroit, J. Fuster, Jacques Lemonne, Andrea Perrotta, P. Kokkinias, W. Venus, G. Vegni, R. Frühwirth, P. Bruckman, D. Stampfer, J. Timmermans, C. Caso, O. Ullaland, B. Marechal, Marta Calvi, G. Valenti, R. Lauhakangas, F. Fontanelli, J. Palacios, J. Grahl, G. D. Alekseev, J. D. Durand, Mariusz Witek, M. Gunther, H. J. Grimm, Attilio Andreazza, Geoffrey Smith, D. Fassouliotis, H. B. Crawley, Toralf Bernhard Skaali, E. Higon, A. Tonazzo, A. G. Olshevski, O. Klapp, Rupert Leitner, F. Scuri, Wojciech Kucewicz, E. Kriznic, F. Pierre, B. Jean-Marie, Mario Sannino, M. Baubillier, Borge Svane Nielsen, G. Matthiae, S. De Brabandere, U. Schwickerath, V. Canale, D. Gamba, Krzysztof Doroba, Chiara Meroni, Vincent Hedberg, M. A. Bizouard, F. Fulda-Quenzer, R. Keranen, M. Mc Cubbin, B. Franek, I. van Vulpen, H. M. Blom, D. W. Lane, A. Zalewska, Peter Kluit, K. Hultqvist, R. Mc Nulty, Philippe Charpentier, Francisco Matorras, E. Graziani, F. Mazzucato, Rafael Marco, T. Spassov, A. N. Sisakian, A. Maio, G. Ekspong, Danilo Zavrtanik, Alexander Vodopyanov, Y. Sacquin, J. M. Brunet, Vaclav Vrba, H. Foeth, Maria Roberta Monge, T. Allmendinger, G. Voulgaris, M. S. Bilenky, Hans Dijkstra, F. Bianchi, A. Sadovsky, V. Ruhlmann-Kleider, J-C. Marin, B. Erzen, R. Gokieli, R. Muresan, W. T. Meyer, L.J. Carroll, B. Ueberschaer, A. Sheridan, P. N. Ratoff, Gunter Wolf, Sofia Andringa, Mattias Ellert, M. Begalli, J. M. Lopez, P. A. Fischer, L. Bugge, Dimos Sampsonidis, B. Bouquet, J. H. Lopes, U. Parzefall, A. Firestone, Kathy Huet, Valeriy Pozdniakov, R. Alemany, Phillip Allport, A. De Angelis, D. Vilanova, P. Collins, A. J. Camacho Rozas, J. Cuevas Maestro, G. Della Ricca, L. Gorn, P. Rebecchi, X. Moreau, Laurent Mirabito, Stefano Ragazzi, Fabio Cossutti, D. Z. Toet, F. Verbeure, Denis Gelé, Daniel Bloch, H. Palka, Morgan Lethuillier, M. Davenport, Guillelmo Gomez-Ceballos, Ahmimed Ouraou, G. Morton, Paolo Privitera, Theodora Papadopoulou, M. Mazzucato, J. R. Mahon, Igor Boyko, A. Duperrin, R. Orava, C. Mulet-Marquis, T. Lesiak, G. J. Hughes, S. Heising, A. Ferrer, R. Janik, Chiara Mariotti, Cristian Stanescu, P. Branchini, Martijn Mulders, Per Jönsson, I. Lippi, Paul Baillon, Alexander Lincoln Read, H. Schneider, J. H. Wickens, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, Marco Paganoni, Guy Wilkinson, C. Bosio, T. Brenke, J. Yi, M. Battaglia, S. Hahn, Francesca Romana Cavallo, Juergen Thomas, L. Vitale, Martino Margoni, E. Fokitis, Antonios Leisos, D. Radojicic, E. K. Johansson, G. Eigen, I. Gil, Georgios Fanourakis, N. Neumeister, Steinar Stapnes, K. Grzelak, A. Van Lysebetten, Sandor Czellar, N. Vassilopoulos, Manfred Krammer, V. V. Lapin, Allan Hallgren, P. Lutz, W. Bonivento, G. Polok, Antonio Baroncelli, B. Stugu, C. De Clercq, W. J. Murray, Yu. Gouz, V. Malychev, R. Strub, Nikolaos P. Mastroyiannopoulos, M. Gandelman, A. Malek, A. Sokolov, Marcos Dracos, N. Ghodbane, T. G M Malmgren, J. Dolbeau, H. Wahlen, J. Drees, Evangelos Gazis, L. Chaussard, P.S.L. Booth, Luis Peralta, A. Pullia, K. H. Becks, E. Vallazza, Dietrich Liko, Chariclia Petridou, M. A. Winter, A. Petrolini, B. De Lotto, G. Crosetti, Evgueni Vlasov, G. Mc Pherson, H. Herr, L. G. Tkatchev, A. Nygren, Daniel Treille, M. Bigi, J. Ridky, C. Parkes, F. Carena, M. Pernicka, Marek Szczekowski, Jesus Marco, G. Lenzen, J. Mazik, F. Martinez-Vidal, V. Kostioukhine, M. Koratzinos, M. Feindt, S. Sánchez Navas, P. Negri, P. Ferrari, P. Sponholz, Göran Jarlskog, H. Klein, Ch. Jarlskog, F. Glege, W. D. Apel, K. Osterberg, Ph. Schwemling, O. Yushchenko, E. Piotto, R. Sekulin, Maria Elena Pol, T. Moa, S. Katsanevas, A. Sopczak, D. Y. Bardin, M. Regler, P. Rosinsky, R. Moeller, L. K. Resvanis, Massimo Caccia, Antonio Onofre, A. Markou, L. Simard, L. Leinonen, Tiziano Rovelli, Z. Krumstein, S. Paiano, A. De Min, G. Sajot, U. Flagmeyer, Yu. Sedykh, Anna Lipniacka, Luc Pape, J. Kurowska, C. Joram, R. Barbier, I. Bozovic, R. Sosnowski, F. Naraghi, R. Nicolaidou, J. Fayot, Ernesto Migliore, Alessandra Romero, A. Ruiz, M. A E Schyns, F. J. Harris, F. Terranova, and A. Kinvig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Supergravity, Supersymmetry, 01 natural sciences, Lower limit, Nuclear physics, Chargino, 0103 physical sciences, Neutralino, Large Electron–Positron Collider, Gravitino, 010306 general physics
Abstract: An update of the searches for charginos and neutralinos is presented, based on a data sample corresponding to the 53.9 pb−1 recorded by the DELPHI detector in 1997, at a centre-of-mass energy of 183 GeV. No evidence for a signal was found. The lower mass limits are 4–5 GeV/c2 higher than those obtained at a centre-of-mass energy of 172 GeV. The (μ,M2) domain excluded by combining the neutralino and chargino searches implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 29.1 GeV/c2 for tanβ≥ 1.
Published: 1999
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20. Measurement of the e+e−→γγ(γ) cross section at the LEP energies

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, P. Andersson, A. Andreazza, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, O. Barring, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, K. Belous, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, P. Branchini, T. Brenke, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ch. Cerruti, V. Chabaud, M. Chapkin, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, P. Collins, M. Colomer, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, B. Dalmagne, G. Damgaard, M. Davenport, W. Da Silva, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, A. Di Diodato, A. Djannati, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, A. Duperrin, J-D. Durand, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Fenyuk, P. Ferrari, A. Ferrer, S. Fichet, A. Firestone, P.-A. Fischer, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, C. Green, A. Grefrath, P. Gris, G. Grosdidier, K. Grzelak, M. Gunther, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, F.J. Harris, V. Hedberg, S. Heising, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, D. Knoblauch, P. Kokkinias, A. Konopliannikov, M. Koratzinos, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, I. Kronkvist, J. Krstic, Z. Krumstein, P. Kubinec, W. Kucewicz, K. Kurvinen, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, K. Muenich, M. Mulders, C. Mulet-Marquis, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, M. Nikolenko, A. Normand, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, M. Pegoraro, L. Peralta, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, D. Rakoczy, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, H. Schneider, Ph. Schwemling, U. Schwickerath, M.A.E. Schyns, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, R. Sekulin, R.C. Shellard, A. Sheridan, R. Silvestre, L. Simard, F. Simonetto, A.N. Sisakian, T.B. Skaali, G. Smadja, O. Smirnova, G.R. Smith, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, D. Stampfer, C. Stanescu, S. Stanic, S. Stapnes, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, F. Tegenfeldt, F. Terranova, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, G.W. Van Apeldoorn, P. Van Dam, J. Van Eldik, A. Van Lysebetten, I. Van Vulpen, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, T. Wlodek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Coupling constant, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, 7. Clean energy, Upper and lower bounds, Lower limit, Gamma gamma, Nuclear physics, Excited state, 0103 physical sciences, Cutoff, 010306 general physics
Abstract: The total and the differential cross sections for the reaction e+e− → γγ(γ) have been measured with the DELPHI detector at LEP using an integrated luminosity of 36.9 pb−1. The results agree with the QED predictions and consequently there is no evidence for non-standard channels with the same experimental signature. The lower limits obtained on the QED cutoff parameters are Λ+ > 143 GeV and Λ− > 120 GeV, and the lower bound on the mass of an excited electron with an effective coupling constant λγ = 1 is 132 GeV/c2. Upper limits on the branching ratios for the decays Z0 → γγ, Z0 → π0γ, Z0 → ηγ and Z0 → γγγ have been determined to be 5.5 × 10−5, 5.5 × 10−5, 8.0 × 10−5, and 1.7 × 10−5 respectively. All the limits are at the 95% confidence level.
Published: 1998
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21. Search for Bs0- oscillations

Author: W Adam, T Adye, I Ajinenko, G.D Alekseev, R Alemany, P.P Allport, S Almehed, U Amaldi, S Amato, P Andersson, A Andreazza, P Antilogus, W-D Apel, Y Arnoud, B Åsman, J-E Augustin, A Augustinus, P Baillon, P Bambade, F Barao, M Barbi, D.Y Bardin, G Barker, A Baroncelli, O Barring, M.J Bates, M Battaglia, M Baubillier, J Baudot, K-H Becks, M Begalli, P Beilliere, Yu Belokopytov, K Belous, A.C Benvenuti, C Berat, M Berggren, D Bertini, D Bertrand, M Besancon, F Bianchi, M Bigi, M.S Bilenky, P Billoir, M-A Bizouard, D Bloch, M Blume, M Bonesini, W Bonivento, M Boonekamp, P.S.L Booth, A.W Borgland, G Borisov, C Bosio, O Botner, E Boudinov, B Bouquet, C Bourdarios, T.J.V Bowcock, I Bozovic, M Bozzo, P Branchini, K.D Brand, T Brenke, R.A Brenner, R.C.A Brown, P Bruckman, J-M Brunet, L Bugge, T Buran, T Burgsmueller, P Buschmann, S Cabrera, M Caccia, M Calvi, A.J.Camacho Rozas, T Camporesi, V Canale, M Canepa, F Carena, L Carroll, C Caso, M.V.Castillo Gimenez, A Cattai, F.R Cavallo, V Chabaud, M Chapkin, Ph Charpentier, L Chaussard, P Checchia, G.A Chelkov, M Chen, R Chierici, P Chliapnikov, P Chochula, V Chorowicz, J Chudoba, V Cindro, P Collins, M Colomer, R Contri, E Cortina, G Cosme, F Cossutti, J-H Cowell, H.B Crawley, D Crennell, G Crosetti, J.Cuevas Maestro, S Czellar, J Dahm, B Dalmagne, G Damgaard, P.D Dauncey, M Davenport, W Da Silva, A Deghorain, G.Della Ricca, P Delpierre, N Demaria, A De Angelis, W De Boer, S De Brabandere, C De Clercq, C De La Vaissiere, B De Lotto, A De Min, L De Paula, H Dijkstra, L Di Ciaccio, A Di Diodato, A Djannati, J Dolbeau, K Doroba, M Dracos, J Drees, K.-A Drees, M Dris, J-D Durand, D Edsall, R Ehret, G Eigen, T Ekelof, G Ekspong, M Elsing, J-P Engel, B Erzen, M.Espirito Santo, E Falk, G Fanourakis, D Fassouliotis, M Feindt, P Ferrari, A Ferrer, S Fichet, T.A Filippas, A Firestone, P.-A Fischer, H Foeth, E Fokitis, F Fontanelli, F Formenti, B Franek, A.G Frodesen, R Fruhwirth, F Fulda-Quenzer, J Fuster, A Galloni, D Gamba, M Gandelman, C Garcia, J Garcia, C Gaspar, U Gasparini, Ph Gavillet, E.N Gazis, D Gele, J-P Gerber, L Gerdyukov, R Gokieli, B Golob, P Goncalves, G Gopal, L Gorn, M Gorski, Yu Gouz, V Gracco, E Graziani, C Green, A Grefrath, P Gris, G Grosdidier, K Grzelak, M Gunther, J Guy, F Hahn, S Hahn, Z Hajduk, A Hallgren, K Hamacher, F.J Harris, V Hedberg, R Henriques, J.J Hernandez, P Herquet, H Herr, T.L Hessing, J.-M Heuser, E Higon, S-O Holmgren, P.J Holt, D Holthuizen, S Hoorelbeke, M Houlden, J Hrubec, K Huet, K Hultqvist, J.N Jackson, R Jacobsson, P Jalocha, R Janik, Ch Jarlskog, G Jarlskog, P Jarry, B Jean-Marie, E.K Johansson, L Jonsson, P Jonsson, C Joram, P Juillot, M Kaiser, F Kapusta, K Karafasoulis, E Karvelas, S Katsanevas, E.C Katsoufis, R Keranen, Yu Khokhlov, B.A Khomenko, N.N Khovanski, B King, N.J Kjaer, O Klapp, H Klein, P Kluit, D Knoblauch, B Koene, P Kokkinias, M Koratzinos, K Korcyl, V Kostioukhine, C Kourkoumelis, O Kouznetsov, M Krammer, C Kreuter, I Kronkvist, Z Krumstein, W Krupinski, P Kubinec, W Kucewicz, K Kurvinen, C Lacasta, I Laktineh, J.W Lamsa, L Lanceri, D.W Lane, P Langefeld, J-P Laugier, R Lauhakangas, G Leder, F Ledroit, V Lefebure, C.K Legan, A Leisos, R Leitner, J Lemonne, G Lenzen, V Lepeltier, T Lesiak, M Lethuillier, J Libby, D Liko, A Lipniacka, I Lippi, B Loerstad, J.G Loken, J.M Lopez, D Loukas, P Lutz, L Lyons, J MacNaughton, G Maehlum, J.R Mahon, A Maio, T.G.M Malmgren, V Malychev, F Mandl, J Marco, R Marco, B Marechal, M Margoni, J-C Marin, C Mariotti, A Markou, C Martinez-Rivero, F Martinez-Vidal, S Marti i Garcia, J Masik, F Matorras, C Matteuzzi, G Matthiae, M Mazzucato, M Mc Cubbin, R Mc Kay, R Mc Nulty, G Mc Pherson, J Medbo, M Merk, C Meroni, S Meyer, W.T Meyer, M Michelotto, E Migliore, L Mirabito, W.A Mitaroff, U Mjoernmark, T Moa, R Moeller, K Moenig, M.R Monge, P Morettini, H Mueller, K Muenich, M Mulders, L.M Mundim, W.J Murray, B Muryn, G Myatt, T Myklebust, F Naraghi, F.L Navarria, S Navas, K Nawrocki, P Negri, S Nemecek, W Neumann, N Neumeister, R Nicolaidou, B.S Nielsen, M Nieuwenhuizen, V Nikolaenko, M Nikolenko, P Niss, A Nomerotski, A Normand, A Nygren, W Oberschulte-Beckmann, V Obraztsov, A.G Olshevski, A Onofre, R Orava, G Orazi, S Ortuno, K Osterberg, A Ouraou, P Paganini, M Paganoni, S Paiano, R Pain, H Palka, Th.D Papadopoulou, K Papageorgiou, L Pape, C Parkes, F Parodi, U Parzefall, A Passeri, M Pegoraro, L Peralta, H Pernegger, M Pernicka, A Perrotta, C Petridou, A Petrolini, H.T Phillips, G Piana, F Pierre, M Pimenta, E Piotto, T Podobnik, O Podobrin, M.E Pol, G Polok, P Poropat, V Pozdniakov, P Privitera, N Pukhaeva, A Pullia, D Radojicic, S Ragazzi, H Rahmani, P.N Ratoff, A.L Read, M Reale, P Rebecchi, N.G Redaelli, M Regler, D Reid, R Reinhardt, P.B Renton, L.K Resvanis, F Richard, J Ridky, G Rinaudo, O Rohne, A Romero, P Ronchese, L Roos, E.I Rosenberg, P Rosinsky, P Roudeau, T Rovelli, W Ruckstuhl, V Ruhlmann-Kleider, A Ruiz, K Rybicki, H Saarikko, Y Sacquin, A Sadovsky, G Sajot, J Salt, M Sannino, H Schneider, U Schwickerath, M.A.E Schyns, G Sciolla, F Scuri, P Seager, Y Sedykh, A.M Segar, A Seitz, R Sekulin, L Serbelloni, R.C Shellard, A Sheridan, I Siccama, P Siegrist, R Silvestre, F Simonetto, A.N Sisakian, T.B Skaali, G Smadja, N Smirnov, O Smirnova, G.R Smith, O Solovianov, R Sosnowski, D Souza-Santos, T Spassov, E Spiriti, P Sponholz, S Squarcia, D Stampfer, C Stanescu, S Stanic, S Stapnes, I Stavitski, K Stevenson, A Stocchi, J Strauss, R Strub, B Stugu, M Szczekowski, M Szeptycka, T Tabarelli, J.P Tavernet, O Tchikilev, F Tegenfeldt, F Terranova, J Thomas, A Tilquin, J Timmermans, L.G Tkatchev, T Todorov, S Todorova, D.Z Toet, A Tomaradze, B Tome, A Tonazzo, L Tortora, G Transtromer, D Treille, G Tristram, A Trombini, C Troncon, A Tsirou, M-L Turluer, I.A Tyapkin, M Tyndel, S Tzamarias, B Ueberschaer, O Ullaland, V Uvarov, G Valenti, E Vallazza, G.W Van Apeldoorn, P Van Dam, J Van Eldik, A Van Lysebetten, N Vassilopoulos, G Vegni, L Ventura, W Venus, F Verbeure, M Verlato, L.S Vertogradov, D Vilanova, P Vincent, L Vitale, E Vlasov, A.S Vodopyanov, V Vrba, H Wahlen, C Walck, F Waldner, C Weiser, A.M Wetherell, D Wicke, J.H Wickens, M Wielers, G.R Wilkinson, W.S.C Williams, M Winter, M Witek, T Wlodek, J Yi, K Yip, O Yushchenko, F Zach, A Zaitsev, A Zalewska, P Zalewski, D Zavrtanik, E Zevgolatakos, N.I Zimin, G.C Zucchelli, and G Zumerle
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Bar (music), Large Electron–Positron Collider
Published: 1997
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22. Search for stable heavy charged particles in e+e− collisions at , 161 and 172 GeV

Author: P. Abreu, W. Adam, T. Adye, I. Ajinenko, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, A. Andreazza, M.L. Andrieux, P. Antilogus, W-D. Apel, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, M. Barbi, G. Barbiellini, D.Y. Bardin, G. Barker, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, K. Belous, A.C. Benvenuti, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, M-A. Bizouard, D. Bloch, M. Blume, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, P. Branchini, K.D. Brand, T. Brenke, R.A. Brenner, C. Bricman, R.C.A. Brown, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, V. Cindro, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, P.D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, A. Di Diodato, F. Djama, A. Djannati, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, J-D. Durand, D. Edsall, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Fenyuk, A. Ferrer, S. Fichet, T.A. Filippas, A. Firestone, P.-A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, L. Gerdyukov, R. Gokieli, B. Golob, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, E. Graziani, C. Green, A. Grefrath, P. Gris, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, Z. Hajduk, A. Hallgren, K. Hamacher, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, O. Klapp, H. Klein, A. Klovning, P. Kluit, P. Kokkinias, A. Konopliannikov, M. Koratzinos, K. Korcyl, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, C.K. Legan, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J. Libby, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, J.R. Mahon, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, M. Merk, C. Meroni, S. Meyer, W.T. Meyer, M. Michelotto, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, K. Muenich, M. Mulders, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, M. Novak, W. Oberschulte-Beckmann, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, R. Pain, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, T. Podobnik, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, A. Sadovsky, O. Sahr, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M.A.E. Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, A. Seitz, R. Sekulin, L. Serbelloni, R.C. Shellard, P. Siegrist, R. Silvestre, S. Simonetti, F. Simonetto, A.N. Sisakian, B. Sitar, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, O. Solovianov, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, D. Stampfer, C. Stanescu, S. Stanic, S. Stapnes, I. Stavitski, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J.P. Tavernet, E. Tcherniaev, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, M. Weierstall, P. Weilhammer, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, T. Wlodek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Time projection chamber, 010308 nuclear & particles physics, Electron–positron annihilation, Supersymmetry, 7. Clean energy, 01 natural sciences, Particle identification, Charged particle, Ring-imaging Cherenkov detector, Standard Model, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: A search for stable or long-lived heavy charged particles in e+e− interactions at energies of 130–136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The search is based on particle identification provided by the Time Projection Chamber and the Ring Imaging Cherenkov detector. Upper limits at 95% confidence level are derived on the cross-section for heavy long-lived pair-produced charge ±e and View the MathML source particles in the range of 0.4–2.3 pb for masses from 45 to 84 GeV/c2. Within supersymmetric extensions of the Standard Model, long-lived charginos with masses from 45 to 84 (80) GeV/c2 for high (low) sneutrino masses can be excluded at 95% confidence level. Left-handed (right-handed) long-lived or stable smuons and staus with masses between 45 and 68 (65) GeV/c2 can be excluded at 95% confidence level.
Published: 1997
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23. Search for excited leptons in e+e− collisions at

Author: P. Abreu, W. Adam, T. Adye, I. Ajinenko, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, A. Andreazza, M.L. Andrieux, P. Antilogus, W-D. Apel, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, M. Barbi, D.Y. Bardin, G. Barker, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, K. Belous, A.C. Benvenuti, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, M-A. Bizouard, D. Bloch, M. Blume, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, P. Branchini, K.D. Brand, T. Brenke, R.A. Brenner, C. Bricman, R.C.A. Brown, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, J. Chodoba, V. Chorowicz, V. Cindro, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dann, G. Damgaard, P.D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, A. Di Diodato, F. Djama, A. Djannati, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, J-D. Durand, D. Edsall, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Ferrer, S. Fichet, T.A. Filippas, A. Firestone, P.-A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, L. Gerdyukov, R. Gokieli, B. Golob, C. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, E. Graziani, C. Green, A. Grefrath, P. Gris, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, Z. Hajduk, A. Hallgren, K. Hamacher, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, O. Klapp, H. Klein, A. Klovning, P. Kluit, P. Kokkinias, A. Konopliannikov, M. Koratzinos, K. Korcyl, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, C.K. Legan, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J. Libby, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, J.R. Mahon, A. Maio, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, M. Merk, C. Meroni, S. Meyer, W.T. Meyer, M. Michelotto, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, K. Muenich, M. Mulders, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, W. Oberschulte-Beckmann, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, R. Pain, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, T. Podobnik, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, A. Sadovsky, O. Sahr, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M.A.E. Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, A. Seitz, R. Sekulin, L. Serbelloni, R.C. Shellard, P. Siegrist, R. Silvestre, S. Simonetti, F. Simonetto, A.N. Sisakian, B. Sitar, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, D. Stampfer, C. Stanescu, S. Stanic, S. Stapnes, I. Stavitski, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J.P. Tavernet, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, F. Waldner, M. Weierstall, P. Weilhammer, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, T. Wlodek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Coupling, Nuclear and High Energy Physics, Particle physics, Missing energy, Luminosity (scattering theory), Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Electron, HERA, 01 natural sciences, 7. Clean energy, Luminosity, Nuclear physics, Pair production, Excited state, 0103 physical sciences, Computer Science::Mathematical Software, High Energy Physics::Experiment, Neutrino, 010306 general physics, Boson, Lepton
Abstract: We have searched for excited states of charged and neutral leptons, e∗, μ ∗ , τ ∗ and ν ∗ , in e+e− collisions at s =130 using the OPAL detector at LEP. No evidence for their existence was found. With the most common coupling assumptions, the final states from excited lepton pair production include l+l−γγ and l+l−WW (with the subsequent decay of the virtual W bosons). From the analysis of these final states, 95% confidence level lower mass limits of 66.5 GeV for e∗, 66.8 GeV for μ ∗ , 65.3 GeV for τ ∗ , 66.2 GeV for ν e ∗ , 66.5 GeV for ν μ ∗ and 64.7 GeV for ν τ ∗ are inferred. From the analysis of γγ final states with missing energy and using alternative coupling assignments which permit photonic ν ∗ decays, a 95% confidence level lower mass limit of 65.0 GeV for each ν ∗ flavour is inferred. From the analysis of the l+l−γ, acoplanar lepton pair, and single γ final states expected from excited lepton single production, upper limits on f Λ (ratio of the coupling to the compositeness scale) are determined for excited lepton masses up to the kinematic limit.
Published: 1997
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24. Search for neutralinos, scalar leptons and scalar quarks in e+e− interactions at

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, P. Andersson, A. Andreazza, M.L. Andrieux, P. Antilogus, W-D. Apel, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, M. Barbi, D.Y. Bardin, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, A.C. Benvenuti, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, D. Bloch, M. Blume, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, P. Branchini, K.D. Brand, T. Brenke, R.A. Brenner, C. Bricman, R.C.A. Brown, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, A. Buys, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, P.D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, A. Di Diodato, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, J-D. Durand, D. Edsall, R. Ehret, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Ferrer, S. Fichet, T.A. Filippas, A. Firestone, P.-A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, R. Gokieli, B. Golob, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, E. Graziani, C. Green, A. Grefrath, P. Gris, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, Z. Hajduk, A. Hallgren, K. Hamacher, W. Hao, F.J. Harris, V. Hedberg, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, O. Klapp, H. Klein, A. Klovning, P. Kluit, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, C.K. Legan, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J. Libby, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, J.R. Mahon, A. Maio, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, M. Merk, C. Meroni, S. Meyer, W.T. Meyer, A. Miagkov, M. Michelotto, E. Migliore, L. Mirabito, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, W. Oberschulte-Beckmann, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, R. Pain, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, M. Petrovyck, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, A. Sadovsky, O. Sahr, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M.A.E. Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, A. Seitz, R. Sekulin, L. Serbelloni, R.C. Shellard, I. Siccama, P. Siegrist, R. Silvestre, S. Simonetti, F. Simonetto, A.N. Sisakian, B. Sitar, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stapnes, I. Stavitski, K. Stevenson, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J.P. Tavernet, E. Tcherniaev, O. Tchikilev, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, W. Trischuk, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, J. Van Eldik, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, F. Waldner, M. Weierstall, P. Weilhammer, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear physics, Quark, Nuclear and High Energy Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, High Energy Physics::Phenomenology, Scalar (physics), High Energy Physics::Experiment, Supersymmetry, Lepton
Abstract: Using data accumulated by DELPHI during the November 1995 LEP run at 130–136 GeV, searchs have been made for events with jets or leptons in conjunction with missing momentum. The results are interpreted in terms of limits on the production of neutralinos, scalar leptons, and scalar quarks.
Published: 1996
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25. Search for the lightest chargino at GeV

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, R. Aleksan, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, A. Andreazza, M.L. Andrieux, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, M. Barbi, D.Y. Bardin, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, K. Belous, A.C. Benvenuti, M. Berggren, D. Bertini, D. Bertrand, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, D. Bloch, M. Blume, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, P. Branchini, K.D. Brand, T. Brenke, R.A. Brenner, C. Bricman, R.C.A. Brown, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, A. Buys, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, P.D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, J-D. Durand, D. Edsall, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Ferrer, S. Fichet, T.A. Filippas, A. Firestone, P.-A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, M. Gibbs, R. Gokieli, B. Golob, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, E. Graziani, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, Z. Hajduk, A. Hallgren, K. Hamacher, W. Hao, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, A. Klovning, P. Kluit, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, P.-H. Kramer, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, V. Lapin, I. Last, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, C.K. Legan, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J. Libby, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, A. Maio, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, T. Maron, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, M. Merk, C. Meroni, S. Meyer, W.T. Meyer, M. Michelotto, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, M. Novak, W. Oberschulte-Beckmann, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, R. Pain, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, M. Petrovyck, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, M. Prest, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, A. Sadovsky, O. Sahr, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M.A.E. Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, A. Seitz, R. Sekulin, L. Serbelloni, R.C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, F. Simonetto, A.N. Sisakian, B. Sitar, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stapnes, I. Stavitski, K. Stevenson, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J.P. Tavernet, E. Tcherniaev, O. Tchikilev, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, W. Trischuk, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, J. Van Eldik, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, F. Waldner, M. Weierstall, P. Weilhammer, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Missing energy, Pair production, Chargino, Electron–positron annihilation, Root (chord), Supersymmetry, Minimal Supersymmetric Standard Model, Standard Model
Abstract: A search for pair production of the lightest chargino at root-s = 130.4 and 136.3 GeV has been carried out using the data sample corresponding to the 5.92 pb(-1) recorded by the DELPHI detector dur ...
Published: 1996
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26. Search for anomalous production of single photons at and 136 GeV

Author: W Adam, T Adye, E Agasi, I Ajinenko, R Aleksan, G.D Alekseev, R Alemany, P.P Allport, S Almehed, U Amaldi, S Amato, A Andreazza, M.L Andrieux, P Antilogus, W-D Apel, Y Arnoud, B Åsman, J-E Augustin, A Augustinus, P Baillon, P Bambade, F Barao, R Barate, M Barbi, G Barbiellini, D.Y Bardin, A Baroncelli, O Barring, J.A Barrio, W Bartl, M.J Bates, M Battaglia, M Baubillier, J Baudot, K-H Becks, M Begalli, P Beilliere, Yu Belokopytov, K Belous, A.C Benvenuti, M Berggren, D Bertini, D Bertrand, F Bianchi, M Bigi, M.S Bilenky, P Billoir, D Bloch, M Blume, T Bolognese, M Bonesini, W Bonivento, P.S.L Booth, C Bosio, O Botner, E Boudinov, B Bouquet, C Bourdarios, T.J.V Bowcock, M Bozzo, P Branchini, K.D Brand, T Brenke, R.A Brenner, C Bricman, R.C.A Brown, P Bruckman, J-M Brunet, L Bugge, T Buran, T Burgsmueller, P Buschmann, A Buys, S Cabrera, M Caccia, M Calvi, A.J Camacho Rozas, T Camporesi, V Canale, M Canepa, K Cankocak, F Cao, F Carena, L Carroll, C Caso, M.V Castillo Gimenez, A Cattai, F.R Cavallo, V Chabaud, Ph Charpentier, L Chaussard, J Chauveau, P Checchia, G.A Chelkov, M Chen, R Chierici, P Chliapnikov, P Chochula, V Chorowicz, V Cindro, P Collins, J.L Contreras, R Contri, E Cortina, G Cosme, F Cossutti, H.B Crawley, D Crennell, G Crosetti, J Cuevas Maestro, S Czellar, E Dahl-Jensen, J Dahm, B Dalmagne, M Dam, G Damgaard, P.D Dauncey, M Davenport, W Da Silva, C Defoix, A Deghorain, G Della Ricca, P Delpierre, N Demaria, A De Angelis, W De Boer, S De Brabandere, C De Clercq, C De La Vaissiere, B De Lotto, A De Min, L De Paula, C De Saint-Jean, H Dijkstra, L Di Ciaccio, F Djama, J Dolbeau, M Donszelmann, K Doroba, M Dracos, J Drees, K.-A Drees, M Dris, J-D Durand, D Edsall, R Ehret, G Eigen, T Ekelof, G Ekspong, M Elsing, J-P Engel, B Erzen, M Espirito Santo, E Falk, D Fassouliotis, M Feindt, A Fenyuk, A Ferrer, S Fichet, T.A Filippas, A Firestone, P.-A Fischer, H Foeth, E Fokitis, F Fontanelli, F Formenti, B Franek, P Frenkiel, D.C Fries, A.G Frodesen, R Fruhwirth, F Fulda-Quenzer, J Fuster, A Galloni, D Gamba, M Gandelman, C Garcia, J Garcia, C Gaspar, U Gasparini, Ph Gavillet, E.N Gazis, D Gele, J-P Gerber, M Gibbs, R Gokieli, B Golob, G Gopal, L Gorn, M Gorski, Yu Gouz, V Gracco, E Graziani, G Grosdidier, K Grzelak, S Gumenyuk, P Gunnarsson, M Gunther, J Guy, F Hahn, S Hahn, Z Hajduk, A Hallgren, K Hamacher, W Hao, F.J Harris, V Hedberg, R Henriques, J.J Hernandez, P Herquet, H Herr, T.L Hessing, E Higon, H.J Hilke, T.S Hill, S-O Holmgren, P.J Holt, D Holthuizen, S Hoorelbeke, M Houlden, J Hrubec, K Huet, K Hultqvist, J.N Jackson, R Jacobsson, P Jalocha, R Janik, Ch Jarlskog, G Jarlskog, P Jarry, B Jean-Marie, E.K Johansson, L Jonsson, P Jonsson, C Joram, P Juillot, M Kaiser, F Kapusta, K Karafasoulis, M Karlsson, E Karvelas, S Katsanevas, E.C Katsoufis, R Keranen, Yu Khokhlov, B.A Khomenko, N.N Khovanski, B King, N.J Kjaer, H Klein, A Klovning, P Kluit, B Koene, P Kokkinias, M Koratzinos, K Korcyl, V Kostioukhine, C Kourkoumelis, O Kouznetsov, P.-H Kramer, M Krammer, C Kreuter, I Kronkvist, Z Krumstein, W Krupinski, P Kubinec, W Kucewicz, K Kurvinen, C Lacasta, I Laktineh, S Lamblot, J.W Lamsa, L Lanceri, D.W Lane, P Langefeld, V Lapin, I Last, J-P Laugier, R Lauhakangas, G Leder, F Ledroit, V Lefebure, C.K Legan, R Leitner, Y Lemoigne, J Lemonne, G Lenzen, V Lepeltier, T Lesiak, J Libby, D Liko, R Lindner, A Lipniacka, I Lippi, B Loerstad, J.G Loken, J.M Lopez, D Loukas, P Lutz, L Lyons, J MacNaughton, G Maehlum, A Maio, V Malychev, J Marco, R Marco, B Marechal, M Margoni, J-C Marin, C Mariotti, A Markou, T Maron, C Martinez-Rivero, F Martinez-Vidal, S Marti i Garcia, F Matorras, C Matteuzzi, G Matthiae, M Mazzucato, M Mc Cubbin, R Mc Kay, R Mc Nulty, J Medbo, M Merk, C Meroni, S Meyer, W.T Meyer, A Miagkov, M Michelotto, E Migliore, L Mirabito, W.A Mitaroff, U Mjoernmark, T Moa, R Moeller, K Moenig, M.R Monge, P Morettini, H Mueller, L.M Mundim, W.J Murray, B Muryn, G Myatt, F Naraghi, F.L Navarria, S Navas, K Nawrocki, P Negri, S Nemecek, W Neumann, N Neumeister, R Nicolaidou, B.S Nielsen, M Nieuwenhuizen, V Nikolaenko, P Niss, A Nomerotski, A Normand, M Novak, W Oberschulte-Beckmann, V Obraztsov, A.G Olshevski, A Onofre, R Orava, K Osterberg, A Ouraou, P Paganini, M Paganoni, P Pages, H Palka, Th.D Papadopoulou, K Papageorgiou, L Pape, C Parkes, F Parodi, A Passeri, M Pegoraro, L Peralta, H Pernegger, M Pernicka, A Perrotta, C Petridou, A Petrolini, M Petrovyck, H.T Phillips, G Piana, F Pierre, M Pimenta, M Pindo, S Plaszczynski, O Podobrin, M.E Pol, G Polok, P Poropat, V Pozdniakov, M Prest, P Privitera, N Pukhaeva, A Pullia, D Radojicic, S Ragazzi, H Rahmani, J Rames, P.N Ratoff, A.L Read, M Reale, P Rebecchi, N.G Redaelli, M Regler, D Reid, P.B Renton, L.K Resvanis, F Richard, J Richardson, J Ridky, G Rinaudo, I Ripp, A Romero, I Roncagliolo, P Ronchese, L Roos, E.I Rosenberg, E Rosso, P Roudeau, T Rovelli, W Ruckstuhl, V Ruhlmann-Kleider, A Ruiz, K Rybicki, H Saarikko, Y Sacquin, A Sadovsky, O Sahr, G Sajot, J Salt, J Sanchez, M Sannino, M Schimmelpfennig, H Schneider, U Schwickerath, M.A.E Schyns, G Sciolla, F Scuri, P Seager, Y Sedykh, A.M Segar, A Seitz, R Sekulin, L Serbelloni, R.C Shellard, I Siccama, P Siegrist, S Simonetti, F Simonetto, A.N Sisakian, B Sitar, T.B Skaali, G Smadja, N Smirnov, O Smirnova, G.R Smith, R Sosnowski, D Souza-Santos, T Spassov, E Spiriti, P Sponholz, S Squarcia, C Stanescu, S Stapnes, I Stavitski, K Stevenson, F Stichelbaut, A Stocchi, J Strauss, R Strub, B Stugu, M Szczekowski, M Szeptycka, T Tabarelli, J.P Tavernet, O Tchikilev, J Thomas, A Tilquin, J Timmermans, L.G Tkatchev, T Todorov, S Todorova, D.Z Toet, A Tomaradze, B Tome, A Tonazzo, L Tortora, G Transtromer, D Treille, W Trischuk, G Tristram, A Trombini, C Troncon, A Tsirou, M-L Turluer, I.A Tyapkin, M Tyndel, S Tzamarias, B Ueberschaer, O Ullaland, V Uvarov, G Valenti, E Vallazza, G.W Van Apeldoorn, P Van Dam, W.K Van Doninck, J Van Eldik, N Vassilopoulos, G Vegni, L Ventura, W Venus, F Verbeure, M Verlato, L.S Vertogradov, D Vilanova, P Vincent, L Vitale, E Vlasov, A.S Vodopyanov, V Vrba, H Wahlen, C Walck, M Weierstall, P Weilhammer, C Weiser, A.M Wetherell, D Wicke, J.H Wickens, M Wielers, G.R Wilkinson, W.S.C Williams, M Winter, M Witek, K Woschnagg, K Yip, O Yushchenko, F Zach, A Zaitsev, A Zalewska, P Zalewski, D Zavrtanik, E Zevgolatakos, N.I Zimin, M Zito, D Zontar, G.C Zucchelli, and G Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, Photon, Luminosity (scattering theory), 010308 nuclear & particles physics, Electron–positron annihilation, Detector, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Large Electron–Positron Collider, High Energy Physics::Experiment, Neutrino, 010306 general physics
Abstract: This letter reports the results of the measurement of single photon production in the reaction e+e− → γ+ invisible particles at centre-of-mass energies View the MathML source and 136 GeV and an integrated luminosity of 5.83 pb−1, collected with the DELPHI detector at LEP. The signal is compatible with the prediction of the Standard Model for the process View the MathML source, and the number of neutrino families has been determined to be Nν = 3.1 ± 0.6. Limits have been derived on anomalous neutral gauge boson couplings and on compositeness in the framework of a specific model.
Published: 1996
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27. Study of radiative leptonic events with hard photons and search for excited charged leptons at GeV

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, R. Aleksan, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, A. Andreazza, M.L. Andrieux, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, M. Barbi, G. Barbiellini, D.Y. Bardin, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, A.C. Benvenuti, M. Berggren, D. Bertini, D. Bertrand, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, D. Bloch, M. Blume, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, P. Branchini, K.D. Brand, T. Brenke, R.A. Brenner, C. Bricman, R.C.A. Brown, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, A. Buys, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, J. Chauveau, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, P.D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, J. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, J-D. Durand, D. Edsall, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Fenyuk, A. Ferrer, S. Fichet, T.A. Filippas, A. Firestone, P.-A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, M. Gibbs, R. Gokieli, B. Golob, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, E. Graziani, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, Z. Hajduk, A. Hallgren, K. Hamacher, W. Hao, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, A. Klovning, P. Kluit, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, P.-H. Kramer, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, S. Lamblot, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefld, V. Lapin, I. Last, J-P. Laugier, R. Lauhakangas, F. Ledroit, V. Lefebure, C.K. Legan, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J. Libby, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, A. Maio, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, T. Maron, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, M. Merk, C. Meroni, S. Meyer, W.T. Meyer, A. Miagkov, M. Michelotto, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, M. Novak, W. Oberschulte-Beckmann, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, M. Petrovyck, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, M. Pindo, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, M. Prest, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, A. Sadovsky, O. Sahr, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M.A.E. Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, A. Seitz, R. Sekulin, L. Serbelloni, R.C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, F. Simonetto, A.N. Sisakian, B. Sitar, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, R. Sosnowski, D. Souza-Santos, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stapnes, I. Stavitski, K. Stevenson, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J.P. Tavernet, O. Tchikilev, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, W. Trischuk, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, M. Weierstall, P. Weilhammer, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, HERA, 01 natural sciences, 7. Clean energy, Standard Model, Nuclear physics, Excited state, 0103 physical sciences, Large Electron–Positron Collider, Radiative transfer, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: During the last 1995 data acquisition period at LEP, the DELPHI experiment collected an integrated luminosity of 5.9 pb−1 at centre-of-mass energies of 130 GeV and 136 GeV. Radiative leptonic events (e, μ, τ) with high energy photons were studied and compared to Standard Model predictions. The data were used to search for charged excited leptons decaying through an electromagnetic transition. No significant signal was found. From the search for pair produced excited leptons, the limits View the MathML source, View the MathML source and View the MathML source at 95% confidence level were established. For single excited lepton production, upper limits on the ratio View the MathML source of the coupling of the excited charged lepton to its mass were derived.
Published: 1996
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28. Charged particle multiplicity in e+e− interactions at

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, R. Aleksan, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, A. Andreazza, M.L. Andrieux, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, M. Barbi, D.Y. Bardin, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, K. Belous, A.C. Benvenuti, M. Berggren, D. Bertrand, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, D. Bloch, M. Blume, S. Blyth, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, G. Borisov, C. Bosio, S. Bosworth, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, P. Branchini, K.D. Brand, T. Brenke, R.A. Brenner, C. Bricman, L. Brillault, R.C.A. Brown, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Bursgsmueller, P. Buschmann, A. Buys, S. Cabrera, M. Caccia, M. Calvi, A.J.Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, L. Carroll, C. Caso, M.V.Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, V. Chabaud, Ph. Charpentier, L. Chaussard, J. Chauveau, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, G. Crosetti, J.Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, P.D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G.Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, Y. Dufour, D. Edsall, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, N. Ershaidat, B. Erzen, M.Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Fenyuk, A. Ferrer, T.A. Filippas, A. Firestone, P.-A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, L. Gerdyukov, M. Gibbs, R. Gokieli, B. Golob, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, E. Graziani, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, Z. Hajduk, A. Hallgren, K. Hamacher, W. Hao, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, Yu. Khohklov, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, A. Klovning, P. Kluit, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, C. Kourkoumelis, O. Kouznetsov, P.-H. Kramer, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, S. Lamblot, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, I. Last, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, C.K. Legan, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, M. Lokajicek, J.G. Loken, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, A. Maio, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, T. Maron, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M.Mc Cubbin, R.Mc Kay, R.Mc Nulty, J. Medbo, M. Merk, C. Meroni, S. Meyer, W.T. Meyer, M. Michelotto, E. Migliore, L. Mirabito, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, W. Oberschulte-Beckmann, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, M. Petrovyck, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, M. Pindo, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, M. Prest, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M.A.E. Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, A. Seitz, R. Sekulin, R.C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, F. Simonetto, A.N. Sisakian, B. Sitar, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, O. Solovianov, R. Sosnowski, D. Souza-Santos, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stapnes, I. Stavitski, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J.P. Tavernet, O. Tchikilev, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, W. Trischuk, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C.Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, F. Waldner, M. Weierstall, P. Weilhammer, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, R. Zuberi, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, 01 natural sciences, Lower energy, Charged particle, Nuclear physics, 0103 physical sciences, Large Electron–Positron Collider, High Energy Physics::Experiment, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics
Abstract: From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be 〈nch〉 = 23.84 ± 0.51 (stat) ± 0.52 (syst). When compared to lower energy data, the value measured is consistent with the evolution predicted by QCD with corrections at next-to-leading order, for a value αs(130 GeV) = 0.105 ± 0.003 (stat) ± 0.008 (syst).
Published: 1996
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29. Production of charged particles, KS0, K±, p and Λ in events and in the decay of b hadrons

Author: Patrick Jarry, J. Chauveau, A. Petrolini, G. Rinaudo, B. De Lotto, G. Crosetti, Evgueni Vlasov, J. Salt, J. A. Hernando, Luis Peralta, F. Kapusta, H. Herr, L. G. Tkatchev, A. Pullia, A. Seitz, V. Ronjin, Marek Szczekowski, G. Valenti, F. Pierre, F. Simonetto, Maria Elena Pol, S. Katsanevas, M. Battaglia, A. N. Sisakian, A. Sadovsky, Denis Gelé, J. T.M. Chrin, M. Michelotto, B. Muryn, P. Herquet, R. Contri, I. A. Tyapkin, C. Kreuter, J. P. Tavernet, D. Vilanova, E. I. Rosenberg, K. Kurvinen, E. Rosso, H. Klein, Borge Svane Nielsen, J. J. Lozano, S. De Brabandere, Vincent Hedberg, D. W. Lane, D. Y. Bardin, M. Karlsson, T. A. Filippas, W. Neumann, Y. Dufour, J-C. Marin, R. Gokieli, P. Gunnarsson, A. Firestone, Tiziano Rovelli, D. Wicke, Javier Sánchez, Ivan Mikulec, K. Osterberg, Krzysztof Doroba, Chiara Meroni, G. Ekspong, M. Regler, Sandor Czellar, G. Polok, A. Passeri, I. V. Ajinenko, Spyros Tzamarias, O. Tchikilev, M. J. Bates, A. Buys, P. N. Ratoff, Peter Kluit, S. Simonetti, R. Ehret, Josef Strauss, Manolis Dris, P. Roudeau, A. Lopez-Fernandez, T. Tabarelli, V. Chabaud, M. Espirito Santo, W. Venus, V. Cassio, G. Leder, B. Åsman, Toralf Bernhard Skaali, R. Nicolaidou, I. Kronkvist, Ernesto Migliore, D. Gamba, M. Davenport, Fernand Grard, V. Lefebure, M. Begalli, D. Crennell, G. Smadja, F. Mandl, A. Baroncelli, P. Van Dam, M. Pimenta, Alberto Benvenuti, Yu. Sedykh, J. Van Eldik, P. Jalocha, B. A. Khomenko, F. Verbeure, J. P. Gerber, Francesco Navarria, T. S. Hill, Tord Ekelof, M. Zito, H. Staeck, Marc Winter, G. Vegni, P. Rebecchi, O. Podobrin, A. Daum, C. De La Vaissiere, M. Bonesini, P. Kubinec, Clara Troncon, G. E. Theodosiou, P. Langefeld, Phillip Allport, G. Della Ricca, G. W. Van Apeldoorn, H. Mueller, H. Wahlen, B. Stugu, T. Maron, M. Gandelman, P. Carrilho, J. J. Hernandez, M. L. Andrieux, A. Trombini, F. Zach, Wojciech Kucewicz, C. Gaspar, J. P. Engel, L. Gorn, S. Lamblot, Stefano Ragazzi, B. Loerstad, S. C. Blyth, G. Wilkinson, H. Rahmani, G. Wormser, D. Fassouliotis, Ariella Cattai, S. O. Holmgren, L. S. Vertogradov, Juan Fuster, J. H. Koehne, Kathy Huet, Valeriy Pozdniakov, Themistocles Bowcock, A. Tilquin, Barry King, Luc Pape, Anna Lipniacka, Winfried Mitaroff, E. Spiriti, C. Defoix, F. Fulda-Quenzer, M.D.M. De Fez Laso, M. S. Bilenky, A. Klovning, L.J. Carroll, U. Mjoernmark, C. Bosio, V. Ruhlmann-Kleider, K. H. Becks, E. Vallazza, F. Ledroit, Jacques Lemonne, M. V. Castillo Gimenez, Stanislav Nemecek, M. Berggren, P. Delpierre, T. Bolognese, Klaus Hamacher, D. J. Holthuizen, J. Dolbeau, Louis Lyons, Chiara Mariotti, J. Dahm, J. Timmermans, M. Prest, Allan Hallgren, H. T. Phillips, Vladimir Cindro, Cristian Stanescu, P. Branchini, W. Oberschulte-Beckmann, Y. Arnoud, R. C. Shellard, Josef Hrubec, A. M. Segar, L. Ventura, K. Yip, R. Lindner, Y. Lemoigne, J. Bjarne, M. Weierstall, G. C. Zucchelli, W. Bonivento, Kerem Cankocak, H. Schneider, G. Myatt, P. Bruckman, O. Yushchenko, P. Bambade, J. Medbo, P.S.L. Booth, Fabio Cossutti, Christine Kourkoumelis, R. Sekulin, P. Weilhammer, E. Dahl-Jensen, E. Graziani, J. M. Brunet, B. Tome, P. Antilogus, H. Foeth, F. Dupont, I. Stavitski, O. Ullaland, Leif J. Jönsson, G. A. Chelkov, U. Haedinger, R. A. Brenner, Milos Lokajicek, F. Fontanelli, R. Aleksan, C. Lambropoulos, Ugo Amaldi, F. Formenti, F. Cao, S. Hahn, Francesca Romana Cavallo, T. Lesiak, Marcos Dracos, Pierre Juillot, B. Koene, W. De Boer, E. Zevgolatakos, Paul Baillon, D. Zontar, Alexander Lincoln Read, Paul Dauncey, N. Demaria, G. Damgaard, K. D. Brand, J. Pennanen, N. I. Zimin, T. Moa, M. Szeptycka, F. Hahn, L. Di Ciaccio, B. Ueberschaer, Jan Krolikowski, V. Nikolaenko, A. Chan, W.S.C. Williams, Z. Krumstein, S. J. Alvsvaag, E. Agasi, N. Neumeister, Robert S. Brown, Y. Sacquin, Demetrios Loukas, G. Sciolla, G. Maehlum, R. Lauhakangas, Ph. Charpentier, Th D. Papadopoulou, N. N. Khovanski, W. Bartl, V. Lepeltier, I. Lippi, J. A. Valls Ferrer, M. Verlato, P. B. Renton, L. Bugge, T. L. Hessing, J. P. Laugier, A. De Min, Andrei Nomerotski, I. Siccama, G. Sajot, J. H. Wickens, P. Pages, Gary John Barker, Marco Paganoni, Jose Luis Contreras, V. Gracco, A. De Angelis, D. C. Fries, P. Collins, Maurizio Canepa, Paolo Morettini, J. G. Loken, M. Feindt, S. Sánchez Navas, V. Chorowicz, Pavlos Ioannou, Lydia Roos, A. J. Camacho Rozas, C. Martinez-Rivero, J. Drees, V. V. Lapin, D. Z. Toet, P. Siegrist, William Trischuk, A. Markou, F. Stichelbaut, J. J. Gomez Y Cadenas, W. Krupinski, B. Marechal, L. Tortora, R. Mc Kay, F. J. Harris, S. Ueberschaer, P. Negri, Paolo Checchia, C. De Saint-Jean, P. Beilliere, M. Donszelmann, A. Andreazza, Danilo Zavrtanik, Daniel Bloch, Paolo Ronchese, N. Ershaidat, Ph. Gavillet, C. De Clercq, M. Kaiser, W. J. Murray, Marta Calvi, Wolfgang Adam, K. Woschnagg, H. J. Hilke, A. Ferrer, B. Franek, N. J. Kjaer, Geoffrey Smith, Evangelos Gazis, L. Vitale, A. Tomaradze, O. Smirnova, D. Radojicic, E. C. Katsoufis, G. Gopal, L. De Paula, Ahmimed Ouraou, L. Yu, P. Niss, I. Ripp, R. Janik, Mogens Dam, A. Maltezos, R. Keranen, Carlos Lacasta, J. Garcia, W. Hao, O. Barring, Klaus Moenig, Fabrizio Parodi, Francisco Matorras, H. Pernegger, Manfred Krammer, Paolo Privitera, D. Souza-Santos, P. Lutz, M. A. Houlden, M. Mazzucato, Matteo Pegoraro, O. Kouznetsov, C. Bricman, Andrea Perrotta, P. Sponholz, Göran Jarlskog, M. A. Lopez Aguera, B. Bouquet, L. Chaussard, B. Golob, A. G. Frodesen, E. K. Johansson, V. Obraztsov, I. Roncagliolo, Claire Bourdarios, W. Da Silva, T. Buran, Markus Elsing, B. Jean-Marie, V. Bocci, R. Orava, Steinar Stapnes, R. Mc Nulty, Martino Margoni, Z. Hajduk, W. K. Van Doninck, F. Richard, E. Fokitis, P. Chochula, C. Matteuzzi, P. Abreu, B. D'Almagne, Yu. Belokopytov, G. Tristram, R. Henriques, H. De Boeck, M. Tyndel, R. Zuberi, Maciej Górski, R. Moeller, R. Sosnowski, M. Hahn, W. D. Apel, S. Almehed, Olga Botner, Krzysztof Korcyl, P. H. Kramer, A. Hakansson, K. Kulka, P. Vincent, G. Transtromer, J. Maillard, L. K. Resvanis, F. Naraghi, V. Malychev, Carmen García, G. Grosdidier, Juan Abel Barrio, Pierre Billoir, Massimo Caccia, Mariusz Witek, R. Barate, P. V. Chliapnikov, B. Boštjančič, V. Perevozchikov, J. E. Augustin, Sandra Amato, F. Carena, F. Djama, Imad Baptiste Laktineh, S. Squarcia, M. Voutilainen, S. Haider, G. E. Kalmus, S. Marti i Garcia, D. Edsall, H. Saarikko, J. L. Fousset, Alessandra Romero, C. Caso, M. Chapkin, Tiziano Camporesi, A. Ruiz, M. A E Schyns, G. Cosme, Ugo Gasparini, H. Palka, Rupert Leitner, G. Piana, P. F. Honore, G. Matthiae, Vaclav Vrba, Hans Dijkstra, Piotr Zalewski, P. J. Holt, H. B. Crawley, N. G. Redaelli, L. Brillault, J. W. Lamsa, Marco Bozzo, M. Pernicka, Jesus Marco, G. Lenzen, R. Strub, F. Martinez-Vidal, V. Kostioukhine, M. Koratzinos, K. A. Drees, V.A. Uvarov, M. Blume, F. Barao, Dietrich Liko, P. Frenkiel, A. G. Olshevski, K. Stepaniak, D. Gillespie, Chariclia Petridou, T. Spassov, A. Maio, Branislav Sitar, M. Reale, Daniel Treille, M. Bigi, J. Ridky, J. N. Jackson, Pascal Paganini, F. Waldner, Nikita Smirnov, J. Rames, F. M. L. Almeida, J. Baudot, P. Kokkinias, C. Walck, C. K. Legan, E. Higon, S. Bosworth, H. Furstenau, A. Stocchi, J. Guy, Maria Roberta Monge, F. Scuri, A. Normand, Tim Adye, A. M. Wetherell, L. Lanceri, G. D. Alekseev, E. Torassa, A. Zalewska, W. T. Meyer, Stéphane Plaszczynski, Laurent Mirabito, Mario Sannino, M. Mc Cubbin, K. Hultqvist, Georgios Stavropoulos, D. Bertrand, E. Cortina, W. Ruckstuhl, P. Beltran, G. Borisov, M. Baubillier, V. Canale, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, E. Karvelas, J. Cuevas Maestro, T. Todorov, M. Wielers, M. L. Turluer, D. Reid, Gianni Zumerle, P. Poropat, Andromachi Tsirou, Andre Augustinus, A. Wehr, Lucio Cerrito, J.D. Richardson, Richard Jacobsson, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Multiplicity (mathematics), Lambda, 01 natural sciences, Charged particle, Nuclear physics, 0103 physical sciences, Large Electron–Positron Collider, High Energy Physics::Experiment, 010306 general physics, Beam energy
Abstract: A sample of events enriched in bb̄ quark pairs was selected in the data recorded by the DELPHI experiment at LEP during 1992 and 1993, by the presence of secondary decay vertices from short-lived particles. Using this sample, the average multiplicities of Ks0, K±, p(p̄), Λ(View the MathML source) and of charged particles in bb̄ events have been measured, distinguishing the component from fragmentation and the component coming from the decay of b-hadrons. The measurement of the average charge multiplicity in bb̄ events was used to compute the mean fractional beam energy carried by the primary b-hadron, and the difference in charged particle multiplicity between bb̄ events and light quark (uū, dd̄, ss̄) events.
Published: 1995
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30. Observation of orbitally excited B mesons

Author: G. Smadja, J. Van Eldik, P. Jalocha, T. S. Hill, A. Daum, A. Markou, P. B. Renton, D. C. Fries, E. C. Katsoufis, Marta Calvi, Geoffrey Smith, A. Firestone, G. W. Van Apeldoorn, L. Ventura, K. Yip, R. Lindner, Y. Lemoigne, G. Matthiae, G. Kalmus, Tord Ekelof, H. Staeck, L. Jonsson, M. Weierstall, Stefano Ragazzi, G.P. Gopal, T. Tabarelli, E. Dahl-Jensen, F. Carena, P. Bruckman, A. B. Fenyuk, G. C. Zucchelli, O. Yushchenko, I. Lippi, R. Sekulin, A. Buys, B. Loerstad, D. Gillespie, Chiara Mariotti, J. Sanchez, Ph. Charpentier, P. Rebecchi, M. Krammer, P. Poropat, M. Bonesini, Goeran Jarlskog, V. Lepeltier, A. S. Vodopyanov, F. Formenti, F. Cao, H. Rahmani, D. Fassouliotis, F. Ledroit, Jacques Lemonne, P. Pages, Kathy Huet, J. Garcia, S. Hahn, Francesca Romana Cavallo, T. Bolognese, J. H. Wickens, Jose Luis Contreras, Alessandro Petrolini, J. J. Hernandez, Alexander Zaitsev, N. Ershaidat, Gary John Barker, A. Tomaradze, E. K. Johansson, R. Moeller, K. Woschnagg, B. Muryn, H. J. Hilke, Robert S. Brown, O. Ullaland, Andrei Nomerotski, Mario Sannino, M. Gandelman, M. A. Lopez Aguera, A. Normand, Paolo Checchia, G. Vegni, G. Maehlum, W. Oberschulte-Beckmann, Branislav Sitar, B. De Lotto, Ph. Gavillet, T. Moa, M. Verlato, G. Wormser, J. E. Augustin, W. Bonivento, L. Vitale, Kerem Cankocak, V. Vrba, M. Kaiser, P. Herquet, R. Contri, O. Podobrin, V. Obraztsov, M. Reale, O. Kouznetsov, Daniel Treille, M. Bigi, L. S. Vertogradov, K. Doroba, N. Neumeister, V. V. Lapin, C. De Clercq, J. A. Valls Ferrer, D. Radojicic, W. Trischuk, W. J. Murray, Stéphane Plaszczynski, P. Roudeau, L. K. Resvanis, Martino Margoni, E. Fokitis, E. I. Rosenberg, L. De Paula, A. G. Olshevski, B. Bouquet, W. Krupinski, I. Roncagliolo, B. Franek, V. Pozdniakov, Jan Ridky, Josef Strauss, M. Houlden, Manolis Dris, M. J. Bates, C. Gaspar, V. Chabaud, M. Espirito Santo, R. C. Shellard, Josef Hrubec, P. Paganini, M. Prest, G. Zumerle, J. Dolbeau, Flavio Fontanelli, Lydia Roos, W. Venus, P. Abreu, J. G. Loken, K. Stepaniak, C. Martinez-Rivero, A. M. Segar, P. Bambade, P.S.L. Booth, D. Gele, S-O. Holmgren, Allan Hallgren, Giovanni Valenti, L. Mirabito, Mikko Voutilainen, V. Cassio, J. P. Gerber, Massimo Caccia, R. Nicolaidou, H. Pernegger, P. Lutz, J. L. Fousset, Tiziano Camporesi, Evangelos Gazis, G. Cosme, U. Haedinger, A. Maio, R. Lauhakangas, C. Caso, B. Marechal, Piotr Zalewski, D. Zontar, C. Bourdarios, Ariella Cattai, U. Gasparini, Juan Abel Barrio, H. Furstenau, R. Orava, Borge Svane Nielsen, P. N. Ratoff, G. Leder, D. Gamba, H. Palka, J. J. Lozano, Patrick Jarry, I. Kronkvist, P. J. Holt, N. G. Redaelli, G. Rinaudo, Bjarne Stugu, Chiara Meroni, Tiziano Rovelli, K. A. Drees, J.A. Tyapkin, S. De Brabandere, J. W. Lamsa, M. L. Andrieux, A. N. Sisakian, Marco Bozzo, M. Dracos, L. Chaussard, V.A. Uvarov, A. M. Wetherell, F. M. L. Almeida, Guido Barbiellini, A. Trombini, M. Blume, F. Barao, R. A. Brenner, V. Malychev, A. Sadovsky, J. Guy, Sandra Amato, P. Frenkiel, P. Ioannou, Klaus Hamacher, F. Zach, M. Donszelmann, S. Sánchez Navas, L. G. Tkatchev, C. Walck, Tim Adye, Gueorgui Chelkov, Imad Baptiste Laktineh, A. Zalewska, S. Squarcia, P. Juillot, J. A. Hernando, E. Higon, S. Haider, G. D. Alekseev, S. J. Alvsvaag, E. Agasi, N.I. Zimin, J. Baudot, P. Negri, S. Bosworth, J. Chauveau, Maria Elena Pol, S. Katsanevas, D. Vilanova, H. Saarikko, W. T. Meyer, Stanislav Nemecek, F. Scuri, A. Lopez-Fernandez, V. Hedberg, J. T.M. Chrin, J-C. Marin, R. Gokieli, M. Berggren, A. Tsirou, J. Rames, F. Djama, A. Augustinus, I. V. Ajinenko, M. Mc Cubbin, K. Hultqvist, T. A. Filippas, Phillip Allport, J. Dahm, H. B. Crawley, A. Klovning, Y. Arnoud, U. Mjoernmark, C. Bosio, G. Della Ricca, D. Y. Bardin, T. B. Skaali, P. Kubinec, Tuure Tuuva, G. E. Theodosiou, P. Gunnarsson, Spyros Tzamarias, O. Tchikilev, Th. D. Papadopoulou, J. N. Jackson, P. Kluit, C. Vander Velde, C. Kreuter, Mogens Dam, L.J. Carroll, L. Lanceri, C. K. Legan, M. Karlsson, Alexander Lincoln Read, Luc Pape, R. Ehret, S. C. Blyth, L. Brillault, V. Nikolaenko, H. T. Phillips, Vladimir Cindro, W. D. Apel, Lucio Cerrito, J.D. Richardson, Juan Fuster, Luis Peralta, F. Kapusta, Richard Jacobsson, C. Lambropoulos, Ugo Amaldi, W. De Boer, Z. Krumstein, Yu. Sedykh, José Salt, P. H. Kramer, B. Åsman, E. Zevgolatakos, J. Medbo, M.D.M. De Fez Laso, R. Mc Nulty, H. De Boeck, B. Jean-Marie, A. De Min, T. Buran, Paolo Ronchese, S. Stapnes, Cristian Stanescu, P. Branchini, H. Mueller, P. Billoir, G. Crosetti, W. Mitaroff, M. Paganoni, G. Sciolla, M. Tyndel, I. Siccama, F. Dupont, H. Schneider, Fabio Cossutti, N. J. Kjaer, J. P. Engel, K. Kurvinen, D. Wicke, K. D. Brand, J. Pennanen, M. Pegoraro, J. Maillard, J. J. Gomez Y Cadenas, M. V. Castillo Gimenez, R. Pain, G. Lenzen, V. Bocci, Ivan Mikulec, S. Ueberschaer, L. Di Ciaccio, H. Herr, A. Seitz, Jan Krolikowski, V. Canale, T. Lesiak, A. J. Camacho Rozas, Antonio Ferrer, D. Z. Toet, B. Boštjančič, V. Perevozchikov, N. N. Khovanski, W. Bartl, G. Tristram, Hans Dijkstra, P. Privitera, O. Smirnova, K. Osterberg, P. Siegrist, N. Demaria, Marek Szczekowski, R. Barate, A. Maltezos, G. Damgaard, V. Ronjin, F. Simonetto, I. Ripp, R. Janik, J. P. Laugier, E. Rosso, M. Pernicka, M. Feindt, Guy Wilkinson, F. Verbeure, Jesus Marco, R. Strub, Fernand Grard, I. Stavitski, V. Lefebure, Paul Baillon, B. A. Khomenko, F. Martinez-Vidal, V. Kostioukhine, M. Koratzinos, C. Bricman, J. Drees, D. Crennell, A. Stocchi, Francesco Navarria, C. Defoix, M. Szeptycka, F. Mandl, M. Michelotto, M. Zito, P. Langefeld, M. Battaglia, T. Maron, M. R. Monge, W. Neumann, L. Gorn, P. Carrilho, F. Parodi, Y. Dufour, E. Vlasov, P. D. Dauncey, Sandor Czellar, P. Delpierre, G. Polok, F. Pierre, M. Pimenta, D. W. Lane, S. Marti i Garcia, D. Edsall, G. Myatt, G. Ekspong, G. Grosdidier, Ernesto Migliore, Alessandra Romero, A. Ruiz, M. A E Schyns, S. Simonetti, M. Begalli, C. Kourkoumelis, P. F. Honore, A. Baroncelli, V. Gracco, P. Van Dam, M. S. Bilenky, H. Klein, B. Dalmagne, C. De La Vaissiere, P. Kokkinias, Klaus Moenig, Milos Lokajicek, Louis Lyons, Themistocles Bowcock, A. Tilquin, L. Tortora, F. J. Harris, R. Aleksan, Carlos Lacasta, Barry King, E. Spiriti, R. Frühwirth, J. Timmermans, R. Sosnowski, A. C. Benvenuti, Demetrios Loukas, K. Kulka, P. Vincent, F. Naraghi, A. Perrotta, A. Lipniacka, A. Andreazza, L. Bugge, G. Borisov, W. Da Silva, B. Koene, M. Baubillier, F. Stichelbaut, A. Pullia, R. Mc Kay, W. K. Van Doninck, Paolo Morettini, C. De Saint-Jean, P. Beilliere, F. Richard, P. Chochula, M. Regler, D. Zavrtanik, C. Petridou, C. Matteuzzi, M. Hahn, R. Keranen, Francisco Matorras, S. Almehed, L. Yu, W. Hao, O. Barring, F. Bianchi, D. Souza-Santos, G. Sajot, Marc Winter, C. Troncon, J. H. Koehne, V. Ruhlmann-Kleider, K. H. Becks, E. Vallazza, A. G. Frodesen, J. Bjarne, B. Tome, H. Briand, P. Antilogus, Z. Hajduk, F. Hahn, Maciej Górski, E. Karvelas, M. Davenport, A. Hakansson, P. V. Chliapnikov, A. Chan, W.S.C. Williams, G. Stavropoulos, V. Chorowicz, J. Cuevas Maestro, P. Niss, M. Mazzucato, T. Todorov, M. Wielers, M. L. Turluer, D. Reid, D. J. Holthuizen, Y. Sacquin, T. L. Hessing, Wolfgang Adam, A. Wehr, D. Bertrand, E. Cortina, Yu. Belokopytov, R. Henriques, Mariusz Witek, W. Ruckstuhl, Rupert Leitner, G. Piana, W. Kucewicz, H. Wahlen, P. Beltran, B. Golob, T. Spassov, Markus Elsing, K. Rybicki, R. Zuberi, Olga Botner, G. Transtromer, Carmen García, H. Foeth, B. Ueberschaer, N. Smirnov, A. De Angelis, P. Collins, Maurizio Canepa, Daniel Bloch, Ahmimed Ouraou, P. Weilhammer, F. Fulda-Quenzer, E. Graziani, J. M. Brunet, A. 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Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, C, Cassio, V, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G, Chliapnikov, P, Chochula, P, Chorowicz, V, Chrin, J, Cindro, V, Collins, P, Contreras, J, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H, Crennell, D, Crosetti, G, Cuevas Maestro, J, Czellar, S, Dahl-Jensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Daum, A, Dauncey, P, Davenport, M, Da Silva, W, Defoix, C, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boeck, H, De Boer, W, De Brabandere, S, De Clercq, C, De Fez Laso, M, 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, Dris, M, Dufour, Y, Dupont, F, Edsall, D, Ehret, R, Ekelof, T, Ekspong, G, Elsing, M, Engel, J, Ershaidat, N, Espirito Santo, M, Fassouliotis, D, Feindt, M, Fenyuk, A, Ferrer, A, Filippas, T, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Fousset, J, Franek, B, Frenkiel, P, Fries, D, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Furstenau, H, Fuster, J, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Gerber, J, Gillespie, D, Gokieli, R, Golob, B, Gomez Y Cadenas, J, Gopal, G, Gorn, L, Gorski, M, Gracco, V, Grard, F, Graziani, E, Grosdidier, G, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hao, W, Harris, F, Hedberg, V, Henriques, R, Hernandez, J, Hernando, J, Herquet, P, Herr, H, Hessing, T, Higon, E, Hilke, H, Hill, T, Holmgren, S, Holt, P, Holthuizen, D, Honore, P, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Ioannou, P, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Jonsson, L, Juillot, P, Kaiser, M, Kalmus, G, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E, Keranen, R, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klein, H, Klovning, A, Kluit, P, Koehne, J, Koene, B, Kokkinias, P, Koratzinos, M, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, P, Krammer, M, Kreuter, C, Krolikowski, J, Kronkvist, I, Krumstein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kulka, K, Kurvinen, K, Lacasta, C, Laktineh, I, Lambropoulos, C, Lamsa, J, Lanceri, L, Lane, D, Langefeld, P, Lapin, V, Last, I, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, C, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Lokajicek, M, Loken, J, Lopez-Fernandez, A, Lopez Aguera, M, Loukas, D, Lozano, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Malychev, V, Mandl, F, Marco, J, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Maron, T, Martinez-Rivero, C, Martinez-Vidal, F, Marti i Garcia, S, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Medbo, J, Meroni, C, Meyer, W, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Murray, W, Muryn, B, Myatt, G, Naraghi, F, Navarria, F, Navas, S, Negri, P, Nemecek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, A, Oberschulte-Beckmann, W, Obraztsov, V, Olshevski, A, Orava, R, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pages, P, Pain, R, Palka, H, Papadopoulou, T, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Perevozchikov, V, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Prest, M, Privitera, P, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P, Read, A, Reale, M, Rebecchi, P, Redaelli, N, Regler, M, Reid, D, Renton, P, Resvanis, L, Richard, F, Richardson, J, Ridky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronjin, V, Roos, L, Rosenberg, E, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schneider, H, Schyns, M, Sciolla, G, Scuri, F, Sedykh, Y, Segar, A, Seitz, A, Sekulin, R, Shellard, R, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, A, Sitar, B, Skaali, T, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sosnowski, R, Souza-Santos, D, Spassov, T, Spiriti, E, Squarcia, S, Staeck, H, Stanescu, C, Stapnes, S, Stavitski, I, Stavropoulos, G, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tchikilev, O, Theodosiou, G, Tilquin, A, Timmermans, J, Tkatchev, L, Todorov, T, Toet, D, Tomaradze, A, Tome, B, Tortora, L, Transtromer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, M, Tuuva, T, Tyapkin, J, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J, Vander Velde, C, Van Apeldoorn, G, Van Dam, P, Van Doninck, W, Van Eldik, J, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, L, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Wehr, A, Weierstall, M, Weilhammer, P, Wetherell, A, Wicke, D, Wickens, J, Wielers, M, Wilkinson, G, Williams, W, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yu, L, Yushchenko, O, Zach, F, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G, Zumerle, G, UCL - SST/IRMP - Institut de recherche en mathématique et physique, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi (IHEF, IoP, FNWI), 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), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Nuclear and High Energy Physics, E+E ANNIHILATION, LUND MONTE-CARLO, Electron–positron annihilation, DELPHI, B meson, fragmentation, b-jet, 01 natural sciences, Resonance (particle physics), Full width, Partícules (Física nuclear), JET FRAGMENTATION, DECAYS, Nuclear physics, PHYSICS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Detectors de radiació, Physics, 010308 nuclear & particles physics, Quark model, LARGE ELECTRON POSITRON COLLIDER, Excited state, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment, Production rate
Abstract: Experimental evidence for the existence of orbitally excited B meson states is presented in an analysis of the BÏ and B*Ï distribution of Q = m(B**) - m(B(*)) - m(Ï) using Z0decay data taken with the DELPHI detector at LEP. The mean Q-value of the decays B**â B(*)Ï is measured to be 284 Â± 5 (stat.) Â± 15 (syst.) MeV/c2, and the Gaussian width of the signal is 79 Â± 5 (stat.) Â± 8 (syst.) MeV/c2. This signal can be described as a single resonance of mass m = 5732 Â± 5 (stat.) Â± 20 (syst.) MeV/c2and full width Î = 145 Â± 28 MeV/c2. The observed shape is also consistent with the production of several broad and narrow states as predicted by the quark model and partly observed in the D-meson sector. The production rate of B**per b-jet is found to be 0.27 Â± 0.02 (stat.) Â± 0.06 (syst.). Â© 1995.
Published: 1995
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31. Measurement of the mixing parameter in DELPHI

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, R. Aleksan, G.D. Alekseev, P.P. Allport, S. Almehed, F.M.L. Almeida, S.J. Alvsvaag, U. Amaldi, A. Andreazza, P. Antilogus, W.-D. Apel, R.J. Apsimon, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, G. Barbiellini, D.Y. Bardin, G.J. Barker, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, P. Beilliere, P. Beltran, A.C. Benvenuti, M. Berggren, D. Bertrand, F. Bianchi, M. Bigi, M.S. Bilenky, J. Bjarne, D. Bloch, J. Blocki, S. Blyth, V. Bocci, P.N. Bogolubov, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, G. Borisov, C. Bosio, B. Bostjancic, S. Bosworth, O. Botner, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, S. Braibant, P. Branchini, K.D. Brand, R.A. Brenner, H. Briand, C. Bricman, L. Brillault, R.C.A. Brown, J.-M. Brunet, L. Bugge, T. Buran, A. Buys, J.A.M.A. Buytaert, M. Caccia, M. Calvi, A.J. Camacho Rozas, R. Campion, T. Camporesi, V. Canale, K. Cankocak, F. Cao, F. Carena, P. Carrilho, L. Carroll, R. Cases, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, V. Chabaud, A. Chan, Ph. Charpentier, J. Chauveau, P. Checchia, G.A. Chelkov, L. Chevalier, P. Chliapnikov, V. Chorowicz, J.T.M. Chrin, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Couchot, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, E. Daubie, A. Daum, P.D. Dauncey, M. Davenport, J. Davies, W. Da Silva, C. Defoix, P. Delpierre, N. Demaria, A. De Angelis, H. De Boeck, W. De Boer, S. De Brabandere, C. De Clercq, M.D.M. De Fez Laso, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, M. Dris, Y. Dufour, F. Dupont, D. Edsall, R. Ehret, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, N. Ershaidat, M. Espirito Santo, V. Falaleev, D. Fassouliotis, M. Feindt, A. Fenyuk, A. Ferrer, T.A. Filippas, A. Firestone, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, J-L. Fousset, S. Francon, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, F. Fulda-Quenzer, H. Furstenau, J. Fuster, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, P. Giacomelli, D. Gillespie, R. Gokieli, B. Golob, V.M. Golovatyuk, J.J. Gomez Y Cadenas, G. Gopal, L. Gorn, M. Gorski, V. Gracco, F. Grard, E. Graziani, G. Grosdidier, P. Gunnarsson, J. Guy, U. Haedinger, F. Hahn, M. Hahn, S. Hahn, S. Haider, Z. Hajduk, A. Hakansson, A. Hallgren, K. Hamacher, G. Hamel De Monchenault, W. Hao, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, J.A. Hernando, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, P.F. Honore, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, P. Ioannou, P-S. Iversen, J.N. Jackson, R. Jacobsson, P. Jalocha, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, M. Jonker, L. Jonsson, P. Juillot, M. Kaiser, G. Kalmus, F. Kapusta, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, A. Klovning, P. Kluit, A. Koch-Mehrin, J.H. Koehne, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, A.V. Korytov, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, P.H. Kramer, M. Krammer, C. Kreuter, J. Krolikowski, I. Kronkvist, W. Krupinski, K. Kulka, K. Kurvinen, C. Lacasta, C. Lambropoulos, J.W. Lamsa, L. Lanceri, P. Langefeld, V. Lapin, I. Last, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J.M. Levy, E. Lieb, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, M. Lokajicek, J.G. Loken, A. Lopez-Fernandez, M.A. Lopez Aguera, M. Los, D. Loukas, J.J. Lozano, P. Lutz, L. Lyons, G. Maehlum, J. Maillard, A. Maio, A. Maltezos, F. Mandl, J. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, T. Maron, S. Marti, C. Martinez-Rivero, F. Martinez-Vidal, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, C. Meroni, W.T. Meyer, M. Michelotto, E. Migliore, I. Mikulec, L. Mirabito, W.A. Mitaroff, G.V. Mitselmakher, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, V. Nikolaenko, P.E.S. Nilsen, P. Niss, A. Nomerotski, A. Normand, M. Novak, V. Obraztsov, A.G. Olshevski, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, R. Pain, H. Palka, Th.D. Papadopoulou, L. Pape, F. Parodi, A. Passeri, M. Pegoraro, J. Pennanen, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, M. Prest, P. Privitera, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, G. Sajot, J. Salt, J. Sanchez, M. Sannino, S. Schael, H. Schneider, M.A.E. Schyns, G. Sciolla, F. Scuri, A.M. Segar, A. Seitz, R. Sekulin, M. Sessa, R. Seufert, R.C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, A.N. Sisakian, G. Skjevling, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, S. Squarcia, H. Staeck, C. Stanescu, S. Stapnes, I. Stavitski, G. Stavropoulos, K. Stepaniak, F. Stichelbaut, A. Stocchi, J. Strauss, J. Straver, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, O. Tchikilev, G.E. Theodosiou, Z. Thome, A. Tilquin, J. Timmermans, V.G. Timofeev, L.G. Tkatchev, T. Todorov, D.Z. Toet, A. Tomaradze, B. Tome, E. Torassa, L. Tortora, G. Transtromer, D. Treille, W. Trischuk, G. Tristram, C. Troncon, A. Tsirou, E.N. Tsyganov, M. Turala, M-L. Turluer, T. Tuuva, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, S. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, J.A. Valls Ferrer, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, M. Van Der Heijden, W.K. Van Doninck, J. Van Eldik, P. Vaz, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, M. Vollmer, M. Voutilainen, V. Vrba, H. Wahlen, C. Walck, F. Waldner, A. Wehr, M. Weierstall, P. Weilhammer, A.M. Wetherell, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, G. Wormser, K. Woschnagg, K. Yip, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, R. Zuberi, G. Zumerle, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Elementary particle, 01 natural sciences, b-tagging, Measure (mathematics), Nuclear physics, Particle decay, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Mixing (physics), Lepton
Abstract: A total of about View the MathML source decays have been analyzed to measure the View the MathML source mixing probability. Two different b tagging techniques have been used: events with two leptons and events with one lepton and one Λ. From a combination of the two methods the average mixing parameter, χ, was determined to be (12.1±1.6(stat.)±0.4(syst.)±0.4(model)%.
Published: 1994
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32. Measurement of the e+e− → γγ(γ) cross section at LEP energies

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, R. Aleksan, G.D. Alekseev, P.P. Allport, S. Almehed, F.M.L. Almeida, S.J. Alvsvaag, U. Amaldi, A. Andreazza, P. Antilogus, W-D. Apel, R.J. Apsimon, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, G. Barbiellini, D.Y. Bardin, G.J. Barker, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, P. Beilliere, P. Beltran, A.C. Benvenuti, M. Berggren, D. Bertrand, F. Bianchi, M. Bigi, M.S. Bilenky, P. Billoir, J. Bjarne, D. Bloch, J. Blocki, S. Blyth, V. Bocci, P.N. Bogolubov, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, G. Borisov, C. Bosio, B. Bostjancic, S. Bosworth, O. Botner, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, S. Braibant, P. Branchini, K.D. Brand, R.A. Brenner, H. Briand, C. Bricman, L. Brillault, R.C.A. Brown, J-M. Brunet, L. Bugge, T. Buran, A. Buys, J.A.M.A. Buytaert, M. Caccia, M. Calvi, A.J. Camacho Rozas, R. Campion, T. Camporesi, V. Canale, K. Cankocak, F. Cao, F. Carena, P. Carrilho, L. Carroll, R. Cases, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, V. Chabaud, A. Chan, M. Chapkin, Ph. Charpentier, J. Chauveau, P. Checchia, G.A. Chelkov, L. Chevalier, P. Chliapnikov, V. Chorowicz, J.T.M. Chrin, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Couchot, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, E. Daubie, A. Daum, P.D. Dauncey, M. Davenport, J. Davies, W. Da Silva, C. Defoix, P. Delpierre, N. Demaria, A. De Angelis, H. De Boeck, W. De Boer, S. De Brabandere, C. De Clercq, M.D.M. De Fez Laso, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, M. Dris, Y. Dufour, F. Dupont, D. Edsall, L-O. Eek, R. Ehret, T. Ekelof, G. Ekspong, M. Elsing, J-P. Engel, N. Ershaidat, M. Espirito Santo, V. Falaleev, D. Fassouliotis, M. Feindt, A. Ferrer, T.A. Filippas, A. Firestone, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, J-L. Fousset, S. Francon, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, H. Furstenau, J. Fuster, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, J-P. Gerber, P. Giacomelli, D. Gillespie, R. Gokieli, B. Golob, V.M. Golovatyuk, J.J. Gomez Y Cadenas, G. Gopal, L. Gorn, M. Gorski, V. Gracco, F. Grard, E. Graziani, G. Grosdidier, B. Grossetete, P. Gunnarsson, J. Guy, U. Haedinger, F. Hahn, M. Hahn, S. Hahn, S. Haider, Z. Hajduk, A. Hakansson, A. Hallgren, K. Hamacher, G.Hamel De Monchenault, W. Hao, F.J. Harris, V. Hedberg, R. Henriques, J.J. Hernandez, J.A. Hernando, P. Herquet, H. Herr, T.L. Hessing, E. Higon, H.J. Hilke, T.S. Hill, S-O. Holmgren, P.J. Holt, D. Holthuizen, P.F. Honore, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, P. Ioannou, P-S. Iversen, J.N. Jackson, R. Jacobsson, P. Jalocha, G. Jarlskog, P. Larry, B. Jean-Marie, E.K. Johansson, M. Jonker, L. Jonsson, P. Juillot, M. Kaiser, G. Kalmus, F. Kapusta, M. Karlsson, E. Karvelas, A. Katargin, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, A. Klovning, P. Kluit, A. Koch-Mehrin, J.H. Koehne, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, A.V. Korytov, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, P.H. Kramer, M. Krammer, C. Kreuter, J. Krolikowski, I. Kronkvist, W. Krupinski, K. Kulka, K. Kurvinen, C. Lacasta, C. Lambropoulos, J.W. Lamsa, L. Lanceri, P. Langefeld, V. Lapin, I. Last, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J.M. Levy, E. Lieb, D. Liko, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, M. Lokajicek, J.G. Loken, A. Lopez-Fernandez, M.A. Lopez Aguera, M. Los, D. Loukas, J.J. Lozano, P. Lutz, L. Lyons, G. Maehlum, J. Maillard, A. Maio, A. Maltezos, F. Mandl, J. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, T. Maron, S. Marti, C. Martinez-Rivero, F. Martinez-Vidal, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, C. Meroni, W.T. Meyer, M. Michelotto, E. Migliore, I. Mikulec, L. Mirabito, G.V. Mitselmakher, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, W.J. Murray, B. Muryn, G. Myatt, F. Naraghi, F.L. Navarria, P. Negri, S. Nemecek, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, P.E.S. Nilsen, P. Niss, A. Nomerotski, A. Normand, V. Obraztsov, A.G. Olshevski, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, R. Pain, H. Palka, Th.D. Papadopoulou, L. Pape, F. Parodi, A. Passeri, M. Pegoraro, J. Pennanen, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, M. Prest, P. Privitera, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, M. Reale, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, A. Romero, I. Roncagliolo, P. Ronchese, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, G. Sajot, J. Salt, J. Sanchez, M. Sannino, S. Schael, H. Schneider, M.A.E. Schyns, G. Sciolla, F. Scuri, A.M. Segar, A. Seitz, R. Sekulin, M. Sessa, R. Seufert, R.C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, F. Simonetti, A.N. Sisakian, G. Skjevling, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, S. Squarcia, H. Staeck, C. Stanescu, S. Stapnes, I. Stavitski, G. Stavropoulos, K. Stepaniak, F. Stichelbaut, A. Stocchi, J. Strauss, J. Straver, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, P. Szymanski, T. Tabarelli, O. Tchikilev, G.E. Theodosiou, Z. Thome, A. Tilquin, J. Timmermans, V.G. Timofeev, L.G. Tkatchev, T. Todorov, D.Z. Toet, A. Tomaradze, B. Tome, E. Torassa, L. Tortora, D. Treille, W. Trischuk, G. Tristram, C. Troncon, A. Tsirou, E.N. Tsyganov, M. Turala, M-L. Turluer, T. Tuuva, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, S. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, J.A. Valls Ferrer, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, M. Van Der Heijden, W.K. Van Doninck, J. Van Eldik, P. Vaz, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, M. Vollmer, M. Voutilainen, V. Vrba, H. Wahlen, C. Walck, F. Waldner, A. Wehr, M. Weierstall, P. Weilhammer, A.M. Wetherell, J.H. Wickens, M. Wielers, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, G. Wormser, K. Woschnagg, K. Yip, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, R. Zuberi, G. Zumerle, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Physics, Coupling constant, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Excited state, Cutoff, Upper and lower bounds
Abstract: The total and the differential cross sections for the reaction e+e− → γγ(γ) have been measured with the DELPHI detector at LEP using an integrated luminosity of 36.9 pb−1. The results agree with the QED predictions and consequently there is no evidence for non-standard channels with the same experimental signature. The lower limits obtained on the QED cutoff parameters are Λ+ > 143 GeV and Λ− > 120 GeV, and the lower bound on the mass of an excited electron with an effective coupling constant λγ = 1 is 132 GeV/c2. Upper limits on the branching ratios for the decays Z0 → γγ, Z0 → π0γ, Z0 → ηγ and Z0 → γγγ have been determined to be 5.5 × 10−5, 5.5 × 10−5, 8.0 × 10−5, and 1.7 × 10−5 respectively. All the limits are at the 95% confidence level.
Published: 1994
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33. Production of Λ and Λ correlations in the hadronic decays of the Z0

Author: P. Abreu, W. Adam, T. Adye, E. Agasi, R. Aleksan, G.D. Alekseev, A. Algeri, P. Allen, S. Almehed, S.J. Alvsvaag, U. Amaldi, A. Andreazza, P. Antilogus, W-D. Apel, R.J. Apsimon, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, G. Barbiellini, D.Y. Bardin, G.J. Barker, A. Baroncelli, O. Barring, J.A. Barrio, W. Bartl, M.J. Bates, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, P. Beltran, D. Benedic, A.C. Benvenuti, M. Berggren, D. Bertrand, F. Bianchi, M.S. Bilenky, P. Billoir, J. Bjarne, D. Bloch, J. Blocki, S. Blyth, V. Bocci, P.N. Bogolubov, T. Bolognese, M. Bonesini, W. Bonivento, P.S.L. Booth, G. Borisov, H. Borner, C. Bosio, B. Bostjancic, S. Bosworth, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, M. Bozzo, S. Braibant, P. Branchini, K.D. Brand, R.A. Brenner, H. Briand, C. Bricman, L. Brillault, R.C.A. Brown, P. Bruckman, J-M. Brunet, A. Budziak, L. Bugge, T. Buran, H. Burmeister, J.A.M.A. Buytaert, M. Caccia, M. Calvi, A.J. Camacho Rozas, R. Campion, T. Camporesi, V. Canale, F. Cao, F. Carena, L. Carroll, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, V. Chabaud, A. Chan, Ph. Charpentier, L. Chaussard, J. Chauveau, P. Checchia, G.A. Chelkov, L. Chevalier, P. Chliapnikov, V. Chorowicz, J.T.M. Chrin, V. Cindro, P. Collins, J.L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Couchot, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, B. Dalmagne, M. Dam, G. Damgaard, G. Darbo, E. Daubie, A. Daum, P.D. Dauncey, M. Davenport, J. Davies, W. Da Silva, C. Defoix, P. Delpierre, N. Demaria, A. De Angelis, H. De Boeck, W. De Boer, S. De Brabandere, C. De Clercq, M.D.M. De Fez Laso, C. De La Vaissiere, B. De Lotto, A. De Min, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, M. Dris, Y. Dufour, F. Dupont, D. Edsall, L-O. Eek, P.A.-M. Eerola, R. Ehret, T. Ekelof, G. Ekspong, A. Elliot Peisert, M. Elsing, J-P. Engel, N. Ershaidat, M. Espirito Santo, V. Falaleev, D. Fassouliotis, M. Feindt, A. Ferrer, T.A. Filippas, A. Firestone, H. Foeth, E. Fokitis, F. Fontanelli, K.A.J. Forbes, J-L. Fousset, S. Francon, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, F. Fulda-Quenzer, H. Furstenau, J. Fuster, D. Gamba, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, J-P. Gerber, P. Giacomelli, D. Gillespie, R. Gokieli, B. Golob, V.M. Golovatyuk, J.J. Gomez Y Cadenas, G. Gopal, L. Gorn, M. Gorski, V. Gracco, A. Grant, F. Grard, E. Graziani, G. Grosdidier, E. Gross, B. Grossetete, S. Gumenyuk, J. Guy, U. Haedinger, F. Hahn, M. Hahn, S. Haider, Z. Hajduk, A. Hakansson, A. Hallgren, K. Hamacher, G.Hamel De Monchenault, W. Hao, F.J. Harris, V. Hedberg, T. Henkes, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, I. Hietanen, C.O. Higgins, E. Higon, H.J. Hilke, S.D. Hodgson, T. Hofmokl, S-O. Holmgren, P.J. Holt, D. Holthuizen, P.F. Honore, M. Houlden, J. Hrubec, K. Huet, P.O. Hulth, K. Hultqvist, P. Ioannou, P-S. Iversen, J.N. Jackson, P. Jalocha, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, M. Jonker, L. Jonsson, P. Juillot, G. Kalkanis, G. Kalmus, F. Kapusta, M. Karlsson, E. Karvelas, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, A. Klovning, P. Kluit, A. Koch-Mehrin, J.H. Koehne, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, A.V. Korytov, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, P.H. Kramer, M. Krammer, C. Kreuter, J. Krolikowski, I. Kronkvist, U. Kruener-Marquis, W. Kucewicz, K. Kulka, K. Kurvinen, C. Lacasta, C. Lambropoulos, J.W. Lamsa, L. Lanceri, V. Lapin, I. Last, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, J.M. Levy, E. Lieb, D. Liko, J. Lindgren, R. Lindner, I. Lippi, B. Loerstad, M. Lokajicek, J.G. Loken, A. Lopez-Fernandez, M.A. Lopez Aguera, M. Los, D. Loukas, J.J. Lozano, P. Lutz, L. Lyons, G. Maehlum, J. Maillard, A. Maio, A. Malteros, F. Mandl, J. Marco, M. Margoni, J-C. Marin, A. Markou, T. Maron, S. Marti, C. Martinez-Rivero, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, G. Meola, C. Meroni, W.T. Meyer, M. Michelotto, I. Mikulec, L. Mirabito, W.A. Mitaroff, G.V. Mitselmakher, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, W.J. Murray, G. Myatt, F.L. Navarria, P. Negri, S. Nemecek, R. Nicolaidou, B.S. Nielsen, B. Nijjhar, V. Nikolaenko, P.E.S. Nilsen, P. Niss, A. Nomerotski, V. Obraztsov, A.G. Olshevski, R. Orava, A. Ostankov, K. Osterberg, A. Ouraou, M. Peganoni, R. Pain, H. Palka, Th.D. Papadopoulou, L. Pape, F. Parodi, A. Passeri, M. Pegoraro, J. Pennanen, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, G. Piana, F. Pierre, M. Pimenta, S. Plaszczynski, O. Podobrin, M.E. Pol, G. Polok, P. Paropat, V. Pozdniakov, P. Privitera, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Roditi, A. Romero, I. Roncagliolo, P. Ronchese, C. Ronnqvist, E.I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, G. Sajot, J. Salt, J. Sanchez, M. Sannino, S. Schael, H. Schneider, M.A.E. Schyns, G. Sciolla, F. Scuri, A.M. Segar, A. Seitz, R. Sekulin, M. Sessa, R. Seufert, R.C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, F. Simonetto, A.N. Sisakian, G. Skjevling, G. Smadja, O. Smirnova, G.R. Smith, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, S. Squarcia, H. Staeck, C. Stanescu, S. Stapnes, G. Stavropoulos, F. Stichelbaut, A. Stocchi, J. Strauss, J. Straver, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, P. Szymanski, T. Tabarelli, O. Tchikilev, G.E. Theodosiou, A. Tilquin, J. Timmermans, V.G. Timofeev, L.G. Tkatchev, T. Todorov, D.Z. Toet, O. Toker, A. Tomaradze, B. Tome, E. Torassa, L. Tortora, D. Treille, W. Trischuk, G. Tristram, C. Troncon, A. Tsirou, E.N. Tsyganov, M-L. Turluer, T. Tuuva, I.A. Tyapkin, M. Tyndel, S. Tzamarias, S. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, J.A. Valls Ferrer, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, M. Van Der Heijden, W.K. Van Doninck, J. Van Eldik, P. Vaz, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A.S. Vodopyanov, M. Vollmer, M. Voutilainen, V. Vrba, H. Wahlen, C. Walck, F. Waldner, A. Wehr, M. Weierstall, P. Weilhammer, A.M. Wetherell, J.H. Wickens, G.R. Wilkinson, W.S.C. Williams, M. Winter, M. Witek, G. Wormser, K. Woschnagg, N. Yamdagni, P. Yepes, A. Zaitsev, A. Zalewska, P. Zalewski, M. Zanin, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, M. Zito, D. Zontar, R. Zuberi, G. Zumerle, J. Zuniga, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Physics, Hadronic decay, Nuclear and High Energy Physics, Particle physics, Cluster decay, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, Nuclear physics, Baryon, Angular distribution, 0103 physical sciences, Mass spectrum, High Energy Physics::Experiment, 010306 general physics
Abstract: An analysis of the production of the Λ baryon in the hadronic decays of the Z0 is presented, based on about 993K multihadronic events collected by the DELPHI detector at LEP during 1991 and 1992. The differencial cross section of the Λ and the correlations between Λ and View the MathML source produced in the same event are compared to current models, based both on string fragmentation and on cluster decay. The predictions of the string fragmentation model are found to give satisfactory agreements with the data, clearly better than those of the cluster model.
Published: 1993
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34. Measurement of inclusive production of light meson resonances in hadronic decays of the Z0

Author: F. Kapusta, P. Abreu, A. Pullia, Klaus Hamacher, S. O. Holmgren, L. S. Vertogradov, H. Furstenau, T.B. Skaali, S. J. Alvsvaag, E. Agasi, Juan Abel Barrio, Luca Tortora, Eugene P. Gross, E. G. Anassontzis, J. P. Engel, P. Herquet, R. Contri, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, G. Vegni, N. Brummer, T. Hofmokl, C. J. Beeston, M. V. Castillo Gimenez, A. M. Segar, J. M. Levy, M. Feindt, P. Negri, Manolis Dris, E. Rosso, H. Klein, P. Roudeau, K. Osterberg, G. Damgaard, Tiziano Rovelli, D. Isenhower, M. Los, P. S. Iversen, F. Fontanelli, P. Borgeaud, Göran Jarlskog, Alberto Benvenuti, D. Johnson, O. Pingot, Mogens Dam, S. Squarcia, E. K. Johansson, D. Bertrand, H. Muller, V. Gracco, H. Foeth, C. Bosio, G. Hamel de Monchenault, Steinar Stapnes, Josef Strauss, R. J. Apsimon, R. Holmes, H. Saarikko, M. van der Heijden, C. Ronnqvist, G. Zhang, A. P. Ostankov, S. Braibant, V. Chabaud, A. Firestone, Pavlos Ioannou, F. Couchot, W. Venus, Robin Campion, M. Pimenta, B. A. Khomenko, Dietrich Liko, N. De Groot, P. Yepes, P. Privitera, Chariclia Petridou, Patrick Jarry, G. Rinaudo, Francesco Navarria, Louis Lyons, J. Wikne, J.T. Chrin, E. Graziani, Demetrios Loukas, P. Grosse-Wiesmann, A. De Angelis, C. Vander Velde, M. Vollmer, J. Bjarne, P. Collins, D. Delikaris, P. Antilogus, J. Zúñiga, M. A. Houlden, J. Davies, W. Ruckstuhl, I. Kronkvist, Gary John Barker, U. Rossi, Paolo Giacomelli, J. Werner, Daniel Bloch, Luc Pape, D. Wormald, T. Maron, H. Briand, Daniel Treille, G. A. Chelkov, V.A. Uvarov, Th. D. Papadopoulou, Guenakh Mitselmakher, S. Rossi, Ahmimed Ouraou, V.M. Golovatyuk, K. Woschnagg, P. David, Jorge-Armando Benitez Garcia, S. Delorme, A. Petrolini, T. Henkes, B. De Lotto, G. Crosetti, Evgueni Vlasov, Maria Elena Pol, S. Katsanevas, W.S.C. Williams, G. Wormser, A. De Min, I. Siccama, G. Sajot, D. Vilanova, G. Gopal, M. Zito, W. Klempt, F. Hahn, R. Pain, R. Moller, C. Lambropoulos, Ugo Amaldi, A. N. Sisakian, P. Beltran, Paul Baillon, W. Da Silva, W. A. Mitaroff, W. De Boer, E. Zevgolatakos, Lucio Cerrito, P. E. S. Nilsen, José Salt, T. Tabarelli, E. Lieb, H. Rahmani, H. Herr, L. G. Tkatchev, y Cadenas J.J. Gomez, J. N. Jackson, V. Chorowicz, K. Monig, P. Kokkinias, M. J. Bates, Nikita Smirnov, Allan Hallgren, J-C. Marin, R. Gokieli, Spyros Tzamarias, G. Maehlum, U. Haedinger, T. A. Filippas, M. Regler, P. Branchini, P. Billoir, K. Kulka, H. Palka, G. Skjevling, T.S. Spassov, H. Schneider, R. Lauhakangas, J. W. Lamsa, K. A. J. Forbes, D. J. Holthuizen, D. Fassouliotis, Ariella Cattai, D. Gamba, F. Ledroit, S. D. Hodgson, M. Witek, H. J. Hilke, P. Niss, F. Barao, F. Carena, M. Szczekowski, R. Ehret, M. Sessa, G. Sciolla, M. Battaglia, W. Van Doninck, F. Richard, C. Matteuzzi, M. Hahn, S. Almehed, S. Marti, M. Voutilainen, G. Grosdidier, M. Crozon, Alessandra Romero, I. Lippi, Stefano Ragazzi, A. Ruiz, J. Kesteman, E. I. Rosenberg, M. A E Schyns, M. Donszelmann, D.Yu. Bardin, A. Lopez-Fernandez, G. Voulgaris, U. Kruner-Marquis, Antonio Ferrer, K. Kurvinen, E. Higon, R. Seufert, S. Bosworth, F. Scuri, Danilo Zavrtanik, F. Stichelbaut, A. Andreazza, P. H. Kramer, M. Pernicka, I. Hietanen, K. Furnival, Y. Sacquin, F. Verbeure, V. Vrba, M. Michelotto, A. M. Wetherell, M. Richardson, G. Borisov, Richard Brenner, J.H. Kohne, P. F. Honore, J. E. Augustin, Borge Svane Nielsen, A. Maltezos, T.E. Pettersen, M. Davenport, J. Lindgren, M. Baubillier, Achille Stocchi, M. Karlsson, O. Ullaland, Leif J. Jönsson, S. Francon, Javier Sánchez, B. Golob, T. Buran, B. Lorstad, Wolfgang Adam, U. Trevisan, J. J. Lozano, Krzysztof Doroba, Chiara Meroni, M. Chapkin, Jan Buytaert, A. Grant, M. Mazzucato, P. Szymanski, S. Haider, A. G. Frodesen, L. Lanceri, Stéphane Plaszczynski, Ivan Mikulec, Jesus Marco, G. Lenzen, R. Strub, F. Cao, J. Dolbeau, P. Bambade, Z. Hajduk, Eleuterio Spiriti, R. Zuberi, Olga Botner, M. Bonesini, Krzysztof Korcyl, M.S. Bilenkii, Paul Allen, R. Keranen, Philippe Charpentier, Francisco Matorras, P. Vaz, F. R. Cavallo, R. Sekulin, W. D. Apel, B. Franek, Hans Dijkstra, J. J. Hernandez, T. Moa, G. E. Theodosiou, Tuure Tuuva, Clara Troncon, P. Zalewski, Fares Djama, C. Huet, Juan Fuster, Maciej Górski, Peter Kluit, M. Fernandez Alonso, S. C. Blyth, P.S.L. Booth, N. Yamdagni, A. Klovning, C. Caso, A. Hakansson, H. Stack, A. G. Olshevski, L. Chaussard, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, Charles Bricman, V. Obraztsov, G. Valenti, William Trischuk, A. Markou, C. Gaspar, Carmen García, G. Wilkinson, Yu. Belokopytov, M.D.M. De Fez Laso, M. Jonker, F. Pierre, T. Bolognese, V. Bocci, A. Passeri, R. Sosnowski, Tord Ekelof, G. Ekspong, P. O. Hulth, Giovanni Darbo, Paolo Ronchese, P. N. Ratoff, M. Mccubbin, S. Simonetti, P. V. Chliapnikov, A. Tomaradze, N. J. Kjaer, M. Begalli, K. D. Brand, J. Pennanen, N. I. Zimin, I. Roncagliolo, F. Dupont, Andrey Korytov, O.M. Kouznetsov, H. P. Borner, V. Lepeltier, Stefan Schael, W. Kucewicz, H. B. Crawley, R. Zukanovich Funchal, Marc Winter, E. Karvelas, M. P. Clara, M. Kopf, P. Vincent, V. G. Timofeev, B. Grossetete, Maria Roberta Monge, O. Toker, A. Zalewska, W. T. Meyer, Paolo Checchia, Rupert Leitner, A. Daum, L. Bugge, P. Delpierre, E. Daubie, Martino Margoni, R. Mcnulty, E. Fokitis, A. J. Camacho Rozas, E. Cortina, D. Z. Toet, G. D. Alekseev, E. Torassa, Jan Krolikowski, N. N. Khovanski, P. Siegrist, G. Matthiae, W. Bartl, H. Wahlen, V. Kostukhin, Ariel Goobar, Ph. Gavillet, J. Cuevas Maestro, G. Myatt, S. Uberschar, L. Mathis, U. Mjornmark, G. Tristram, Paula Eerola, W. Bonivento, C. Defoix, J. A. Valls Ferrer, G. Galeazzi, F. Fulda-Quenzer, Jacques Lemonne, Alexander Lincoln Read, M. Szeptycka, B. Dalmagne, T. Todorov, H. Burmeister, J. P. Gerber, J. P. Laugier, Laurent Chevalier, W. Ershaidat, G. W. Van Apeldoorn, R. Mckay, R. Barate, Claire Bourdarios, A. Algeri, V. Ruhlmann-Kleider, C. O. Higgins, G. E. Kalmus, K. H. Becks, E. Vallazza, J. M. Brunet, Laurent Mirabito, Robert S. Brown, L. Ventura, Milos Lokajicek, Mario Sannino, M. L. Turluer, D. Reid, R. Lindner, Y. Lemoigne, K. Hultqvist, Georgios Stavropoulos, M. A. Lopez Aguera, F. J. Harris, A. Koch Mehrin, J. E. Hooper, Carlos Lacasta, Matteo Pegoraro, L. K. Resvanis, R. Orava, Fernand Grard, Gianni Zumerle, Y. Dufour, P. D. Dauncey, Sandor Czellar, M. Weierstall, G. Smadja, B. Nijjhar, P. N. Bogolubov, Bruno Schulze, B. Bouquet, O. Chikilev, Massimo Caccia, Vladimir Nikolaenko, G. Polok, Ugo Gasparini, P. Poropat, Andromachi Tsirou, Christine Kourkoumelis, J. Drees, T.L. Hessing, E. Dahl-Jensen, Guido Barbiellini, Andre Augustinus, A. Wehr, J. Guy, Natale Demaria, Evangelos Gazis, D. Benedic, Tim Adye, M. Berggren, G. Meola, P. Juillot, C. Stanescu, George Kalkanis, P. B. Renton, D. C. Fries, E. C. Katsoufis, Marta Calvi, J. Chauveau, I. A. Tyapkin, Vincenzo Canale, Geoffrey Smith, L.J. Carroll, P. Van Dam, C. De La Vaissiere, P. Weilhammer, Themistocles Bowcock, A. Tilquin, T. Lesiak, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, F. Simonetto, A. Lipniacka, G. Leder, B. Åsman, B. Koene, Paolo Morettini, D. Crennell, F. Mandl, J. G. Loken, P. Beilliere, W. Hao, O. Barring, J. Ridky, M. Dracos, E.N. Tsyganov, J. H. Wickens, Marco Paganoni, Jose Luis Contreras, L. Vitale, D. Radojicic, P. Lutz, Andrea Perrotta, G. Sette, A. Elliot Peisert, H. De Boeck, B. Jean-Marie, M. Tyndel, J. Maillard, B. Boštjančič, V. Perevozchikov, Tiziano Camporesi, G. Cosme, A. Baroncelli, N. G. Redaelli, Marco Bozzo, P. Frenkiel, J. Straver, F. Waldner, C. Walck, J. L. Fousset, Mitchell Wayne, V. V. Lapin, A. Chan, C. De Clercq, W. J. Murray, Itzhak Roditi, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), 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: Physics, Nuclear and High Energy Physics, Particle physics, Meson, LUND MONTE-CARLO, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, E+E-ANNIHILATION, 01 natural sciences, JET FRAGMENTATION, K+P INTERACTIONS, PHYSICS, Nuclear physics, GEV/C, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RHO0, Física nuclear, Multiplicity (chemistry), 010306 general physics, Particle Physics - Experiment
Abstract: A study of inclusive production of the meson resonances ρ0, K*0 (892), f{hook}0 (975) and f{hook}2 (1270) in hadronic decays of the Z0 is presented. The measured mean meson multiplicity per hadronic event is 0.83 ± 0.14 for the ρ0 0.64 ± 0.24 for the K*0 (892), 0.10 ± 0.04 for the f{hook}0 (975) in the momentum range p > 0.05pbeam (xp > 0.05) and 0.11 ± 0.05 for the f{hook}2 (1270) for xp > 0.1. These values and the corresponding differential cross sections ( 1 σhadr) dσ dxp for the vector mesons are in good agreement with the predictions of the JETSET 7.3 PS and HERWIG 5.4 models. The f{hook}2 (1270) production is overestimated by HERWIG but its xp-shape is correctly reproduced. The measured ratios of the production cross sections σ(f{hook}2(1270)) σ(ρ0) = 0.22 ± 0.08 and σ(f{hook}2(1270)) σ(f{hook}0(975)) = 3-1 +7 for xp > 0.1 are consistent with the results obtained in hadronic reactions. © 1993.
Published: 1993
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35. The reaction e+e− → γγ(γ) at Z0 energies

Author: A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, C. Troncon, Ariel Goobar, J. H. Koehne, K. H. Becks, E. Vallazza, C. Vander Velde, P. Abreu, P. Borgeaud, Itzhak Roditi, Gueorgui Chelkov, M. Bonapart, F. Couchot, G. Hamel de Monchenault, J. Bjarne, P. Antilogus, F. Alted, P. Negri, W. Kucewicz, G. Matthiae, J.H. Bibby, E.N. Tsyganov, J. H. Wickens, K. Hamacher, W. Klempt, S-O. Holmgren, N. Crosland, W. Venus, Jose Luis Contreras, Tiziano Rovelli, G. Wormser, Pieter David, Peter M. Allen, B. A. Khomenko, M. Sesa, S. Gumenyuk, R. A. Brenner, J. Velasco, M. Pimenta, M. Voutilainen, G. Grosdidier, W. D. Apel, F. Richard, C. Matteuzzi, M. Crozon, D. Radojicic, Jan Ridky, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, M. Kopf, S. J. Alvsvaag, M. Hahn, Alessandra Romero, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, W. Krupinski, I. Lippia, M. Jonker, A. Ruiz, J. Kesteman, G. Borisov, G. Kantardjian, C. J. Beeston, n. Brunner, B. Korzen, P. Checcia, S. Marti, T. Kreuzberger, R. Ovara, F. Verbeue, A. B. Fenyuk, P. Lutz, J. Pyyhtia, S. Almehed, F. Stichelbaut, F. Hahn, W. Van Doninck, R. Mc Kay, F. Adami, R. Keranen, H. J. Hilke, Francisco Matorras, Goeran Jarlskog, N. Yamdagni, P. F. Honore, D. Johnson, Th. D. Papadopoulou, Guenakh Mitselmakher, L. Di Ciaccio, R. Zitoun, A. Katargin, Mogens Dam, V. Canale, D. Isenhower, M. Los, R. Llosa, Claudia J. Stubenrauch, R. Seufert, H. Forsbach, Jon Christopher Wikne, C. Defoix, V. Lepeltier, J. E. Augustin, A. Pinsent, Demetrios Loukas, C. Ronnqvist, G. Zhang, Eleuterio Spiriti, F. Fulda-Quenzer, T. Todorov, A. P. Ostankov, J. Derkaoui, S. Squarcia, R. Holmes, H. Saarikko, T. Tabarelli, G. Vegni, Ph. Gavillet, T. Moa, T. Braun, S. Haider, K. Woschnagg, V. Kostukhin, M. L. Turluer, E. Graziani, E. Lieb, Edoardo Castelli, D. Reid, F. Pierre, E. K. Johansson, C. Bosio, J. M. Brunet, H. Foeth, José Salt, G. Gopal, C. Caso, D. Fassouliotis, Ariella Cattai, Luc Pape, Ugo Gasparini, F. Ledroit, Jacques Lemonne, E. J. Sanchez, Gianni Zumerle, B. Ueberschaer, M. Boratav, P. Roudeau, Jorge-Armando Benitez Garcia, T. P. A. Åkesson, O. Ullaland, G. Ekspong, Leif J. Jönsson, Piotr Zalewski, L. Vibert, P. Branchini, F. Kapusta, H. B. Crawley, Guido Barbiellini, Tiziano Camporesi, P. Poropat, Andromachi Tsirou, J. Guy, U. Trevisan, Giovanni Darbo, A. De Angelis, P. Collins, D. Delikaris, V. Vrba, N. van Eijndhoven, H. Schneider, Tim Adye, E. G. Anassontzis, M. Begalli, A. De Min, C. Kourkoumelis, Joao Varela, J. Werner, J. P. Engel, M. V. Castillo Gimenez, J. J. Gomez Y Cadenas, B. Franek, V.A. Uvarov, Daniel Bloch, S. Braibant, Borge Svane Nielsen, R. Lauhakangas, N. G. Redaelli, J. J. Lozano, M. H. Gros, H. Furstenau, Ahmimed Ouraou, V.M. Golovatyuk, A. G. Frodesen, S. Ueberschaer, Jan Buytaert, Marco Bozzo, M. T. Trainor, A. Lopez-Fernandez, D. Benedic, A. Klovning, G. Damgaard, Tuure Tuuva, A. Maltezos, A. G. Olshevski, M. Fernandez Alonso, Z. Hajduk, P. Frenkiel, S. Dagorte, T. Hofmokl, Marek Szczekowski, V. Obraztsov, Maciej Górski, Andrey Korytov, Maria Roberta Monge, A. Zalewska, Dietrich Liko, P. Privitera, W. T. Meyer, O. Pingot, M. Donszelmann, Jan Krolikowski, N. N. Khovanski, W. Bartl, E. Rosso, H. Klein, A. Hakansson, M. Michelotto, J. A. Valls Ferrer, I. Roncagliolo, B. Dalmagne, Laurent Chevalier, M. S. Bilenky, J. P. Laugier, M. Schaeffer, L.J. Carroll, N.I. Zimin, V. Gracco, C. Walck, K. D. Brand, B. De Lotto, P. Kokkinias, V. Ruhlmann, Milos Lokajicek, W. Dulinski, P. V. Chliapnikov, P. Weilhammer, Daniel Treille, M. Turala, W.S.C. Williams, Pavlos Ioannou, R. Moeller, D. Bertrand, L. Bugge, A. J. Camacho Rozas, Antonio Ferrer, J. Strauss, Roberto Cirio, Lucio Cerrito, L. K. Resvanis, D. Z. Toet, P. Folegati, W. Ruckstuhl, D. Crennell, F. Mandl, V. Chorowicz, Stefaan Tavernier, H. Wahlen, F. J. Harris, P. Beltran, J. Lindgren, Chiara Meroni, B. W. Heck, M. Richardson, J. E. Hooper, Carlos Lacasta, A. Perrotta, Krzysztof A. Rybicki, D. Wormald, A. Lettessier-Sevlon, M. Baubillier, Massimo Caccia, Vladimir Nikolaenko, G. Crosetti, Evgueni Vlasov, Guy Wilkinson, R. Lucock, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, T. Spasoff, J. Cuevas Maestro, Luca Tortora, Francesca Romana Cavallo, H. Herr, Mitchell Wayne, A. Firestone, P. Juillot, M. Mazzucato, F. Waldner, F. Djama, P. Szymanski, M. Battaglia, M. Pernicka, I. Hietanen, T. Bolognese, V. V. Lapin, Jesus Marco, G. Lenzen, Ph. Charpentier, R. Strub, J. E. Campagne, C. De Clercq, R. Sekulin, M. Koratzinos, W. J. Murray, Y. Dufour, J. J. Hernandez, L. Lyon, J. P. Gerber, P. D. Dauncey, G. Maehlum, P. O. Hulth, G. Sette, A. Elliot Peisert, M. Vollmer, R. Mc Nulty, H. De Boeck, B. Jean-Marie, M. Tyndel, K. W. Glitza, J. Maillard, V. Perevozchikov, G. Polok, U. Rossi, Paolo Giacomelli, William Trischuk, B. Nijjhar, P. Delpierre, E. Daubie, S. Delorme, M. Berggren, M. Zito, A. Augustinus, C. Stanescu, S. D. Hodgson, G. Myatt, G. E. Theodosiou, A. Passeri, J.M. Gago, Pierre Billoir, S. C. Blyth, B. Grossetete, Allan Hallgren, Giovanni Valenti, P. Vaz, G. Smadja, M.D.M. De Fez Laso, M. Szeptycka, A. Lounis, S. Biagi, H. P. Borner, Stefan Schael, Natale Demaria, D. Y. Bardin, R. Dzhelyadin, A. Markou, Olga Botner, L. Mathis, George Kalkanis, P. B. Renton, Patrick Jarry, G. Rinaudo, D. C. Fries, Krzysztof Korcyl, E. C. Katsoufis, U. Mjoernmark, M. J. Bates, Paul Baillon, Jose M. Benlloch, A. Grant, Carmen García, Marta Calvi, Alexander Lincoln Read, Geoffrey Smith, G. Leder, D. Gamba, L. S. Vertogradov, G. Voulgaris, I. Herbst, H. Palka, Juan Fuster, G. Skjevling, J. W. Lamsa, Hans Dijkstra, F. Barao, E. Higon, F. Scuri, A. M. Wetherell, L. Lanceri, J. N. Jackson, U. Kruener-Marquis, Mario Sannino, Paolo Ronchese, N. J. Kjaer, B.D. Hyams, M. A. Lopez Aguera, G. Tristram, Paula Eerola, B. Åsman, E. I. Rosenberg, L. O. Eek, Josef Hrubec, G. E. Kalmus, Fernand Grard, K. Kurvinen, Javier Sánchez, A. M. Segar, B. Bouquet, M. De Beer, P. S. Iversen, F. Fontanelli, M. Bonesini, G. W. Van Apeldoorn, R. J. Apsimon, Y. Sacquin, Pierre Astier, L. G. Tkatchev, L. Ventura, W. Bonivento, Tord Ekelof, H. Staeck, Hans Muller, B. Loerstad, P. N. Bogolubov, M. Pegoraro, E. Dahl-Jensen, H. Burmeister, Robert S. Brown, D. Vilanova, P. Herquet, J-C. Marin, G. Cosme, R. Gokieli, R. Contri, Spyros Tzamarias, M. Davenport, U. Nau-Korzen, A. Baroncelli, K. Doroba, E. Menichetti, Stefano Ragazzi, M. Houlden, Manolis Dris, P. Van Dam, W.H. Range, F. Cao, E. Lillethun, R. Sosnowski, F. Naraghi, V. G. Timofeev, Renato Turchetta, C. De La Vaissiere, G. Galeazzi, K. Moenig, A. Tilquin, Martino Margoni, E. Fokitis, J. Dolbeau, P. Bambade, Pawel Jalocha, Barry King, P.S.L. Booth, P. N. Ratoff, D. J. Holthuizen, K. Furnival, Charles Bricman, Wolfgang Adam, R. Frühwirth, Yu. Belokopytov, J. Timmermans, G. D. Alekseev, M. P. Clara, A. Lipniacka, M. Mc Cubbin, K. Hultqvist, Maria Elena Pol, S. Katsanevas, D. Husson, T. A. Filippas, M. Regler, G. Stavropoulo, I. A. Tyapkin, P. Yepes, H. Mueller, P. Kluit, B. Koene, A. Pullia, Paolo Morettini, J. G. Loken, P. Beilliere, W. A. Mitaroff, R. Pain, O. Barring, S. Maltezos, J. Drees, Evangelos Gazis, M. Dracos, Abreu, P., Adama, W., and Canale, Vincenzo
Subjects: Physics, Geometric matching, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Lambda, 01 natural sciences, Nuclear physics, Excited state, 0103 physical sciences, Physique des particules élémentaires, Atomic physics, 010306 general physics
Abstract: The total and differential cross-sections for the reaction e+e- → γγ(γ) are measured at centre of mass energies around 91 GeV using an integrated luminosity of 4.7 pb-1. The aggreement with QED prediction is good. Consequently there is no evidence for non-standard channels which would have the same experimental signature. The lower limits on the QED cuttoff parameters are Λ+ > 113 GeV and Λ- > 95 GeV. An upper limit on the effective coupling between a possible excited electron and the gamma is derived. At 95% confidence level the branching ratios for Z0 decay into π0γ, ηψ and γγγ are below 1.5 × 10-4, 2.8 × 10-4 and 1.4 × 10-4 respectively., 0, info:eu-repo/semantics/published
Published: 1991
Full Text: View/download PDF

36. Erratum

Author: P. Abreu, Chiara Mariotti, S. Hahn, Francesca Romana Cavallo, I. Gil, G. D. Alekseev, Oxana Smirnova, Tord Ekelof, Luis Peralta, A. Pullia, H. Foeth, F. Carena, M. Szczekowski, M. A. Winter, V. V. Lapin, P. Morettini, C. De Clercq, A. Kiiskinen, Sylvain Fichet, Sandra Amato, Pierre Juillot, E. Boudinov, Mario Sannino, K. Karafasoulis, Ch Royon, B. Loerstad, A. De Angelis, J. G. Loken, P. Beilliere, Krzysztof Nawrocki, R. Pain, J. Libby, Ole Røhne, M. Pimenta, B. A. Khomenko, M. Mc Cubbin, K. Hultqvist, M. L. Turluer, D. Reid, W. J. Murray, R. Strub, T. Podobnik, O. Kouznetsov, M. Gunther, Rupert Leitner, T. L. Hessing, B. Ueberschaer, J. M. Heuser, A. Petrolini, Rafael Marco, M. A. Bizouard, Maurizio Bonesini, I. Gonzalez Caballero, Gianni Zumerle, P. Van Dam, Oliver Passon, A. Miagkov, F. Simonetto, S. Cabrera, C. Gaspar, R. Contri, N. Tinti, R. Lauhakangas, Ph. Charpentier, Francesco Navarria, P. Langefeld, P. Poropat, Andromachi Tsirou, Andre Augustinus, Frank Glege, Matteo Pegoraro, Patrick Jarry, J. Salt, G. Leder, M. Gaspar, B. Åsman, D. Y. Bardin, S. Squarcia, H. Saarikko, V. Lefebure, D. Crennell, G. C. Zucchelli, K. Muenich, J. D. Durand, G. Matthiae, A. G. Olshevski, B. Franek, E. Kriznic, H. Klein, J. I. Yi, Gy. Wolf, K. Osterberg, B. De Lotto, Evgueni Vlasov, P. Collins, B. Golob, P. Buschmann, R. Mc Kay, D. Vilanova, G. Borisov, B. Erzen, F. Mandl, G. Smadja, Louis Lyons, J. M. Lopez, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, C. Vander Velde, Ugo Amaldi, E. Zevgolatakos, A. Sadovsky, L. Chaussard, Tiziano Camporesi, G. Cosme, Jelena Krstic, T. Tabarelli, M. Trochimczuk, R. Gokieli, Toralf Bernhard Skaali, T. Spassov, M. Baubillier, M. Witek, G. Voulgaris, F. Verbeure, Daniel Bloch, U. Mueller, Ahmimed Ouraou, A. Andreazza, P. B. Renton, E. Spiriti, G. A. Chelkov, D. Rakoczy, U. Schwickerath, Giovanni Crosetti, Pawel Jalocha, Barry King, Alexander Vodopyanov, R. Frühwirth, J. Timmermans, P. J. Holt, F. Bianchi, M. Pernicka, Andre Tilquin, P. Rebecchi, A. Stocchi, F. Kapusta, C. Petridou, H. Rahmani, B. Stugu, S. Heising, L.N. Gerdyukov, Demetrios Loukas, Manfred Krammer, Denis Gelé, A. Van Lysebetten, Sandor Czellar, B. Marechal, Jesus Marco, G. Lenzen, Morgan Lethuillier, A. Sheridan, J. W. Lamsa, J. Mazik, V. Kostioukhine, M. Koratzinos, F. Parodi, V. Lepeltier, M. Siebel, Sofia Andringa, Rosy Nicolaidou, M. Battaglia, W. Van Doninck, Marta Calvi, G. Mc Pherson, Ariella Cattai, M. Gandelman, Petar Adzic, G. Valenti, A. Galloni, S. O. Holmgren, M. S. Bilenky, Maria Roberta Monge, A. Tonazzo, L. S. Vertogradov, D. Fassouliotis, Vincenzo Canale, Geoffrey Smith, L. Gorn, A. Maio, L.J. Carroll, K. Kurvinen, P.A. Fischer, J. Cuevas Maestro, N. Redaelli, A. Zalewska, D. Wicke, G. Damgaard, C. Martinez-Rivero, L. G. Tkatchev, C. Walck, R. Moeller, Maria Elena Pol, R. Reinhardt, A. Kinvig, T. Buran, Markus Elsing, Y. Arnoud, R. Lopez-Fernandez, A. Normand, C. Kreuter, R. Keranen, F. Pierre, Fabio Cossutti, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, A. M. Segar, T. Myklebust, G. W. Van Apeldoorn, Vincent Hedberg, G. Polok, S. Katsanevas, P. Herquet, Jakita O. Thomas, Igor Boyko, M. Feindt, T. Lesiak, D. Bertrand, L. Ventura, V. Nomokonov, Paolo Checchia, Ph. Gavillet, Francisco Matorras, Andrea Perrotta, L. K. Resvanis, Jacques Lemonne, A. Ferrer, Jiri Chudoba, F. Fontanelli, Arnaud Duperrin, V. Ruhlmann-Kleider, P. Negri, D. W. Lane, P. Andersson, S. Marti i Garcia, U. Mjoernmark, A. Nygren, J. H. Wickens, B. Muryn, Marco Paganoni, W. Bonivento, E. Cortina, Borut Paul Kerševan, R. Muresan, W. De Boer, C. Vollmer, S. Gamblin, M. Berggren, Stanislav Nemecek, Corinne Berat, Olga Botner, A.N. Sisakian, G. Ekspong, Massimo Caccia, T. Burgsmueller, Yu. Gouz, Martijn Mulders, D. Stampfer, P. Sponholz, Göran Jarlskog, L. Vitale, R. Mc Nulty, H. T. Phillips, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, L. Simard, Fabrizio Scuri, Laurent Mirabito, N. Pukhaeva, Josef Strauss, V. Chabaud, M. Espirito Santo, W. Venus, Georgios Fanourakis, V. Verzi, W. Kucewicz, Christine Kourkoumelis, G. Transtromer, G. J. Barker, P. N. Ratoff, Ch. Jarlskog, Mattias Ellert, M. Davenport, Martino Margoni, Paul Baillon, M. Begalli, Manolis Dris, L. Leinonen, Peter Chochula, P. Goncalves, G. P. Gopal, Carmen García, Nikolaos P. Mastroyiannopoulos, D. Zavrtanik, P. Lutz, A. Passeri, J.R. Mahon, G. Hughes, Ernesto Migliore, E. Fokitis, G. Barbiellini, P. Seager, Ph. Schwemling, Claire Bourdarios, P. Roudeau, O. Yushchenko, A. Ruiz, M. A E Schyns, E. Vallazza, Jorge-Armando Benitez Garcia, V. Obraztsov, T. G M Malmgren, H. Wahlen, T. J. V. Bowcock, F. Tegenfeldt, E. Piotto, P. Gris, G. Orazi, W. D. Apel, R. Sekulin, R. Alemany, H. Herr, T. Aldeweireld, Christian Weiser, Alberto Benvenuti, Piotr Zalewski, N. N. Khovanski, J. Van Eldik, Thomas Allmendinger, Dietrich Liko, P. Privitera, E. C. Katsoufis, J. P. Laugier, Ugo Gasparini, Maarten Boonekamp, Klaus Moenig, L. De Paula, A. Onofre, Ivano Lippi, K. H. Becks, Andre Sopczak, Dimos Sampsonidis, E. Falk, M. A. Houlden, J. Palacios, O. Solovianov, T. Moa, G. Della Ricca, J. E. Augustin, Daniel Treille, M. Bigi, B. Tome, G. Wilkinson, F. Fulda-Quenzer, M. Bozzo, R. Paiva, P A. Delpierre, J. Fayot, Guillelmo Gomez-Ceballos, E. Graziani, O. Klapp, V.A. Uvarov, J. Grahl, J. Ridky, M. Regler, J. M. Brunet, Tim Adye, Juan Fuster, Borge Svane Nielsen, D. J. Holthuizen, N. Neufeld, S. Haider, S. De Brabandere, Krzysztof Doroba, P. Antilogus, Chiara Meroni, P. Bruckman, L. Tortora, F. J. Harris, F. Terranova, O. Ullaland, S. Paiano, Peter Kluit, J. N. Jackson, Cristian Stanescu, P. Branchini, F. Mazzucato, Ulrich Parzefall, C. Caso, A. Markou, H. Schneider, P. Kokkinias, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, G. Vegni, Tiziano Rovelli, Th D. Papadopoulou, I. Bozovic, H. J. Grimm, Wolfgang Adam, R. Sosnowski, C. Parkes, F. Naraghi, S. Navas, Pamela Ferrari, W. Da Silva, Yu. Belokopytov, D. Bertini, R. Jacobsson, S. Todorova, W. A. Mitaroff, Julien Guy, A. Romero, F. Richard, S. Almehed, Luc Pape, Anna Lipniacka, F. Hahn, C. Matteuzzi, J. Kurowska, V. Gracco, Yu. Sedykh, F. Ledroit, D. Gamba, V. Chorowicz, G. Rinaudo, Maciej Górski, M. Mazzucato, B. Bouquet, B. Jean-Marie, A. G. Frodesen, R. Orava, S. Tzamarias, G. Eigen, P. V. Chliapnikov, J. Dolbeau, P. Bambade, P.S.L. Booth, G. W. Morton, J. C. Marin, I. van Vulpen, E. I. Rosenberg, J. J. Hernandez, E. K. Johansson, H. B. Crawley, C. Bosio, Steinar Stapnes, N. Vassilopoulos, A. W. Borgland, Z. Krumstein, V. Malychev, A. De Min, G. Sajot, U. Flagmeyer, P. Kubinec, Clara Troncon, E. Ferrer-Ribas, N. I. Zimin, S. Ragazzi, L. Bugge, A. J. Camacho Rozas, D. Z. Toet, R. Janik, C. Joram, Norbert Neumeister, Samo Stanič, Klaus Hamacher, R. Barbier, X. Moreau, J. H. Lopes, A. Firestone, C. Mulet-Marquis, T. Brenke, W. T. Meyer, K. Grzelak, Allan Hallgren, Antonio Baroncelli, Roberto Chierici, N. Ghodbane, J. Drees, S. Hoorelbeke, Paolo Ronchese, N. J. Kjaer, Evangelos Gazis, C. Green, G. Tristram, H. Palka, F. Barao, A. Deghorain, E. Higon, M. Verlato, K. Stevenson, J. H. Cowell, P. P. Allport, I. A. Tyapkin, R. A. Brenner, G. Myatt, I. V. Ajinenko, M. Nikolenko, H. M. Blom, Y. Sacquin, Kathy Huet, Valeriy Pozdniakov, Per Jönsson, A. Malek, A. Sokolov, Marcos Dracos, Vaclav Vrba, Natale Demaria, Hans Dijkstra, and P. Rosinsky
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Root (chord), Gravitino
Published: 1999
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37. Search for the t and b' quarks in hadronic decays of the Z0 boson

Author: P. Abreu, W. Adam, F. Adami, T. Adye, G.D. Alekseev, J.V. Allaby, P. Allen, S. Almehed, F. Alted, S.J. Alvsvaag, U. Amaldi, E. Anassontzis, W.D. Apel, B. Asman, C. Astor Ferreres, J.E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, D.Yu. Bardin, A. Baroncelli, O. Barring, W. Bartl, M.J. Bates, B.V. Batyunia, M. Baubillier, K.H. Becks, C.J. Beeston, P. Beilliere, I. Belokopytov, P. Beltran, D. Benedic, J.M. Benlloch, M. Berggren, D. Bertrand, S. Biagi, F. Bianchi, J.H. Bibby, M.S. Bilenky, P. Billor, J. Bjarne, D. Bloch, P.N. Bogolubov, D. Bollini, T. Bolognese, M. Bonapart, Y.E. Bonyushkin, P.S.L. Booth, M. Boratav, P. Borgeaud, H. Borner, C. Bosio, O. Botner, B. Bouquet, M. Bozzo, S. Braibant, P. Branchini, K.D. Brand, R.A. Brenner, C. Bricman, R.C.A. Brown, N. Brummer, J.M. Brunet, L. Bugge, T. Buran, H. Burmeister, C.M. Buttar, J.A.M.A. Buytaert, M. Caccia, M. Calvi, A.J. Camacho Rozas, J.E. Campagne, A. Campion, T. Camporesi, V. Canale, F. Cao, L. Carroll, C. Caso, E. Castelli, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, P. Charpentier, P. Checchia, G.A. Chelkov, L. Chevalier, P.V. Chliapnikov, V. Chorowicz, R. Cirio, M.P. Clara, J.L. Contreras, R. Contri, G. Cosme, F. Couchot, H.B. Crawley, D. Crennel, M. Cresti, G. Crosetti, N. Crosland, M. Crozon, J. Cuevas Maestro, S. Czellar, S. Dagoret, E. Dahl-Jensen, B. D'Almagne, M. Dam, G. Damgaard, G. Darbo, E. Daubie, M. Davenport, P. David, A. De Angelis, M. De Beer, H. De Boeck, W. De Boer, C. De Clercq, M.D.M. De Fez Laso, N. De Groot, C. De La Vaissiere, B. De Lotto, C. Defoix, D. Delikaris, P. Delpierre, N. Demaria, L. Di Ciaccio, A.N. Diddens, H. Dijkstra, F. Djama, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, W. Dulinski, R. Dzhelyadin, D.N. Edwards, L.O. Eek, P.A.M. Eerola, G. Ekelop, G. Ekspong, J.P. Engel, V. Falaleev, A. Fenyuk, M. Fernandez Alonso, A. Ferrer, S. Ferroni, T.A. Filippas, A. Firestone, H. Foeth, E. Fokitis, F. Fontanelli, H. Forsbach, B. Franek, K.E. Fransson, P. Frenkiel, D.C. Fries, R. Fruhwirth, F. Fulda-Quenzer, H. Fuerstenau, J. Fuster, J.M. Gago, G. Galeazzi, D. Gamba, U. Gasparini, P. Gavillet, S. Gawne, E.N. Gazis, P. Giacomelli, K.W. Glitza, R. Gokieli, V.M. Golovatyuk, A. Goobar, G. Gopal, M. Gorski, Yu. Gouz, V. Gracco, A. Grant, F. Grard, E. Graziani, I.A. Gritsaenko, M.H. Gros, G. Grosdidier, B. Grossetete, S. Gumenyuk, J. Guy, F. Hahn, M. Hahn, S. Haider, Z. Hajduk, A. Hakansson, A. Hallgren, K. Hamacher, G. Hamel De Monchenault, J.F. Harris, B. Heck, I. Herbst, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, H.J. Hilke, T. Hofmokl, R. Holmes, S.O. Holmgren, J.E. Hooper, M. Houlden, J. Hrubec, P.O. Hulth, K. Hultqvist, D. Husson, B.D. Hyams, P. Ioannou, P.S. Iversen, J.N. Jackson, P. Jalocha, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, M. Jonker, L. Jonsson, P. Juillot, R.B. Kadyrov, V.G. Kadyshevsky, G. Kalkanis, G. Kalmus, G. Kantardjian, F. Kapusta, P. Kapusta, S. Katsanevas, E.C. Katsoufis, R. Keranen, J. Kesteman, B.A. Khomenko, B. king, H. Klein, W. Klempt, A. Klovning, P. Kluit, J.H. Koehne, B. Koene, P. Kokkinias, M. Kopf, M. Koratzinos, K. Korcyl, A.V. Korytov, B. Korzen, M. Kostrikov, C. Kourkoumelis, T. Kreuzberger, J. Krolikowski, U. Kruener-Marquis, W. Krupinski, W. Kucewicz, K. Kurvinen, M.I. Laakso, C. Lambropoulos, J.W. Lamsa, L. Lanceri, V. Lapin, J.P. Laugier, R. Lauhakangas, P. Laurikainen, G. Leder, F. Ledroit, J. Lemonne, G. Lenzen, V. Lepeltier, A. Letessier-Selvon, P.K. Lichtenwagner, E. Lieb, E. Lilestol, E. Lillethun, I. Lippi, R. Llosa, B. Loerstad, M. Lokajicek, J.G. Loken, A. Lopez, M.A. Lopez Aguera, D. Loukas, J.J. Lozano, R. Lucock, B. Lund-Jensen, P. Lutz, L. Lyons, G. Maehlum, J. Maillard, A. Maltezos, F. Mandl, J. Marco, J.C. Marin, A. Markou, L. Mathis, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, E. Menichetti, C. Meroni, W.T. Meyer, W.A. Mitaroff, G.V. Mitselmakher, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, H. Muller, G. Myatt, F. Naraghi, U. Nau-Korzen, F.L. Navarria, P. Negri, B.S. Nielsen, M. Nigro, V. Nikolaenko, V. Obraztsov, R. Orava, A. Ouraou, R. Pain, K. Pakonski, H. Palka, T. Papadopoulou, L. Pape, P. Pasini, A. Passeri, M. Pegoraro, V. Perevozchikov, M. Pernicka, M. Pimenta, O. Pingot, C. Pinori, A. Pinsent, M.E. Pol, G. Polok, P. Poropat, P. Privitera, A. Pullia, J. Pyyhtia, A.A. Rademakers, D. Radojicic, S. Ragazzi, W.H. Range, P.N. Ratoff, A.L. Read, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Roditi, A. Romero, P. Ronchese, E. Rosenberg, U. Rossi, E. Rosso, P. Roudeau, T. Rovelli, V. Ruhlmann, A. Ruiz, H. Saarikko, D. Sacco, Y. Sacquin, A.B. Sadovsky, E. Sanchez, E. Sanchis, M. Sannino, M. Schaeffer, W. Schneider, F. Scuri, A. Sebastia, A.M. Segar, R. Sekulin, M. Sessa, G. Sette, R. Seufert, R.C. Shellard, P. Siegrist, S. Simonetti, F. Simonetto, T.B. Skaali, J. Skeens, G. Skjevling, G. Smadja, G.R. Smith, R. Sosnowski, K. Spang, T. Spassoff, E. Spiriti, S. Squarcia, H. Staeck, C. Stanescu, G. Stavropoulos, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, C. Stubenrauch, M. Szczekowski, M. Szeptycka, P. Szymanski, S. Tavernier, G. Theodosiou, A. Tilquin, J. Timmermans, L.G. Tkatchev, D.Z. Toet, A.K. Topphol, L. Tortora, D. Treille, U. Trevisan, G. Tristram, C. Troncon, E.N. Tsyganov, M. Turala, R. Turchetta, M.L. Turluer, T. Tuuva, I.A. Tyapkin, M. Tyndel, S. Tzamarias, F. Udo, S. Ueberschaer, V.A. Uvarov, G. Valenti, E. Vallaza, J.A. Valls, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, N. Van Eijndhoven, C. Vander Velde, J. Varela, P. Vaz, G. Vegni, M.E. Veitch, E. Vela, J. Velasco, L. Ventura, W. Venus, F. Verbeure, L. Vibert, D. Vilanova, E.V. Vlasov, A.S. Vodopianov, M. Vollmer, G. Voulgaris, M. Voutilainen, H. Wahlen, C. Walck, F. Waldner, M. Wayne, P. Weilhammer, J. Werner, A.M. Wetherell, J.H. Wickens, J. Wikne, W.S.C. Williams, M. Winter, D. Wormald, G. Wormser, K. Woschnagg, N. Yamdagni, P. Yepes, A. Zaitsev, A. Zalewska, P. Zalewski, E. Zevgolatakos, G. Zhang, N.I. Zimin, A.I. Zinchenko, R. Zitoun, R. Zukanovich Funchal, G. Zumerle, J. Zuniga, Heyd, Yvette, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, 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), Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, Nuclear and High Energy Physics, Top quark, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, Hadron, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Collider, Charged current, Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physique des particules élémentaires, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: We present a search for the third generation up type quark t and a possible fourth down type quark b' in hadronic Z0 decays observed in DELPHI at the LEP collider. For any scenario with a decay through the charged current or into a charged Higgs with a mass at least 6 GeV/c2 below the t and 3 GeVc2 below the b' mass, we set a lower limit for the t quark mass at 44.0 GeV/c2 and for the b' mass at 44.5 GeV/c2. For specific scenarios the mass limits are slightly higher, e.g. for charged current decays the limits are 44.5 and 45.0 GeV/c2 respectively, where all limits are given at a 95% confidence level. © 1990., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990
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38. Study of the leptonic decays of the Z0 boson

Author: A. Klovning, U. Mjoernmark, Sandor Czellar, G. Polok, M. Bozzo, V.A. Uvarov, A. Ruiz, Ugo Gasparini, Paolo Pasini, P. Queru, W. K. Van Doninck, F. Richard, C. Matteuzzi, M. Hahn, B. Bouqquet, A. G. Frodesen, Andrey Korytov, Jan Krolikowski, N. N. Khovanski, W. Bartl, B. V. Batyunia, R. Pain, B. Koene, E. Lieb, A. Sebastia, I. Lippi, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, C. Vander Velde, C. Lambropoulos, Ugo Amaldi, E. Zevgolatakos, R. Rongved, S. Almehed, C. Pinori, J. P. Laugier, J.A.M.A. Buytaert, A.N. Diddens, U. Kruener-Marquis, M. Gorbics, J.A. Lidbury, D. Radojicic, J.P. Grillet, M. Pimenta, N. De Groot, M. De Beer, G. Wormser, Ariella Cattai, Jacques Lemonne, A. Stocchi, Guido Barbiellini, M. Pernicka, G. Lenzen, J. E. Campagne, M. Koratzinos, L. Guglielmi, M. Bonapart, Wolfgang Adam, D. Bertrand, Francesco Navarria, Paolo Morettini, J. G. Loken, J.F. Genat, B. Kisielewski, Paolo Ronchese, T. Kreuzberger, J.C. Raoul, G. Goujon, G. Crosetti, Evgueni Vlasov, M. Nigro, Jan Ridky, A. S. Vodopianov, Tuure Tuuva, Clara Troncon, Itzhak Roditi, Gueorgui Chelkov, J. Guy, B. Dalmagne, M. Kopf, J. N. Jackson, P. Kokkinias, M. Passeneau, S. Ferroni, Z. Hajduk, F. Udo, G. Petrucci, M. Nordberg, R. Lauhakangas, H. Herr, Winfried Mitaroff, P. Beltran, Louis Lyons, C.W. Salgado, J. Mas, P. Lutz, G. Tristram, P. Laurikainen, S. Du, Paula Eerola, O. Ullaland, F. Djama, C. Gaspar, S. Haider, D.N. Edwards, C. Caso, M. Sessa, V. Castillo Gimenez, P. Negri, Tim Adye, C. De La Vaissiere, Laurent Chevalier, U. Trevisan, N. Crosland, J.V. Allaby, M. Jonker, Y. Sacquin, Maciej Górski, A. B. Fenyuk, L. Mattsson, J.J. Jaeger, Tiziano Rovelli, M. Cresti, J.H. Bibby, G.P. Barreira, B. Lund-Jensen, G. E. Kalmus, G. D. Alekseev, J. M. Yelton, A. Passeri, S. Gawne, Klaus Hamacher, A. Firestone, G. Kantardjian, C. De Clerco, Milos Lokajicek, K. Woschnagg, M. Nonni, P. Branchini, J. Krstic, Göran Jarlskog, W. Bell, N. I. Zimin, Stavros Maltezos, Mikael Berggren, H. Hofmann, J. Cuevas Maestro, H. B. Crawley, V. Lepeltier, H. Forsbach, F. Fulda-Quenzer, T. Bolognese, E. C. Katsoufis, G. Gopal, A. Letessier-Selvon, S. Gumenyuk, Nikolai Smirnov, V. Ruhlmann, O. Barring, G. Zhang, Paolo Checchia, B. Franek, W. Kucewicz, G. Matthiae, C. Stanescu, L.J. Carroll, M. L. Turluer, M. Vollmer, D. Reid, Ph. Gavillet, P. Spentzouris, E. Graziani, B. Jean-Marie, A. Hakansson, E. J. Sanchez, W. D. Apel, S. J. Alvsvaag, Roland Horisberger, L. Bugge, G. Hamel de Monchenault, E. G. Anassontzis, J. P. Engel, I. Kontaxis, P. Lorenz, P. Roudeau, M. J. Bates, Edoardo Castelli, D. Z. Toet, J. Joensuu, J. M. Brunet, H. Lebbolo, Josef Strauss, R. Llosa, N. Bingefors, P. Van Dam, M. Fernandez Alonso, P. Privitera, M.V. Reis, P. Weilhammer, Luc Pape, D. Imbault, R. Zitoun, D. Langerveld, P. Abreu, P. Borgeaud, Borge Svane Nielsen, M. H. Gros, F. J. Harris, H. Foeth, P. Allen, Gianni Zumerle, F. Astesan, Toralf Bernhard Skaali, Maria Roberta Monge, S. Barlag, A. Zalewska, Valery Pozdnyakov, G. Cabras, Krzysztof Doroba, Chiara Meroni, A.K. Topphol, C. Brand, M. Mc Cubbin, G. Ekspong, K. Hultqvist, Renato Turchetta, B. Grossetete, Allan Hallgren, B. Korzen, P. Poropat, G. Damgaard, C. Poiret, L. Tortora, Giovanni Valenti, I. Belokopytov, M. Boratav, D. Gamba, G. Voulgaris, Sverker Johansson, W. T. Meyer, Pierre Billoir, Mogens Dam, K. Rybicki, W. Venus, B. Muryn, V. Obraztsov, P. Aarnio, V. Gracco, M. Schaeffer, Andre Augustinus, P. Herquet, H. Palka, G. Skjevling, R. Contri, Giovanni Darbo, S. Simonetti, M. Voutilainen, G. Grosdidier, R. Sekulin, R. Dzhelyadin, T. Pettersen, Jose M. Benlloch, A. Grant, R.B. Kadyrov, F. Barao, P. V. Chliapnikov, M. Crozon, Craig Buttar, A. De Angelis, D. Delikaris, N. van Eijndhoven, J. Werner, L. Viseu Melo, E. Sundell, M.I. Laakso, Daniel Bloch, Hans Dijkstra, I. Herbst, Katri Huitu, T.K. Truong, B. Goret, M. Baubillier, R. Lucock, Alessandra Romero, Georgios Stavropoulos, J.M. Noppe, M. Turala, Barry King, Ahmimed Ouraou, Pavlos Ioannou, F. Simonetto, R. Gokieli, A. Tilquin, J. Perez, I.A. Gritsaenko, G. Leder, G. B. Chadwick, E. Higon, R. Seufert, V.M. Golovatyuk, W.S.C. Williams, Daniel Treille, J. J. Hernandez, R. Frühwirth, Manolis Dris, J. Pyythia, B. Åsman, P. Adrianos, C. J. Beeston, F. Scuri, Juan Fuster, N.K. Vishnevskij, A. M. Zaitsev, E. K. Johansson, J. E. Hooper, J.C. Le Grand, J. Timmermans, J. Pagot, A. Pullia, J.-E. Augustin, A. M. Wetherell, E. Lillethun, T. Moa, G. Maehlum, K. Pakonski, F. Bianchi, J. Michałowski, Kjell Fransson, L. Lanceri, D. Husson, J. Barlow, E. Vela, Lucio Cerrito, T. Buran, J.B.M. Pattison, I. A. Tyapkin, M. A. Houlden, D. Crennell, F. Mandl, A. Pinsent, A.M. Romaya, M. Ellila, Guenakh Mitselmakher, A.J. Camacho Rozas, D. Vilanova, G. Smadja, D.Yu. Barbin, S. Squarcia, K. W. Glitza, A. Zinchenko, E. Menichetti, Olga Botner, Krzysztof Korcyl, H. Saarikko, T. Hofmokl, Marek Szczekowski, N. Dimitriou, Stefano Ragazzi, José Salt, F. Couchot, R. Sosnowski, B. W. Heck, E. Rosso, H. Klein, H. Schneider, V. G. Timofeev, S. Nounos, J.-P. Vanuxem, Panos Kostarakis, M.-H. Gros, A. Markou, F. Cao, V. Falaleev, E. Lillestol, V. Chorowicz, O.A. Maeland, R. Downs, J. Haissinski, S. Braibant, Tord Ekelof, H. Staeck, G. Galeazzi, R. Strub, B. Loerstad, K. Moenig, S. Cairanti, H. Burmeister, D. Sacco, M. Mazzucato, E. Fokitis, Robert S. Brown, J. Drees, P. Szymanski, Patrick Jarry, M. Winter, G. Rinaudo, Evangelos Gazis, G. Vegni, N. Brummer, W. H. Range, E. Spiriti, B.D. Hyams, E. I. Rosenberg, K. Kurvinen, M. Dracos, R. Ragazzon, P. Siegrist, J-C. Marin, M. Davenport, B. Grung, A. A. Rademakers, S. O. Holmgren, D. Benedic, D. Loukas, George Kalkanis, P. B. Renton, M. Flinn, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, A. M. Segar, D. C. Fries, G. Kuhn, P. S. Iversen, F. Fontanelli, J. Skeens, C. Astor Ferreres, J. Velasco, Marta Calvi, L. Tkachev, Vincenzo Canale, Geoffrey Smith, G. W. Van Apeldoorn, G. Sette, L.S. Curwen, W. Dulinski, L. Ventura, Håkan T Johansson, B. Lavigne, S. Palma Lopes, S. Quinton, Hans Muller, T. Odegaard, P. N. Bogolubov, Christine Kourkoumelis, E. Dahl-Jensen, H. De Boeck, M. Tyndel, P. Vaz, D. Bollini, M. Pegoraro, J. Maillard, P. Jalocha, S. Biagi, H. P. Borner, V. Kadyshevskiy, V. Perevozchikov, Theodora Papadopoulou, Tiziano Camporesi, N. G. Redaelli, P. Frenkiel, R. Moeller, A. Baroncelli, A. Hrisoho, H. J. Hilke, C. Bosio, F. Waldner, K. D. Brand, Antonio Ferrer, Roberto Cirio, L. K. Resvanis, C. Walck, G. E. Theodosiou, M. Zito, O. Pingot, K. Spang, E. Sanchis, L. Mathis, Massimo Caccia, N. Yamdagni, Paul Baillon, Alexander Lincoln Read, Vladimir Nikolaenko, M. Szeptycka, P. Juillot, M. Mur, M.A. Lopez Aguera, Francesca Romana Cavallo, Mitchell Wayne, V. V. Lapin, P. O. Hulth, F. Rossel, P. Delpierre, E. Daubie, G. Myatt, J.M. Gago, Joao Varela, P. Kluit, P. R. S. Gomes, S. Ueberschaer, A. Maltezos, M. Gaillard, A. Campion, R. Zukanovich Funchal, H. Wahlen, Ariel Goobar, D. Fraissard, K. H. Becks, P. Antilogus, M. E. Veitch, J. Bjarne, W. Klempt, F. Hahn, F. Stichelbaut, R. Mc Kay, Cesare Chiccoli, F. Adami, M. Barranco-Luque, R. Keranen, Philippe Charpentier, Mario Sannino, R. Orava, S. Topp-Jorgensen, Maria Elena Pol, S. Katsanevas, T. A. Filippas, M. Regler, Yu. Sedykh, B. Van Eijk, H. Mueller, J. Dolbeau, P. Folegati, P.S.L. Booth, P. N. Ratoff, J. J. Gómez Cadenas, J. Marco, M. P. Clara, Piotr Zalewski, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Heyd, Yvette, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Width ratio, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino, 010306 general physics, Particle Physics - Experiment, Lepton, Boson
Abstract: Measurements are presented of the cross section ratios Rℓ = σℓ(e+e-→ℓ+ℓ -)/σhh(e+e-→hadrons) for ℓ = e, μ and τ using data taken from a scan around the Z0. The results are Re = (5.09±0.32±0.18)%, Rμ = (4.96±0.35±0.17)% and Rτ,=(4.72±0.38± 0.29)% where, for the ratio Re, the t-channel contribution has been subtracted. These results are consistent with the hypothesis of lepton universality and test this hypothesis at the energy scale s ∼ 8300 GeV2. The absolute cross sections σℓ(e+e-→ℓ +ℓ-) have also been measured. From the cross sections the leptonic partial widths Γe = (83.2±3.0±2.4) MeV, (ΓeΓμ) 1/2=(84.6±3.0±2.4) MeV and (ΓeΓτ) 1/2=(82.6±3.3±3.2) MeV have been extracted. Assuming lepton universality the ratio Γℓ/Γh=(4.89±0.20± 0.12) × 10-2 was obtained, together with Γℓ=(83.6±1.8±2.2) MeV. The number of light neutrino species is determined to be Nv=3.12±0.24±0.25. Al the data are consistent with the predictions of the standard model., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990
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39. Measurement of the spin density matrix for the rho(0), K*(0)(892) and phi produced in Z(0) decays

Author: H. Foeth, R. Alemany, T. Tabarelli, S. Amato, B. Ueberschaer, P. Rebecchi, H. Rahmani, G. Rinaudo, G. Myatt, A. De Angelis, E. K. Johansson, Steinar Stapnes, M. Gorski, P. Collins, G. D. Alekseev, Ariella Cattai, F. Ledroit, O. Barring, A. Firestone, Daniel Bloch, Kirsten Drees, N. Vassilopoulos, F. Tegenfeldt, Andrei Nomerotski, P. Abreu, Ahmimed Ouraou, Norbert Neumeister, Dietrich Liko, P. Privitera, Imad Baptiste Laktineh, D. Y. Bardin, H. Saarikko, D. J. Holthuizen, M. Mc Cubbin, Robert S. Brown, K. Hultqvist, Rafael Marco, W. D. Apel, B. Franek, L.N. Gerdyukov, P. Siegrist, P. Kokkinias, A. W. Borgland, A. Miagkov, J. Baudot, P. Delpierre, O. Podobrin, M. E. Pol, D. Gamba, B. Dalmagne, B. Golob, V. Malychev, K. Grzelak, F. Naraghi, Z. Krumstein, T. Buran, Markus Elsing, Matteo Pegoraro, A. De Min, T. Brenke, K. Korcyl, R. Lauhakangas, Ph. Charpentier, A. Ferrer, J. Salt, P. Vincent, Daniel Treille, M. Barbi, E. Falk, Patrick Jarry, Wolfgang Adam, D. Knoblauch, A. G. Frodesen, E. Zevgolatakos, Klaus Hamacher, S. Marti i Garcia, D. Edsall, K. Karafasoulis, J. Masik, R. Chierici, G. Wilkinson, J. Ridky, A.N. Sisakian, L. de Paula, S. Tzamarias, C. Parkes, R. Contri, Mario Sannino, Corinne Berat, J. M. Lopez, A. Ruiz, Yu. Belokopytov, G. Fanourakis, J. Fuster, Pierre Juillot, A. Di Diodato, M. L. Turluer, D. Reid, M. A E Schyns, K. Nawrocki, P. Antilogus, E. Boudinov, P. Kubinec, Lydia Roos, Josef Strauss, C. Joram, J. Drees, V. Chabaud, M. Espirito Santo, W. Venus, Nikita Smirnov, G. Transtromer, J. Krstic, R. Orava, A. Passeri, W. Krupinski, D. Vilanova, T. J. V. Bowcock, A. Trombini, T. L. Hessing, B. De Lotto, M. Pimenta, M. V. Castillo Gimenez, P. Poropat, F. Martinez-Vidal, L. Serbelloni, Gianni Zumerle, H. Palka, F. Fulda-Quenzer, I. Stavitski, C. Weiser, V. Gracco, D. Zavrtanik, A. Onofre, A. Galloni, S. O. Holmgren, G. Eigen, G. Piana, Clara Troncon, M. Bigi, Evangelos Gazis, O. Botner, R. Moeller, P. Bruckman, A. Seitz, M. Feindt, F. Pierre, Mogens Dam, Alexander Lincoln Read, C. Petridou, Paolo Morettini, Marc Besancon, K. Stevenson, G. Valenti, Rupert Leitner, G. Matthiae, M. Kaiser, P. Negri, P. Ferrari, L. S. Vertogradov, P. Seager, P. Rosinsky, S. Navas, C. Garcia, A. Sadovsky, L. K. Resvanis, Luc Pape, Anna Lipniacka, K. Rybicki, Andromachi Tsirou, P. Bambade, Z. Hajduk, P. Buschmann, R. Mc Kay, L. Di Ciaccio, Josef Hrubec, A. Andreazza, Massimo Caccia, M. Gandelman, J. Dolbeau, Stefano Ragazzi, D. W. Lane, J. G. Loken, A. Grefrath, P. Beilliere, Manfred Krammer, Denis Gelé, T. Rovelli, P. V. Chliapnikov, W.S.C. Williams, Vladimir Nikolaenko, Chiara Mariotti, E. I. Rosenberg, L. M. Mundim, K. Kurvinen, D. Wicke, C. Martinez-Rivero, M. Michelotto, O. Smirnova, S. Hoorelbeke, Paolo Ronchese, N. J. Kjaer, T. Myklebust, P. Herquet, F. Barao, Andre Augustinus, J. P. Tavernet, A. Perrotta, G. Borisov, M. Baubillier, J. J. Hernandez, R. Gokieli, V. Ruhlmann-Kleider, R. Janik, P.S.L. Booth, C. De La Vaissiere, Fabrizio Parodi, K. D. Brand, T. Burgsmueller, N. I. Zimin, V. Hedberg, P. Goncalves, P. Sponholz, Ch. Jarlskog, A. M. Segar, M. A. Winter, G. Crosetti, Evgueni Vlasov, F. Scuri, G. Ekspong, M. Verlato, C. Green, G. Tristram, A. Stocchi, L. Tortora, Manolis Dris, D. Bertini, R. Jacobsson, F. J. Harris, S. Todorova, A. M. Zaitsev, Alexander Vodopyanov, R. Keranen, Francisco Matorras, T. Ekelof, S. Meyer, Charles Bricman, M. R. Monge, J. D. Durand, C. Kreuter, V. Chorowicz, F. Terranova, J. H. Cowell, P. P. Allport, K. Papageorgiou, A. Tonazzo, A. Baroncelli, Ulrich Parzefall, J. Van Eldik, Heinz Pernegger, K. Doroba, L. Bugge, A. G. Olshevski, L. Chaussard, P. Van Dam, M. Bozzo, F. Formenti, F. Cao, V.A. Uvarov, G. Mc Pherson, V. Lepeltier, A. Sheridan, M. Reale, L. G. Tkatchev, J. Garcia, G. Sciolla, W. Da Silva, F. R. Cavallo, W. Kucewicz, S. Hahn, F. Carena, A. Tilquin, W. A. Mitaroff, J. M. Heuser, J. Yi, J. W. Lamsa, A. J. Camacho Rozas, E. Graziani, Y. Arnoud, M. Blume, I. A. Tyapkin, R. Henriques, V. Obraztsov, U. Schwickerath, L. Jonsson, P. Niss, D. Z. Toet, B. Bouquet, J. M. Brunet, A. Deghorain, W. Neumann, A. Markou, W. De Boer, J. Cuevas Maestro, T. Todorov, M. Davenport, Th. D. Papadopoulou, B. Muryn, P. Gris, T. G M Malmgren, H. Wahlen, G. Polok, D. Fassouliotis, M. Pernicka, C. Caso, A. Petrolini, A. Van Lysebetten, Sandor Czellar, A. Zalewska, Martijn Mulders, M. Mazzucato, R. C. Shellard, D. Bertrand, Jiri Chudoba, E. Vallazza, P. Chochula, Ugo Amaldi, H. Mueller, W. T. Meyer, D. Loukas, F. L. Navarria, O. Yushchenko, W. Oberschulte-Beckmann, Jesus Marco, G. Lenzen, P. Zalewski, M. Begalli, V. Kostioukhine, M. Koratzinos, M. Nikolenko, S. Katsanevas, M. Wielers, R. Sekulin, A. M. Wetherell, I. Kronkvist, Yu. Gouz, G. Sajot, Martino Margoni, Jacques Lemonne, K. H. Becks, M. Battaglia, E. Fokitis, P. Jonsson, G. Gopal, C. Matteuzzi, C. De Clercq, R. A. Brenner, J. N. Jackson, O. Kouznetsov, G. Cosme, A. C. Benvenuti, T. A. Filippas, D. Stampfer, P. B. Renton, F. Cossutti, J. P. Gerber, S. Squarcia, G. Vegni, G. Barbiellini, M. Regler, W. J. Murray, Pawel Jalocha, Barry King, E. Spiriti, T. Moa, Cristian Stanescu, P. Branchini, Laurent Mirabito, H. Schneider, Juergen Thomas, Paul Baillon, F. Zach, G. Jarlskog, S. Fichet, G. Orazi, J. C. Marin, E. Migliore, H. Herr, Stanislav Nemecek, M. Szeptycka, J. Medbo, N. Pukhaeva, M. Witek, F. Hahn, R. Frühwirth, J. Timmermans, J. Dahm, R. Strub, E. C. Katsoufis, Amiran Tomaradze, Y. Sacquin, Rosy Nicolaidou, Yu. Sedykh, Ugo Gasparini, A. Djannati, O. Ullaland, Marta Calvi, M. A. Bizouard, Kathy Huet, Valeriy Pozdniakov, Vincenzo Canale, Geoffrey Smith, F. Richard, M. J. Bates, K. Muenich, T. Podobnik, G. Della Ricca, G. W. Van Apeldoorn, O. Solovianov, C. K. Legan, M. Bonesini, W. Bonivento, L. Ventura, K. Yip, J. Guy, Louis Lyons, C. Gaspar, Toralf Bernhard Skaali, P. Andersson, P. Roudeau, A. Sokolov, Marcos Dracos, Tim Adye, F. Verbeure, B. Marechal, R. Mc Nulty, J. R. Mahon, B. Stugu, Christine Kourkoumelis, J. P. Engel, Carlos Lacasta, M. Tyndel, S. Stanic, A. B. Fenyuk, G. C. Zucchelli, A. Pullia, G. J. Barker, Mingshui Chen, G. Grosdidier, G. A. Chelkov, T. Wlodek, R. Ehret, Paul Dauncey, N. Demaria, P. Paganini, G. Damgaard, H. Klein, A. Hallgren, Tiziano Camporesi, K. Osterberg, P. J. Holt, N. G. Redaelli, F. Bianchi, Paolo Checchia, Ph. Gavillet, L. Lanceri, C. Walck, R. Reinhardt, Yu.A. Khokhlov, S. Cabrera, J. MacNaughton, A. Normand, M. Szczekowski, M. Nieuwenhuizen, Flavio Fontanelli, B. Erzen, R. Silvestre, M. Canepa, U. Mjoernmark, Pierre Billoir, Klaus Moenig, M. A. Houlden, A. Romero, T. Spassov, J. E. Augustin, M. Berggren, E. Higon, M. Chapkin, Vaclav Vrba, Hans Dijkstra, H. B. Crawley, C. Bosio, A. Nygren, H. T. Phillips, Vladimir Cindro, S. Almehed, L. Peralta, R. Sosnowski, B. Loerstad, N. N. Khovanski, R. Pain, J. P. Laugier, J. Libby, Ole Røhne, B. A. Khomenko, P. Langefeld, L. Gorn, C. Bourdarios, A. Leisos, G. Maehlum, M. Gunther, O. Klapp, Borge Svane Nielsen, S. De Brabandere, Chiara Meroni, A. Maio, Peter Kluit, M. S. Bilenky, L.J. Carroll, P. N. Ratoff, P.A. Fischer, T. Lesiak, F. Simonetto, F. Kapusta, G. Leder, B. Åsman, V. Lefebure, D. Crennell, F. Mandl, G. Smadja, E. Cortina, B. Jean-Marie, I. Lippi, L. Vitale, J. H. Wickens, Marco Paganoni, D. Radojicic, D. Souza-Santos, P. Lutz, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, LEP (IHEF, IoP, FNWI), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 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), UCL - SC/PHYS - Département de physique, 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), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Nuclear and High Energy Physics, Meson, Electron–positron annihilation, D-STAR, Hadron, ANNIHILATIONS, Partícules (Física nuclear), QUARK FRAGMENTATION, HADRONS, MESONS, Nuclear physics, Angular distribution, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Matrix element, Spin density, Detectors de radiació, DELPHI, Physics, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Mass spectrum, Atomic physics, Particle Physics - Experiment
Abstract: The spin density matrix elements for the rho(0), K-*0(892) and phi produced in hadronic Z(0) decays are measured in the DELPHI detector. There is no evidence for spin alignment of the K-*0(892) and phi, in the region x(p) less than or equal to 0.3 (x(p) = p/p(beam)), where rho(00) = 0.33 +/- 0.05 and rho(00) = 0.30 +/- 0.04, respectively. In the fragmentation region, x(p) greater than or equal to 0.4, there is some indication for spin alignment of the rho(0) and K-*0(892), since rho(00) = 0.43 +/- 0.05 and rho(00) = 0.46 +/- 0.08, respectively. These values are compared with those found in meson-induced hadronic reactions. For the phi, rho(00) = 0.30 +/- 0.04 for x(p) greater than or equal to 0.4 and 0.55 +/- 0.10 for x(p) greater than or equal to 0.7. The off-diagonal spin density matrix element rho(1-1) is consistent with zero in all cases. (C) 1997 Published by Elsevier Science B.V.
Published: 1997
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40. Measurement and interpretation of the $W$-pair cross-section in $e^+e^-$ interactions at 161 GeV

Author: J. D. Durand, Norbert Neumeister, A. Tonazzo, A. G. Olshevski, M. Merk, U. Schwickerath, A. Firestone, J. H. Cowell, S-O. Holmgren, Maria Roberta Monge, Tiziano Rovelli, D. Bertini, J. Masik, A. Zalewska, Stefano Ragazzi, W. T. Meyer, Jacques Lemonne, Tiziano Camporesi, G. Cosme, Klaus Hamacher, P. Pages, B. Dalmagne, F. Formenti, F. Cao, P. J. Holt, N. G. Redaelli, Marco Bozzo, T. Wlodek, P. Frenkiel, Laurent Mirabito, I. A. Tyapkin, Petar Adzic, F. Waldner, Andrea Perrotta, R. Mc Nulty, B. Jean-Marie, D. Knoblauch, M. Pegoraro, T. Brenke, M. Zito, C. Walck, R. Reinhardt, Yu.A. Khokhlov, A. Normand, C. Weiser, Z. Krumstein, S. Gumenyuk, K. Grzelak, Luis Peralta, F. Kapusta, Luc Pape, W. Neumann, T. Bolognese, I. V. Ajinenko, A. Ferrer, Martijn Mulders, O. Kouznetsov, J. M. Heuser, L. Tortora, Allan Hallgren, A. Pullia, A. Konopliannikov, Chiara Mariotti, P. Kubinec, K. Stevenson, J. P. Tavernet, Mingshui Chen, T. Tabarelli, F. J. Harris, F. Terranova, C. Vander Velde, H. Palka, S. Hahn, Francesca Romana Cavallo, Tord Ekelof, M. L. Andrieux, M. Baubillier, A. De Min, C. De Clercq, W. J. Murray, A. Galloni, K. Muenich, O. Sahr, Piotr Zalewski, A. M. Zaitsev, Alexander Vodopyanov, C. Kreuter, P. Buschmann, B. Muryn, Martino Margoni, E. Fokitis, R. Mc Kay, Carlos Lacasta, Krzysztof A. Rybicki, M. Barbi, P. Rebecchi, L. S. Vertogradov, Louis Lyons, A. Van Lysebetten, H. Rahmani, A. Passeri, T. J. V. Bowcock, T. L. Hessing, J.D. Richardson, F. Bianchi, O. Podobrin, M. S. Bilenky, Sandor Czellar, G. Polok, A. Andreazza, Yu. Gouz, Ernesto Migliore, J. P. Engel, S. Stanic, M. V. Castillo Gimenez, G. A. Chelkov, P. Weilhammer, R. Lauhakangas, M. Feindt, S. Sánchez Navas, P. Negri, D. Fassouliotis, P. Ferrari, M. Bonesini, A. Trombini, G. Sajot, Anna Lipniacka, Y. Sacquin, K. D. Brand, Marek Szczekowski, E. Boudinov, N. I. Zimin, J. W. Lamsa, M. Blume, F. Barao, A. Deghorain, E. Higon, F. Scuri, A. M. Wetherell, W. Oberschulte-Beckmann, R. C. Shellard, G. Orazi, Ugo Gasparini, K. A. Drees, Richard Jacobsson, A. Petrolini, B. De Lotto, G. Crosetti, Evgueni Vlasov, Ariella Cattai, F. Ledroit, J. Fuster, D. J. Holthuizen, Ugo Amaldi, W. De Boer, E. Zevgolatakos, G. Sciolla, R. Keranen, J. Dolbeau, P. Bambade, P.S.L. Booth, O. Ullaland, Leif J. Jönsson, Francisco Matorras, D. Souza-Santos, M. Tyndel, E. K. Johansson, L. Lanceri, B. Loerstad, P. Herquet, R. Contri, T. Burgsmueller, Andrei Nomerotski, W. Van Doninck, Demetrios Loukas, A. Djannati, Kathy Huet, L. Di Ciaccio, Josef Hrubec, A. M. Segar, L.J. Carroll, J. Medbo, H. Klein, J. Cuevas Maestro, Oxana Smirnova, T. Todorov, M. Wielers, J. M. Lopez, K. Karafasoulis, K. Osterberg, Steinar Stapnes, N. Vassilopoulos, Paolo Morettini, O. Solovianov, J. Guy, Paul Dauncey, N. Demaria, A. Di Diodato, Fabio Cossutti, J. G. Loken, S. Hoorelbeke, G. Valenti, Paolo Ronchese, V.A. Uvarov, F. Fontanelli, Tim Adye, Charles Bricman, B. Franek, M. L. Turluer, D. Reid, O. Klapp, W. Kucewicz, Valeriy Pozdniakov, R. Alemany, Per Jönsson, W. Bonivento, H. Herr, L. G. Tkatchev, A. Seitz, P. Sponholz, Göran Jarlskog, M. Berggren, Kerem Cankocak, G. Damgaard, A. Grefrath, C. De Saint-Jean, P. Beilliere, C. Defoix, Borge Svane Nielsen, Marc Winter, Robert S. Brown, Manolis Dris, V. Malychev, N. J. Kjaer, A. Sokolov, T. Lesiak, F. Fulda-Quenzer, R.A Brenner, F. Pierre, G. D. Alekseev, I. Stavitski, Wolfgang Adam, P. Roudeau, S. De Brabandere, C. Troncon, Ch. Jarlskog, P. Abreu, C. Joram, M. A. Bizouard, Paul Baillon, Vincent Hedberg, D. W. Lane, A. G. Frodesen, T. G M Malmgren, H. Wahlen, P. Goncalves, Gianni Zumerle, W. D. Apel, Krzysztof Nawrocki, L. Bugge, Lydia Roos, E. Graziani, O. Yushchenko, D. Zontar, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, J. Baudot, J. Garcia, R. Sekulin, J. M. Brunet, F. Simonetto, Krzysztof Doroba, D. Gele, J. Drees, A. J. Camacho Rozas, D. Z. Toet, C. Green, G. Tristram, M. Verlato, G. Ekspong, J. Van Eldik, P. Bruckman, L.N. Gerdyukov, Heinz Pernegger, Alberto Benvenuti, O. Barring, Evangelos Gazis, A. Baroncelli, I. Ripp, P. Siegrist, G. Leder, Yu. Belokopytov, Z. Hajduk, J. N. Jackson, R. Janik, K. Kurvinen, V. Gracco, B. Åsman, J-C. Marin, T. Moa, T. S. Hill, G. Maehlum, R. Henriques, K. H. Becks, E. Vallazza, Peter Kluit, Maciej Górski, J.R. Mahon, P. Van Dam, Patrick Jarry, G. Rinaudo, J. Salt, J. Rames, Guy Wilkinson, M. Dracos, L. Chaussard, R. Gokieli, V. Lefebure, M. Gunther, P. Poropat, Andromachi Tsirou, P. N. Ratoff, Juan Abel Barrio, M. Mc Cubbin, K. Hultqvist, Rafael Marco, K. Woschnagg, Maria Elena Pol, P. A. Fischer, Juergen Thomas, D. Crennell, Andre Augustinus, W. Krupinski, P. Gunnarsson, Spyros Tzamarias, S. Katsanevas, A. Klovning, Amiran Tomaradze, P. Kokkinias, Ph. Charpentier, C. De La Vaissiere, Dietrich Liko, P. Privitera, G. Smadja, B. Golob, Rupert Leitner, M. Battaglia, G. Piana, G. Matthiae, U. Mjoernmark, C. Bosio, D. Y. Bardin, M. Karlsson, S. Simonetti, P. V. Chliapnikov, G. Gopal, M. Begalli, D. Bertrand, V. Obraztsov, B. Erzen, H. J. Hilke, A. Markou, J. J. Hernandez, T. Buran, Markus Elsing, G. W. Van Apeldoorn, Chariclia Petridou, L. De Paula, E. Falk, C. K. Legan, Jiri Chudoba, M. Davenport, R. Silvestre, W.S.C. Williams, P. Antilogus, H. T. Phillips, Vladimir Cindro, Sandra Amato, A. Tilquin, S. Todorova, D. Vilanova, Pawel Jalocha, Barry King, Klaus Moenig, Fabrizio Parodi, C. Gaspar, A. Maio, V. Ruhlmann-Kleider, Branislav Sitar, T. A. Filippas, K. Belous, M. J. Bates, M. Reale, L. Serbelloni, M. A. Houlden, S. Marti i Garcia, L. Ventura, E. Cortina, I. Lippi, K. Yip, D Gamba, E. Spiriti, M. Regler, Daniel Treille, M. Bigi, R. Frühwirth, S. Cabrera, R. Lindner, Imad Baptiste Laktineh, J. H. Wickens, S. Squarcia, Toralf Bernhard Skaali, E. I. Rosenberg, T. Spassov, P. Delpierre, M. Witek, H. Saarikko, J. E. Augustin, D. Stampfer, V. Chorowicz, Marco Paganoni, J. Timmermans, J. Ridky, G. C. Zucchelli, F. Verbeure, I. Roncagliolo, P. Gris, Olga Botner, C. Parkes, Krzysztof Korcyl, G. Myatt, L. Vitale, D. Wicke, Javier Sánchez, P. Seager, Nikita Smirnov, Antonios Leisos, D. Radojicic, Georgios Fanourakis, C. Martinez-Rivero, G. Transtromer, Chiara Meroni, F. Carena, B. Stugu, V. Lepeltier, M. Gandelman, Carmen García, Christine Kourkoumelis, P. Lutz, E. Dahl-Jensen, R. Ehret, J. P. Gerber, P. Niss, Paolo Checchia, G. Vegni, Luiz Mundim, N. N. Khovanski, W. Bartl, R. Moeller, Reynald Pain, H. Foeth, V. Nikolaenko, L. K. Resvanis, Ph. Gavillet, M. Kaiser, M. Pernicka, Phillip Allport, M. Mazzucato, Jesus Marco, G. Lenzen, R. Strub, C. Caso, F. Martinez-Vidal, V. Kostioukhine, Massimo Caccia, M. Koratzinos, G. Della Ricca, J. MacNaughton, G. Barker, B. Tome, Th. D. Papadopoulou, P. Juillot, B. Ueberschaer, Claire Bourdarios, P. Paganini, P. B. Renton, J. P. Laugier, M. Nieuwenhuizen, A. De Angelis, P. Collins, Maurizio Canepa, J. Libby, F. Zach, M. Pimenta, Yu. Sedykh, Pierre Billoir, T. Podobnik, Daniel Bloch, B. A. Khomenko, A. Stocchi, S. S. Meyer, B. Marechal, E. C. Katsoufis, Ahmimed Ouraou, H. B. Crawley, Marta Calvi, Francesco Navarria, N. Pukhaeva, Vincenzo Canale, Geoffrey Smith, H. Mueller, P. Langefeld, Cristian Stanescu, P. Branchini, J. Dahm, L. Gorn, Vaclav Vrba, Hans Dijkstra, H. Schneider, W. Da Silva, W. A. Mitaroff, Mogens Dam, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, S. Fichet, R. Chierici, Mario Sannino, F. Hahn, R. Sosnowski, P. Vincent, F. Naraghi, R. Orava, D. Edsall, G. Grosdidier, Alessandra Romero, A. Ruiz, M. A E Schyns, A. Onofre, G. Eigen, B. Bouquet, Josef Strauss, V. Chabaud, W. Venus, R. Nicolaidou, D. Zavrtanik, I. Kronkvist, A. N. Sisakian, A. Sadovsky, Manfred Krammer, M. Michelotto, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université 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), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, UCL - SST/IRMP - Institut de recherche en mathématique et physique, LEP (IHEF, IoP, FNWI), Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G, Alemany, R, Allport, P, Almehed, S, Amaldi, U, Amato, S, Andreazza, A, Andrieux, M, Antilogus, P, Apel, W, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbi, M, Bardin, D, Barker, G, Baroncelli, A, Barring, O, Barrio, J, Bartl, W, Bates, M, Battaglia, M, Baubillier, M, Baudot, J, Becks, K, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, A, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, M, Billoir, P, Bizouard, M, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Bozzo, M, Branchini, P, Brand, K, Brenke, T, Brenner, R, Bricman, C, Brown, R, Bruckman, P, Brunei, J, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho Rozas, A, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G, Chen, M, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J, Crawley, H, Crennell, D, Crosetti, G, Cuevas Maestro, J, Czellar, S, Dahl-Jensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Dauncey, P, Davenport, M, da Silva, W, Defoix, C, Deghorain, A, Delia 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, di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K, Dris, M, Durand, J, Edsall, D, Ehret, R, Eigen, G, Ekelof, T, Ekspong, G, Elsing, M, Engel, J, Erzen, B, Falk, E, Fanourakis, G, Fassouliotis, D, Feindt, M, Ferrari, P, Ferrer, A, Fichet, S, Filippas, T, Firestone, A, Fischer, P, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B, Frenkiel, P, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Gerber, J, Gerdyukov, L, Gokieli, R, Golob, B, Goncalves, P, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S, Gunnarsson, P, Gunther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F, Hedberg, V, Henriques, R, Hernandez, J, Herquet, P, Herr, H, Hessing, T, Heuser, J, Higon, E, Hilke, H, Hill, T, Holmgren, S, Holt, P, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Jonsson, L, Jonsson, P, Joram, C, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Katsanevas, S, Katsoufis, E, Keranen, R, Khokhlov, Y, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klapp, O, Klein, H, Klovning, A, Kluit, P, Knoblauch, D, Kokkinias, P, Konopliannikov, A, Koratzinos, M, Korcyl, K, Kostioukhine, V, Kourkoumelis, C, Krammer, M, Kreuter, C, Kronkvist, I, Krumstein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D, Langefeld, P, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, C, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Maehlum, G, Mahon, J, Maio, A, Malmgren, T, Malychev, V, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, 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, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Naraghi, F, Navarria, F, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, A, Oberschulte-Beckmann, W, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pages, P, Pain, R, Palka, H, Papadopoulou, T, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P, Read, A, Reale, M, Rebecchi, P, Redaelli, N, Regler, M, Reid, D, Reinhardt, R, Renton, R, Resvanis, L, Richard, F, Richardson, J, Ridky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, R, Roos, L, Rosenberg, E, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sadovsky, A, Sahr, O, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M, Sciolla, G, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Seitz, A, Sekulin, R, Serbelloni, L, Shellard, R, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sisakian, A, Sitar, B, Skaali, T, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Solovianov, O, Sosnowski, R, Souza-Santos, D, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, S, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tavernet, J, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L, Todorov, T, Todorova, S, Toet, D, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, M, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, van Apeldoorn, G, van Dam, P, van Doninck, W, van Eldik, J, van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, L, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weilhammer, P, Weiser, C, Wetherell, A, Wicke, D, Wickens, J, Wielers, M, Wilkinson, G, Williams, W, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O, Zach, F, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zito, M, Zontar, D, Zucchelli, G, and Zumerle, G
Subjects: COLLISIONS, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, 01 natural sciences, BOSON MASS, ROOT-S=1.8 TEV, COUPLINGS, Partícules (Física nuclear), Standard Model, Interpretation (model theory), Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Detectors de radiació, DELPHI, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, LARGE ELECTRON POSITRON COLLIDER, Cross section (geometry), PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$, and observed 29 events that are considered as candidates for W-pair production. From these, a cross-section for the doubly resonant $e^+e^-\to\mathrm{WW}$ process of $3.67~^{+0.97}_{-0.85} \pm 0.19{\mathrm{~pb}}$ has been measured. Within the Standard Model, this cross-section corresponds to a mass of the W-boson of ${\mathrm{80.40~\pm~0.44~(stat.)~\pm~0.09~(syst.) ~\pm 0.03~(LEP)~GeV}}/c^2$. Alternatively, if $m_{\mathrm{W}}$ is held fixed at its current value determined by other experiments, the observed cross-section is used to obtain limits on trilinear ${\mathrm{WWV (V \equiv \gamma, Z)}}$ couplings.
Published: 1997
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41. Observation of a fully reconstructed pair with long proper lifetimes in a high resolution hydrogen bubble chamber and the European hybrid spectrometer

Author: Luciano Barone, P. F. Loverre, P. Lipari, A. Subramanian, F. Marchetto, J. Rubio, M. Mazzucato, G. Cooremans-Bertrand, A. Bergier, W. Bartl, C. Dionisi, Paolo Bagnaia, A. Michalon, Alain Hervé, Edoardo Castelli, D. Z. Toet, E. Menichetti, L. Robb, P. Poropat, R. Bizzarri, P. Herquet, E. P. Kistenev, L. Zanello, F. Hartjes, M. Aguilar-Benitez, S. Reucroft, A. Ferrando, M. Cresti, K. Paler, H. Leutz, L. Gatignon, N. Kurtz, D. Crennel, Marco Sessa, F. Etienne, Clara Troncon, Jacques Lemonne, Paolo Rossi, G. Zholobov, C. Voltolini, Pierre Vilain, P. V. Chliapnikov, P. Ladron de Guevara, C. Fisher, A. Stergiou, B. Adeva, P. Hughes, J. Kesteman, E. Johansson, H. Dibon, Stefaan Tavernier, G. Zumerle, B. Baldo, M. E. Michalon-Mentzer, D. Zanello, J. H. Wickens, J. Dumarchez, P. Porth, M. Boratav, Sven Gösta Nilsson, D. Kuhn, M. C. Touboul, D. Pascoli, Fernand Grard, J. M. Lesceux, F. Marzano, T. Moa, A.-M. Touchard, Paul Lecoq, R. Frühwirth, L. Peruzzo, G. Ciapetti, P. Pilette, Giorgio Borreani, L. Ventura, L. Montanet, S. O. Holmgren, Josef Hrubec, Pierluigi Zotto, J-C. Marin, Paolo Checchia, E. Di Capua, W. Kittel, J. Dolbeau, G. Neuhofer, M. Regler, F. Bruyant, M. Markytan, W.W.M. Allison, Alessandro Bettini, Alan Poppleton, F. Crijns, H. K. Nguyen, G. Piredda, G. Sartori, M. Van Immerseel, and B. F. Poljakov
Subjects: Physics, Nuclear and High Energy Physics, Large Hadron Collider, Photon, Spectrometer, Resolution (electron density), Momentum, Nuclear physics, Lead glass, visual_art, visual_art.visual_art_medium, Hydrogen bubble, Atomic physics, Beam (structure)
Abstract: In an experiment with 360 GeV/ c π − beam at the CERN SPS using the high resolution hydrogen bubble chamber LEBC and the European Hybrid Spectrometer, an event has been observed of the type π − p → D 0 D 0 + 8 prongs. The fully reconstructed decay modes are D 0 → K − π + π 0 π 0 and D 0 → K + π + π − π − , with all six charged tracks being detected in the spectrometer and all four photons from the π 0 decays detected in the lead glass gamma detection system. The D 0 has momentum 119.0 ± 0.6 GeV/ c , x F = 0.31, length 4.1 ± 0.1 mm and proper lifetime (2.1 ± 0.1) × 10 −13 s. The D 0 has momentum 78.5 ± 0.3 GeV/ c , x F = 0.19, length 7.5 ± 0.1 mm and proper lifetime (5.9 ± 0.1) × 10 −13 s.
Published: 1981
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42. The effective-energy dependence of the charged particle's multiplicity in p/π+/K+ interactions on protons at 147 GeV/c

Author: L. Bachman, R. Yaari, A. Shapira, P.F. Jacques, Sergio P Ratti, Yong-Shi Wu, Fernand Grard, M. Schouten, E.E. Ronat, D. H. Brick, P. C. Trepagnier, E. Calligarich, M. Elahy, H. O. Cohn, R. I. Hulsizer, J. M. Lesceux, W.W. Neale, V. Kistiakowsky, L. Berny, W. J. Metzger, Shlomo Dado, R. T. Van de Walle, T. A. J. Frank, P. Lutz, R. Windmolders, U. Karshon, E. B. Brucker, R. K. Yamamoto, A. Pevsner, Odette Benary, R. Heifetz, J. Grunhaus, R. Dimarco, M. Widgoff, Richard E. Ansorge, D. Huang, T. L. Watts, C. Pols, H. Debock, J. Hanton, I. A. Pless, S. Toaff, R.A. Burnstein, Y. Eisenberg, R. Steiner, F. Crijns, W. M. Bugg, P. E. Stamer, R.J. Plano, S. Taylor, S. H. Oh, C. Castoldi, E. L. Koller, W. Kittel, Aharon Levy, J. Goldberg, A. M. Shapiro, P. Haridas, P. Lucas, S. Tether, P. Herquet, T. Handler, G. T. Condo, Gideon Alexander, H. A. Rubin, D. Hochman, P. Pilette, H. Rudnicka, V. Suchorebrow, M. Kalelkar, E. L. Hart, G. Yekutieli, D. R. Ward, E.D. Alyea, R. Dolfini, H. D. Taft, G. Bressi, V. Henri, A. H. Rogers, E. S. Hafen, T. B. Stoughton, B. M. Whyman, J. T. Bober, C. Y. Chien, and T. Ludlam
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Effective energy, Invariant mass, Multiplicity (chemistry), Total energy, Charged particle, Fermi Gamma-ray Space Telescope
Abstract: The energy dependence of the average of the charged multiplicity and its dispersion in π + /K + /p interaction on protons at 147 GeV/ c is found to be the same as in e + e − annihilations if an “effective energy” variable is used instead of the total energy. The effective energy S eff is defined as the invariant mass of all secondaries left after the two leading particles have been removed. Fitting the expression aS eff b to the average charge multiplicity 〈 n ch 〉, we find the power b to be in good agreement with the value of 0.25 predicted by Fermi's statistical model and by Landau's hydrodynamical model.
Published: 1981
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43. Single intermediate vector boson production in e+e−collisions at s=183and 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., Anashkin, E., 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., Bellunato, T.F., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bilenky, M.S., Bloch, D., Blom, H.M., Bol, L., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R.A., Bruckman, P., Brunet, J.-M., Bugge, L., Buschmann, P., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M.V., Cattai, A., Cavallo, F.R., Chapkin, M., Charpentier, 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., Croix, J., Crosetti, G., Cuevas Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., 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., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.-P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., 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., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Haug, S., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hertz, O., Higon, E., Holmgren, S.-O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., 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., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kucharczyk, M., Kurowska, J., Lamsa, J.W., Laugier, J.-P., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.-C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Merle, E., Meroni, C., Meyer, W.T., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjoernmark, U., Moa, T., Moch, M., Moenig, K., Monge, M.R., Montenegro, J., Moraes, D., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mundim, L.M., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Nicolaidou, R., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, A.G., Onofre, A., Orava, R., 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., Perepelitsa, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M.E., Polok, G., Poropat, P., 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., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salmi, L., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwanda, C., Schwemling, Ph., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Segar, A.M., Sekulin, R., Sette, G., 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., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., 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., 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., Zumerle, G., and Zupan, M.
Abstract: The cross sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52 pb–1and 154 pb–1collected by the experiment at centre-of-mass energies of 182.6 GeV and 188.6 GeV, respectively. The cross sections for the reactions were determined in limited kinematic regions. The results found are in agreement with the Standard Model predictions for these channels.
Published: 2001
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44. Energy dependence of inclusive spectra in e+e−annihilation

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, Yu., 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., 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., 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., 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., 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, 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., Gorski, M., Gouz, Yu., 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., Laugier, J-P., Lauhakangas, R., 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., 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, 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., 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., 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., 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., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zucchelli, G.C., and Zumerle, G.
Abstract: Inclusive charged hadron distributions as obtained from the DELPHI measurements at 130, 136, 161, 172 and 183 GeV are presented as a function of the variables rapidity, ξp, pand transversal momenta. Data are compared with event generators and with MLLA calculations, in order to examine the hypothesis of local parton hadron duality. The differential momentum spectra show an indication for coherence effects in the production of soft particles. The relation between the energy dependence of the charged multiplicity and the rapidity distribution is examined.
Published: 1999
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45. A search for invisible Higgs bosons produced in e+e−interactions at LEP 2 energies

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, Yu., 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., 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., 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., 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., 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, 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., Gorski, M., Gouz, Yu., 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., 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., 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, 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., 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., 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., 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., 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., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zucchelli, G.C., and Zumerle, G.
Abstract: Searches for HZ production with the Higgs boson decaying into an invisible final state have been performed with the data collected by the DELPHI experiment up to the centre-of-mass energy of 183 GeV. The hadronic and muon pair final states of the Z boson were analysed. From the absence of signal, upper limits on the cross-section and the corresponding Higgs boson mass limits were set at 95% confidence level. The results are interpreted as excluded parameter regions in the framework of the minimal supersymmetric standard model and in the simplest Majoron model with one Higgs doublet and one Higgs singlet field.
Published: 1999
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46. Measurements of the trilinear gauge boson couplings WWV(V≡γ,Z) in e+e−collisions at 183 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., Alderweireld, T., Alekseev, G.D., Alemany, R., Allmendinger, T., Allport, P.P., Almehed, S., Amaldi, 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, Yu., 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, Yu., 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, 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Abstract: Measurements of the trilinear gauge boson couplings WWγand WWZare presented from data taken by DELPHI in 1997 at an energy of 183 GeV. From a study of the reactions e+e−→W+W−, e+e−→Weνand e+e−→ννγ, values are obtained for Δg1Zand Δκγ, the differences of the WWZcharge coupling and of the WWγdipole couplings from their Standard Model values, and for λγ, the WWγquadrupole coupling. The observations are consistent with the predictions of the Standard Model.
Published: 1999
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