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Search for sleptons in e+e- collisions at √s = 183 to 189 GeV

Abreu, P.; Adam, W.; Adye, T.; Adzic, P.; Ajinenko, I.; Albrecht, Z.; Alderweireld, T.; Alekseev, G. D.; Alemany, R. and Allmendinger, T., et al. (2001) In European Physical Journal C 19(1). p.29-42
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 m ≤ 87... (More)

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 m ≤ 87 GeV/c2, mμ̃ ≤ 80 GeV/c2 and mτ̃ 75 GeV/c2, respectively, for values of μ=-200 GeV/c2 and tanβ=1.5.

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European Physical Journal C
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19
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14 pages
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Springer
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1434-6044
DOI
10.1007/s100520100595
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English
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2018-03-05 21:18:18
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@article{4a54814d-6570-468b-b397-65ae084d9e55,
  abstract     = {<p>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<sup>-1</sup> 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 → ℓx̃<sup>0</sup> <sub>2</sub> → ℓγx̃<sup>0</sup> <sub>1</sub>), 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 m<sub>ẽ</sub> ≤ 87 GeV/c<sup>2</sup>, m<sub>μ̃</sub> ≤ 80 GeV/c<sup>2</sup> and m<sub>τ̃</sub> 75 GeV/c<sup>2</sup>, respectively, for values of μ=-200 GeV/c<sup>2</sup> and tanβ=1.5.</p>},
  author       = {Abreu, P. and Adam, W. and Adye, T. and Adzic, P. and Ajinenko, I. and Albrecht, Z. and Alderweireld, T. and Alekseev, G. D. and Alemany, R. and Allmendinger, T. and Allport, P. P. and Almehed, S. and Amaldi, U. and Amapane, N. and Amato, S. and Anassontzis, E. G. and Andersson, P. and Andreazza, A. and Andringa, S. and Anjos, N. and Antilogus, P. and Apel, W. D. and Arnoud, Y. and Åsman, B. and Augustin, J. E. and Augustinus, A. and Baillon, P. and Ballestrero, A. and Bambade, P. and Barao, F. and Barbiellini, G. and Barbier, R. and Bardin, D. Y. and Barker, G. and Baroncelli, A. and Battaglia, M. and Baubillier, M. and Becks, K. H. and Begalli, M. and Behrmann, A. and Belokopytov, Y. and Benekos, N. C. and Benvenuti, A. C. and Berat, C. and Berggren, M. and Berntzon, L. and Bertrand, D. and Besancon, M. and Besson, N. and Bilenky, M. S. and Bizouard, M. A. and Bloch, D. and Blom, H. M. and Bol, L. and Bonesini, M. and Boonekamp, M. and Booth, P. S.L. and Borisov, G. and Bosio, C. and Botner, O. and Boudinov, E. and Bouquet, B. and Bourdarios, C. and Bowcock, T. J.V. and Boyko, I. and Bozovic, I. and Bozzo, M. and Bracko, M. and Branchini, P. and Brenner, R. A. and Bruckman, P. and Brunet, J. M. and Bugge, L. and Buschmann, P. and Caccia, M. and Calvi, M. and Camporesi, T. and Canale, V. and Carena, F. and Carroll, L. and Caso, C. and Castillo Gimenez, M. V. and Cattai, A. and Cavallo, F. R. and Charpentier, Ph and Checchia, P. and Chelkov, G. A. and Chierici, R. and Chliapnikov, P. and Chochula, P. and Chorowicz, V. and Chudoba, J. and Cieslik, K. and Collins, P. and Contri, R. and Cortina, E. and Cosme, G. and Cossutti, F. and Costa, M. and Crawley, H. B. and Crennell, D. and Croix, J. and Crosetti, G. and Cuevas Maestro, J. and Czellar, S. and D'Hondt, J. and Dalmau, J. and Davenport, M. and Da Silva, W. and Della Ricca, G. and Delpierre, P. and Demaria, N. and de Angelis, A. and de Boer, W. and de Clercq, C. and de Lotto, B. and de Min, A. and de Paula, L. and Dijkstra, H. and Di Ciaccio, L. and Doroba, K. and Dracos, M. and Drees, J. and Dris, M. and Eigen, G. and Ekelof, T. and Ellert, M. and Elsing, M. and Engel, J. P. and Espirito Santo, M. and Fanourakis, G. and Fassouliotis, D. and Feindt, M. and Fernandez, J. and Ferrer, A. and Ferrer-Ribas, E. and Ferro, F. and Firestone, A. and Flagmeyer, U. and Foeth, H. and Fokitis, E. and Fontanelli, F. and Franek, B. and Frodesen, A. G. and Fruhwirth, R. and Fulda-Quenzer, F. and Fuster, J. and Galloni, A. and Gamba, D. and Gamblin, S. and Gandelman, M. and Garcia, C. and Gaspar, C. and Gaspar, M. and Gasparini, U. and Gavillet, Ph and Gazis, E. N. and Gele, D. and Geralis, T. and Gerdyukov, L. and Ghodbane, N. and Gil, I. and Glege, F. and Gokieli, R. and Golob, B. and Gomez-Ceballos, G. and Goncalves, P. and Gonzalez Caballero, I. and Gopal, G. and Gorn, L. and Gouz, Yu and Gracco, V. and Grahl, J. and Graziani, E. and Grosdidier, G. and Grzelak, K. and Guy, J. and Haag, C. and Hahn, F. and Hahn, S. and Haider, S. and Hallgren, A. and Hamacher, K. and Hansen, J. and Harris, F. J. and Haug, S. and Hauler, F. and Hedberg, V. and Heising, S. and Hernandez, J. J. and Herquet, P. and Herr, H. and Hertz, O. and Higon, E. and Holmgren, S. O. and Holt, P. J. and Hoorelbeke, S. and Houlden, M. and Hrubec, J. and Hughes, G. J. and Hultqvist, K. and Jackson, J. N. and Jacobsson, R. and Jalocha, P. and Jarlskog, Ch and Jarlskog, G. and Jarry, P. and Jean-Marie, B. and Jeans, D. and Johansson, E. K. and Jonsson, P. and Joram, C. and Juillot, P. and Jungermann, L. and Kapusta, F. and Karafasoulis, K. and Katsanevas, S. and Katsoufis, E. C. and Keranen, R. and Kernel, G. and Kersevan, B. P. and Khokhlov, Yu and Khomenko, B. A. and Khovanski, N. N. and Kiiskinen, A. and King, B. and Kinvig, A. and Kjaer, N. J. and Klapp, O. and Kluit, P. and Kokkinias, P. and Kostioukhine, V. and Kourkoumelis, C. and Kouznetsov, O. and Krammer, M. and Kriznic, E. and Krumstein, Z. and Kubinec, P. and Kucharczyk, M. and Kurowska, J. and Lamsa, J. W. and Laugier, J. P. and Leder, G. and Ledroit, F. and Leinonen, L. and Leisos, A. and Leitner, R. and Lenzen, G. and Lepeltier, V. and Lesiak, T. and Lethuillier, M. and Libby, J. and Liebig, W. and Liko, D. and Lipniacka, A. and Lippi, I. and Loken, J. G. and Lopes, J. H. and Lopez-Fernandez, R. and Loukas, D. and Lutz, P. and Lyons, L. and MacNaughton, J. and Mahon, J. R. and Maio, A. and Malek, A. and Maltezos, S. and Malychev, V. and Mandl, F. and Marco, J. and Marco, R. and Marechal, B. and Margoni, M. and Marin, J. C. and Mariotti, C. and Markou, A. and Martinez-Rivero, C. and Marti i Garcia, S. and Masik, J. and Mastroyiannopoulos, N. and Matorras, F. and Matteuzzi, C. and Matthiae, G. and Mazzucato, F. and Mazzucato, M. and Mc Cubbin, M. and Mc Kay, R. and Mc Nulty, R. and Mc Pherson, G. and Merle, E. and Meroni, C. and Meyer, W. T. and Migliore, E. and Mirabito, L. and Mitaroff, W. A. and Mjoernmark, U. and Moa, T. and Moch, M. and Moenig, K. and Monge, M. R. and Montenegro, J. and Moraes, D. and Morettini, P. and Morton, G. and Mueller, U. and Muenich, K. and Mulders, M. and Mundim, L. M. and Murray, W. J. and Muryn, B. and Myatt, G. and Myklebust, T. and Nassiakou, M. and Navarria, F. L. and Nawrocki, K. and Negri, P. and Nemecek, S. and Neufeld, N. and Nicolaidou, R. and Niezurawski, P. and Nikolenko, M. and Nomokonov, V. and Nygren, A. and Obraztsov, V. and Olshevski, A. G. and Onofre, A. and Orava, R. and Osterberg, K. and Ouraou, A. and Oyanguren, A. and Paganoni, M. and Paiano, S. and Pain, R. and Paiva, R. and Palacios, J. and Palka, H. and Papadopoulou, Th D. and Pape, L. and Parkes, C. and Parodi, F. and Parzefall, U. and Passeri, A. and Passon, O. and Pavel, T. and Pegoraro, M. and Peralta, L. and Perepelitsa, V. and Pernicka, M. and Perrotta, A. and Petridou, C. and Petrolini, A. and Phillips, H. T. and Pierre, F. and Pimenta, M. and Piotto, E. and Podobnik, T. and Poireau, V. and Pol, M. E. and Polok, G. and Poropat, P. and Pozdniakov, V. and Privitera, P. and Pukhaeva, N. and Pullia, A. and Radojicic, D. and Ragazzi, S. and Rahmani, H. and Ratoff, P. N. and Read, A. L. and Rebecchi, P. and Redaelli, N. G. and Regler, M. and Rehn, J. and Reid, D. and Reinhardt, R. and Renton, P. B. and Resvanis, L. K. and Richard, F. and Ridky, J. and Rinaudo, G. and Ripp-Baudot, I. and Romero, A. and Ronchese, P. and Rosenberg, E. I. and Rosinsky, P. and Rovelli, T. and Ruhlmann-Kleider, V. and Ruiz, A. and Saarikko, H. and Sacquin, Y. and Sadovsky, A. and Sajot, G. and Salmi, L. and Salt, J. and Sampsonidis, D. and Sannino, M. and Savoy-Navarro, A. and Schwanda, C. and Schwemling, Ph and Schwering, B. and Schwickerath, U. and Scuri, F. and Seager, P. and Sedykh, Y. and Segar, A. M. and Sekulin, R. and Sette, G. and Shellard, R. C. and Siebel, M. and Simard, L. and Simonetto, F. and Sisakian, A. N. and Smadja, G. and Smirnov, N. and Smirnova, O. and Smith, G. R. and Sokolov, A. and Solovianov, O. and Sopczak, A. and Sosnowski, R. and Spassov, T. and Spiriti, E. and Squarcia, S. and Stanescu, C. and Stanitzki, M. and Stevenson, K. and Stocchi, A. and Strauss, J. and Strub, R. and Stugu, B. and Szczekowski, M. and Szeptycka, M. and Tabarelli, T. and Taffard, A. and Tegenfeldt, F. and Terranova, F. and Timmermans, J. and Tinti, N. and Tkatchev, L. G. and Tobin, M. and Todorova, S. and Tome, B. and Tonazzo, A. and Tortora, L. and Tortosa, P. and Treille, D. and Tristram, G. and Trochimczuk, M. and Troncon, C. and Turluer, M. L. and Tyapkin, I. A. and Tyapkin, P. and Tzamarias, S. and Ullaland, O. and Uvarov, V. and Valenti, G. and Vallazza, E. and Vander Velde, C. and van Dam, P. and van den Boeck, W. and van Eldik, J. and van Lysebetten, A. and van Remortel, N. and van Vulpen, I. and Vegni, G. and Ventura, L. and Venus, W. and Verbeure, F. and Verdier, P. and Verlato, M. and Vertogradov, L. S. and Verzi, V. and Vilanova, D. and Vitale, L. and Vlasov, E. and Vodopyanov, A. S. and Voulgaris, G. and Vrba, V. and Wahlen, H. and Washbrook, A. J. and Weiser, C. and Wicke, D. and Wickens, J. H. and Wilkinson, G. R. and Winter, M. and Witek, M. and Wolf, G. and Yi, J. and Yushchenko, O. and Zalewska, A. and Zalewski, P. and Zavrtanik, D. and Zevgolatakos, E. and Zimin, N. I. and Zintchenko, A. and Zoller, Ph and Zumerle, G. and Zupan, M.},
  issn         = {1434-6044},
  language     = {eng},
  number       = {1},
  pages        = {29--42},
  publisher    = {Springer},
  series       = {European Physical Journal C},
  title        = {Search for sleptons in e<sup>+</sup>e<sup>-</sup> collisions at √s = 183 to 189 GeV},
  url          = {http://dx.doi.org/10.1007/s100520100595},
  volume       = {19},
  year         = {2001},
}