Search for stable heavy charged particles in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV

Autor: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G
Přispěvatelé: 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), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 1997
Předmět:
Zdroj: Physics Letters B
Physics Letters B, Elsevier, 1997, 396, pp.315-326
Physics Letters B, 1997, 396, pp.315-326. ⟨10.1016/S0370-2693(97)00152-4⟩
ISSN: 0370-2693
Popis: 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 $\pm e$ and $\pm 2/3e$ particles in the range of 0.4-2.3 pb for masses from 45 to 84 GeV/$c^2$. Within supersymmetric extensions of the Standard Model, long-lived charginos with masses from 45 to 84 (80)~GeV/$c^2$ for high (low) sneutrino masses can be excluded at 95\% confidence level. %Mass limits for long-lived sleptons are obtained. %For selectrons no general mass limits can be given. Left-handed (right-handed) long-lived or stable smuons and staus with masses between 45 and 68 (65)~GeV/$c^2$ can be excluded at 95\% confidence level.
Databáze: OpenAIRE
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