51. Measurement of g$_A$ and g$_V$ the neutral current coupling constants to leptons
- Author
-
R. Weill, L. Baksay, Y. Mi, R. Liu, Boleslaw Wyslouch, C.Y. Chien, E. Valente, K. Luebelsmeyer, A. Boehm, U. Micke, S. S. Gau, P.V.K.S. Baba, S. C. Tonwar, R. Mount, G. Viertel, P. J. Li, M. Guanziroli, A. L. Anderson, A. Arefev, E. Shumilov, J. Zoll, V. Shoutko, Thomas Ferguson, S. Morganti, Fridolin Dittus, John Krizmanic, Tariq Aziz, M. Tonutti, L.S. Hsu, Federico Carminati, Yu. Galaktionov, M. Vollmar, R. Leiste, J. Schwenke, X. Y. Cui, E. Dénes, G. Herten, Ying Wu, J. F. Zhou, P. Marchesini, J. Berdugo, J. Alcaraz, S.Y. Zhang, Ming Zeng, Jj Blaising, T. Kramer, T. Angelov, W. Friebel, G. Faber, Corinne Goy, D. Kaplan, U. Uwer, Y.F. Mao, A. Chen, R. T. Van de Walle, C-Q. Li, J. Salicio, G. Hu, P. Schmitz, Y. Peng, H. Haan, D. Harting, S. Patricelli, Cheng Chen, F.G. Hartjes, A. Kuhn, M. Roehner, F. de Notaristefani, D. Guesewell, X. L. Wang, S. Schulte, J. Busenitz, E. Nagy, C. Pols, L. Urbàn, Yu. Kamyshkov, Alexei Klimentov, M. Fabre, Carlos Willmott, Q. Ye, Jozsef Toth, Mw Gruenewald, Egidio Longo, I. Vetlitsky, S. Beingessner, W. Ruckstuhl, C. Camps, J. A. Bakken, Speranza Falciano, P. Bloemeke, D. P. Stickland, J. Lettry, Claudio Luci, Z. M. Wang, W. Boehlen, P. Schmitt, Crisostomo Sciacca, Dimitri Bourilkov, Zhuoxiang Ren, Marco Pieri, D. J. Schotanus, H. T. Li, C. Rippich, K. Freudenreich, R. Morand, Z. L. Xue, F. Cesaroni, X. Lue, U. K. Chaturvedi, Y. Mir, C. H. Ye, J. Onvlee, R.C. Ball, Adrian Biland, C. G. Yang, Elisabetta Gallo, J.M. Thenard, A.M. Cartacci, H.R. Dimitrov, Zhen Zhang, C. Dionisi, J. M. You, M.L. Chen, U. Becker, M. Gettner, J. Mnich, Alain Hervé, Raffaello D'Alessandro, C. Grinnell, K.D. Shmakov, S. J. Fan, N. Produit, Qi An, Y. S. Lu, Howard A. Stone, J. Y. Liao, T.S. Dai, J. D. Burger, G. Rahal-Callot, Leonardo Merola, W. Walk, G. Mirabelli, B. P. Roe, Chenliang Wang, Sandra Consuegra Rodríguez, Wen-Gan Ma, R. Bizzarri, S. Hancke, Ian Brock, M. M. Ilyas, A. Bay, D. Campana, a C. Koenig, A. Engler, Konrad Deiters, K.S. Yang, Th. Rombach, T. Azemoon, G. A. Yang, D.N. Mao, Simonetta Gentile, M. Capell, C. Souyri, B. Monteleoni, F. J. Eppling, L. W. Jones, C. Maña, V. Plyaskin, Marcella Diemoz, Piero Spillantini, D. S. Yan, W. Kittel, G. Von Dardel, Alberto Aloisio, A. Grimes, S. M. Ting, Carlo Civinini, J.M. Qian, M. Maolinbay, B. Stoehr, H. S. Fesefeldt, Jérôme Rose, R. A. Khan, G. Sauvage, Marcos Cerrada, K. Schultze, E. Tarkovsky, R. Wilhelm, Philip Kaaret, B. Borgia, F. Marzano, Kenneth Francis Read, G. Coignet, W. Krenz, P. Duinker, R. Fabbretti, X.G. Li, L. Leistam, S. Reucroft, D. Lanske, Th. Meinholz, M. Aguilar-Benitez, I. Duran, P. F. Klok, Sc Yeh, G. Fernandez, D. Pandoulas, G. Conforto, Oliver Kornadt, M. Pohl, Herwig Schopper, D. Antreasyan, H. Fenker, W. Wallraff, B. Auroy, Guofan Hu, H. F. Chen, Vincenzo Innocente, X. W. Tang, M. White, I. Sheer, P. A. Piroué, M. Gailloud, J. Bao, T. Spickermann, S. Kwan, M. MacDermott, V. P. Andreev, Harvey B Newman, C. Jakobs, F. Wittgenstein, M. Bourquin, K. Strauch, F. Bruyant, K. Hilgers, A. Heavey, G. Landi, J. G. Branson, Bernard Ille, X.R. Shi, L. Ludovici, E. Drago, L. Niessen, Sau Lan Wu, F. Ferroni, R. Magahiz, B. N. Jin, I. Clare, G.J. Bobbink, Steven Goldfarb, Y. Zeng, T. Driever, Z. W. Yin, M. Chemarin, M. Vivargent, M. Sachwitz, An.A. Vorobyov, T. Matsuda, R L. Sumner, S. N. Ganguli, P. Berges, A. Degré, M. Maire, J. D. Swain, Giovanni Paternoster, Ren-Yuan Zhu, Luciano Barone, M. Harris, R.B. Sutton, P. Vikas, P. McBride, D.H. Zhang, O. Adriani, G. Chiefari, U. Herten, L. Zehnder, M. Schneegans, P. Extermann, G. M. Chen, M. G. Alviggi, I. Leedom, B. Z. Yang, H. Hofer, L. Antonov, J. H. Field, S. Shevchenko, K. L. Tung, Yueh-Feng Liu, S. Banerjee, P. Goettlicher, F.C. Erné, Q.Y. Yang, K. Sudhakar, A. Gurtu, Helmut Vogel, B. Spiess, Lamberto Luminari, M. Schoentag, V. Lalieu, P. Lebrun, A. A. Syed, K. Lanius, J. Fehlmann, A. Marchionni, T. Riemann, V. Commichau, H. J. Schreiber, Pierre Lecomte, V. Koutsenko, M. Bocciolini, Charles Timmermans, V.R. Krastev, E. Jagel, P. Le Coultre, E. Gonzalez, F. Crijns, K. Hangarter, S. X. Wu, Y. H. Chang, J.P. Burq, George Alverson, Bernardo Adeva, R. Starosta, D. Luckey, Gy L. Bencze, Vineet Kumar, W.-D. Nowak, L. Li, Ph. Rosselet, D. Boutigny, Kajari Mazumdar, Reinhard W. Schulte, G. Schwering, Alexander Malinin, Marcel Merk, M. Steuer, X. D. Cai, G. Forconi, J.F. Li, L. Montanet, J. Schuette, J. Perrier, R.J. Wu, K N. Qureshi, J. Weber, H. Suter, Y.F. Wang, E. Perrin, B. L. Betev, D. Perret-Gallix, Valentin V. Khoze, G.B. Mills, G. Morand, J.C. Sens, R. Dolin, R. Raghavan, Y.P. Tong, Laurent Vuilleumier, E. Isiksal, M. Fukushima, G. H. Wang, S C C. Ting, J. Wenninger, V. Pojidaev, Nikita Smirnov, J. M. Le Goff, Z.F. Gong, J. A. Rubio, H. Anderhub, T.J. Wenaus, H. Akbari, T. Boehringer, M. J. Glaubman, Y. Karyotakis, C. Zabounidis, D. Goujon, D.W. Schmitz, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, A. Sopczak, X. Leytens, M. Napolitano, H. S. Chen, S. Lanzano, D. Wright, J.P. Martin, Igor Vorobiev, M. Hebert, Panos A Razis, A. Gordeev, M. Micke, Z.Q. Yang, Mingshui Chen, V. Morgunov, D. Ren, A. Contin, Alexander Savin, Luciano Romero, Qian Wang, V. Shevchenko, C. F. He, P.G. Seiler, Giorgio Gratta, A. Pevsner, Peter Denes, Barry Blumenfeld, Paolo Bagnaia, Marco Meschini, E. Thomas, J.H. Wang, D. Kirkby, Zhongyukun Xu, A. Kunin, H. van der Graaf, T. Foreman, Y.J. Pei, Wolfgang Lohmann, H. Vogt, B. Bertucci, D. Zhang, J. Ulbricht, W. J. Metzger, Nicanor Colino, G.G.G. Massaro, F. Carbonara, L. Martinez, F. L. Linde, Valery Schegelsky, Antonino Zichichi, J.M. Lubbers, H. Rykaczewski, D. Linnhoefer, S. Rosier-Lees, S. Loekoes, Jean Fay, M. Dhina, Z. Y. Lin, 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), L3, and IHEF (IoP, FNWI)
- Subjects
Coupling constant ,Physics ,Nuclear and High Energy Physics ,Neutral current ,010308 nuclear & particles physics ,media_common.quotation_subject ,Electron–positron annihilation ,Analytical chemistry ,Elementary particle ,01 natural sciences ,Asymmetry ,Nuclear physics ,Particle scattering ,0103 physical sciences ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,010306 general physics ,Pseudovector ,Particle Physics - Experiment ,media_common ,Lepton - Abstract
We have measured both the rates and the forward-backward asymmetry of l+l− from Z0→l+l− (where l=μ, τ) with the L3 detector. We obtained Γll=88±4±3 MeV and the vector neutral current coupling constant, gv=0.00±0.07 and the axial vector neutral current coupling constant, gA=−0.515±0.015.
- Published
- 1990