1. A search for heavy charged and neutral leptons from Z0 decays
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Dimitri Bourilkov, R.J. Wu, M. MacDermott, Raffaello D'Alessandro, M.L. Chen, P.J. Li, C. Grinnell, M. A. Niaz, Leonardo Merola, A. Gordeev, C.H. Ye, R. Starosta, V. Commichau, G.Q. Hu, D. Pandoulas, T. Azemoon, P. Extermann, B. Ille, Marcella Diemoz, C. Buisson, A. Böhm, I. Leedom, H. Hofer, K. L. Tung, M. Möller, B. P. Roe, G. Von Dardel, A. Degré, T. Böhringer, G. Morand, J. Behrens, H. Anderhub, C.R. Wang, Q.Y. Yang, Z.W. Yin, U. Uwer, Fridolin Dittus, Z.Y. Lin, O. Kornadt, M. Fukushima, J.C. Sens, R. Raghavan, Harvey B Newman, J. Lettry, Claudio Luci, Elisabetta Gallo, C.F. He, Egidio Longo, S. Shevchenko, A. C. König, Laurent Vuilleumier, E. Isiksal, J.P. Martin, A. Chen, F. Ferroni, S. Beingessner, D. DiBitonto, A. Bujak, R. L. Sumner, F. Tonisch, G. H. Wang, W. Lohmann, W. Wallraff, D. Perret-Gallix, M. Guanziroli, J. Wenninger, J.P. Burq, Ph. Rosselet, M. Steuer, Zm Wang, G. Forconi, B. Stöhr, C. Zaccardelli, M. Pohl, M. M. Ilyas, R. Leiste, X.G. Li, Yu. Kamyshkov, D. Boutigny, P. K. Malhotra, H. A. Rizvi, H.J. Schreiber, L. J. Gutay, U. Roeser, R. Fabbretti, R. de Asmundis, J. Weber, L.S. Hsu, J. Salicio, Tariq Aziz, Marco Meschini, J. Fay, K. Schultze, Yu. Galaktionov, H. van der Graaf, M. Zeng, D.N. Mao, S. Reucroft, U. Becker, M. Schöntag, Mw Gruenewald, H. Haan, Ren-Yuan Zhu, Luciano Barone, R. Liu, R.C. Ball, Adrian Biland, V. Lalieu, D.S. Yan, H. Fenker, R. T. Van de Walle, G.B. Mills, K.S. Kumar, R. Weill, M. Gailloud, A.M. Cartacci, D. Kirkby, E. Thomas, H.T. Li, T. Spickermann, G. Herten, L. Urbàn, G. Landi, M. J. Glaubman, F.C. Erné, C. G. Yang, I. Scott, L. Li, G. Faber, H.F. Chen, J. Alcaraz, A. Gurtu, Aa Vorobyov, Y.J. Pei, M. Chemarin, J.Y. Liao, R.A. Khan, F. J. Eppling, L. W. Jones, A. Kunin, E. Valente, E. Jagel, Y. Zeng, P. Vikas, V. Shevchenko, T. Foreman, H.R. Dimitrov, M. Lenti, P. Arce, M. Bocciolini, K. Freudenreich, P.V.K.S. Baba, G. Sartorelli, H. L. Zhuang, D. Goujon, D. McNally, S. M. Ting, J.M. You, Mingshui Chen, A. L. Anderson, D. Duchesneau, M. Maire, E. Nagy, A. Hasan, M. Cerrada, Z. Ren, C. Chen, Vincenzo Innocente, N. Smirnov, F. Marzano, I. Vetlitsky, D. Lanske, B. Bertucci, W. J. Metzger, G. Viertel, J.M. Qian, C. Li, I. Vorobiev, Z.M. Wang, K. N. Qureshi, Y. D. Xu, P. Blömeke, P. Lebrun, X. Leytens, V. Shoutko, Crisostomo Sciacca, D. Zhang, Marco Pieri, A. Engler, Jd Burger, K. Sudhakar, C. Rippich, S. Morganti, G. Rahal-Callot, G.G.G. Massaro, Nicanor Colino, H. El Mamouni, J. G. Branson, M. Capell, J. A. Bakken, Samuel C.C. Ting, G. Fernandez, X. Lue, K.S. Yang, L. Romero, Federico Carminati, P. McBride, U. Micke, K. Lübelsmeyer, Z.Z. Xu, X. Y. Cui, J. Tòth, S. Röhner, Y. Mi, H. R. Gustafson, Y. S. Lu, S. N. Ganguli, J. Schwenke, Steven Goldfarb, F. Carbonara, M. Tonutti, J. M. Salicio, R.B. Sutton, G. Passaleva, D.H. Zhang, S. Lökös, M.C. Chen, U.K. Chaturvedi, Konrad Deiters, G. Sauvage, A. Malinin, Th. Rombach, R. Wilhelm, J. H. Field, W. Krenz, G. Schwering, An.A. Vorobyov, T. Matsuda, Alberto Aloisio, S. C. Tonwar, L. Martinez, L. Niessen, S. Patricelli, F. L. Linde, W. Böhlen, Simonetta Gentile, K. Hilgers, M. Schneegans, Jj Blaising, O. Adriani, Thomas Ferguson, T. Kramer, Kenneth Francis Read, R. Morand, Q. Ye, V. Schegelsky, G. Conforto, L. Z. Sun, V. Pojidaev, Th. Meinholz, Lucas Taylor, K. Hangarter, S.J. Fan, Sc Yeh, A. Klimentov, S.S. Gau, J.F. Li, T. Angelov, C. Maña, H. Vogt, X. W. Tang, K. Lanius, I. Sheer, G. Yang, Jian Wang, P. A. Piroué, J. Rose, C. Willmott, Mariagrazia Alviggi, D. Linnhofer, W. Friebel, M. Bourquin, L. Baksay, Speranza Falciano, G. Coignet, B. N. Jin, K. Strauch, P. Duinker, P.G. Seiler, F. Diez-Hedo, Peter Denes, V. Morgunov, Bolek Wyslouch, Qian Wang, X.L. Wang, J. Bao, Paolo Bagnaia, G. Gratta, R. Mount, V. Koutsenko, P. Schmitz, B. Borgia, L. Zehnder, J.B. Ye, C.Y. Chien, S. Banerjee, Zp Zhang, A. van Laak, W. Ruckstuhl, D. P. Stickland, H. Suter, Y.F. Wang, Y. Mir, S. Rosier-Lees, R. Malik, A. Pevsner, Barry Blumenfeld, Antonino Zichichi, J.M. Lubbers, U. Herten, Ph Fisher, H. Rykaczewski, Q. Z. Li, Y. Karyotakis, X.R. Shi, L. Antonov, I. Clare, J. Busenitz, S. Schulte, V. Kumar, J. Krizmanic, A. Marchionni, Q. An, M. Dhina, M. Micke, V. Plyaskin, T. Hebbeker, D. J. Schotanus, P. Levchenko, V.R. Krastev, E. Gonzalez, M. Röhner, N. Produit, J. Ulbricht, C. Spartiotis, S. Lanzano, Bernardo Adeva, A. A. Syed, Howard A. Stone, T.S. Dai, Q. Fan, B.C. Stringfellow, B. Spiess, V. Khoze, F. Crijns, R. Rosmalen, G. Finocchiaro, Marcel Merk, B.Z. Yang, J. Perrier, R. Bizzarri, Ian Brock, F. DeNotaristefani, L. Leistam, M. Kaur, G. Hu, B. Monteleoni, G. Chiefari, W. Kittel, P. Berges, R. Sehgal, W.G. Ma, M. Vivargent, C. Dionisi, Alain Hervé, A. Bay, A. Arefiev, Carlo Civinini, M. Maolinbay, M. Aguilar-Benitez, I. Duran, Herwig Schopper, M. White, F. Wittgenstein, L. Ludovici, E. Drago, Sau Lan Wu, T. Driever, R. Schulte, A. Kuhn, M. Harris, J.F. Zhou, S. Hancke, Y. H. Chang, George Alverson, Z.Q. Yang, G. Trowitzsch, Helmut Vogel, Kajari Mazumdar, S. Khokhar, E. Dénes, Xd Cai, F. Cesaroni, D. Ren, H. Fesefeldt, U. Vikas, A. Contin, J. Mnich, M. Hebert, Panos A Razis, J. Schütte, M. Sachwitz, F. Bruyant, R. Dolin, P. Garcia-Abia, J. M. Le Goff, K. Shmakov, Z.F. Gong, M. Wadhwa, J. A. Rubio, T. McMahon, E. Shumilov, R. Magahiz, J. D. Swain, A. Savin, D. Wright, C. Camps, P. Le Coultre, D. Schmitz, D. Antreasyan, G. Paternoster, G. Mirabelli, P. Marchesini, Robert Clare, D. Luckey, Gy L. Bencze, Y.G. Wu, Paul Lecoq, R. W. Kraemer, M. Napolitano, Piero Spillantini, H. S. Chen, S.X. Wu, Y.P. Tong, E. Tarkovsky, A. Sopczak, T.J. Wenaus, H. Akbari, Y.F. Mao, Lamberto Luminari, J. Berdugo, P. Göttlicher, J. Fehlmann, Z.L. Xue, Pierre Lecomte, M. Vollmar, Charles Timmermans, O. Rind, Hafeez R. Hoorani, M. Fabre, Georgi Sultanov, V. P. Andreev, G.J. Bobbink, B.L. Betev, G. M. Chen, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, and IHEF (IoP, FNWI)
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Sterile neutrino ,010308 nuclear & particles physics ,Astrophysics::High Energy Astrophysical Phenomena ,Electron–positron annihilation ,High Energy Physics::Phenomenology ,Dirac (software) ,01 natural sciences ,Lower limit ,Nuclear physics ,MAJORANA ,grey literature ,Citation analysis ,0103 physical sciences ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,High Energy Physics::Experiment ,Neutrino ,Nuclear Experiment ,010306 general physics ,GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries) ,Particle Physics - Experiment ,Lepton - Abstract
We have searched for charged and neutral leptons. We exclude stable Dirac neutrinos below 42.8 GeV and stable Majorana neutrinos below 34.8 GeV. From a search for unstable neutrinos we exclude masses below 46.4 GeV (Dirac) and below 45.1 GeV (Majorana). We exclude all masses of sequential charged and neutral leptons, except if both masses are larger than 42.8 GeV (for stable Dirac neutrinos). All mass limits correspond to 95% CL.
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- 1990