학술논문

Search for sleptons in e+e- collisions at √s = 183 to 189 GeV
Document Type
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.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.Belokopytov, Y.Benekos, N. C.Benvenuti, A. C.Berat, C.Berggren, M.Berntzon, L.Bertrand, D.Besancon, M.Besson, N.Bilenky, M. S.Bizouard, M. A.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.Bourdarios, C.Bowcock, T. J.V.Boyko, I.Bozovic, I.Bozzo, M.Bracko, M.Branchini, P.Brenner, R. A.Bruckman, P.Brunet, J. M.Bugge, L.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.Charpentier, PhChecchia, 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, PhGazis, E. N.Gele, D.Geralis, T.Gerdyukov, L.Ghodbane, N.Gil, I.Glege, F.Gokieli, R.Golob, B.Gomez-Ceballos, G.Goncalves, P.Gonzalez Caballero, I.Gopal, G.Gorn, L.Gouz, YuGracco, 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, ChJarlskog, 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, YuKhomenko, 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-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.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.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, PhSchwering, 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.Solovianov, O.Sopczak, A.Sosnowski, R.Spassov, T.Spiriti, E.Squarcia, S.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.Vander Velde, C.van Dam, P.van den Boeck, W.van Eldik, J.van Lysebetten, A.van Remortel, N.van Vulpen, I.Vegni, G.Ventura, L.Venus, W.Verbeure, F.Verdier, P.Verlato, M.Vertogradov, L. S.Verzi, V.Vilanova, D.Vitale, L.Vlasov, E.Vodopyanov, A. 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, PhZumerle, G.Zupan, M.
Source
European Physical Journal C. 19(1):29-42
Subject
Naturvetenskap
Fysik
Subatomär fysik
Natural Sciences
Physical Sciences
Subatomic Physics
Language
English
ISSN
1434-6044
Abstract
Data taken by the DELPHI experiment at centre-of-mass energies of 183 GeV and 189 GeV with a total integrated luminosity of 212 pb-1 have been used to search for the supersymmetric partners of the electrons, muons, and taus in the context of the Minimal Supersymmetric Standard Model (MSSM). The decay topologies searched for were the direct decay (ℓ̃ → ℓx̃), producing acoplanar lepton pairs plus missing energy, and the cascade decay (ℓ → ℓx̃0 2 → ℓγx̃0 1), producing acoplanar lepton and photon pairs plus missing energy. The observed number of events is in agreement with Standard Model predictions. The 95% CL excluded mass limits for selectrons, smuons and staus are mẽ ≤ 87 GeV/c2, mμ̃ ≤ 80 GeV/c2 and mτ̃ 75 GeV/c2, respectively, for values of μ=-200 GeV/c2 and tanβ=1.5.