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Measurement of the tau branching fractions into leptons
Authors :
Acciarri, M Achard, P Adriani, O Aguilar-Benitez, M Alcaraz, J Alemanni, G Allaby, J Aloisio, A Alviggi, MG Ambrosi, G Anderhub, H Andreev, VP Angelescu, T Anselmo, F Arefiev, A Azemoon, T Aziz, T Bagnaia, P Bajo, A Baksay, L Balandras, A Baldew, SV Banerjee, S Barczyk, A Barillere, R Bartalini, P Basile, M Batalova, N Battiston, R Bay, A Becattini, F Becker, U Behner, F Bellucci, L Berbeco, R Berdugo, J Berges, P Bertucci, B Betev, BL Bhattacharya, S Biasini, M Biland, A Blaising, JJ Blyth, SC Bobbink, GJ Bohm, A Boldizsar, L Borgia, B Bourilkov, D Bourquin, M Braccini, S Branson, JG Brochu, F Buffini, A Buijs, A Burger, JD Burger, WJ Cai, XD Capell, M Romeo, GC Carlino, G Cartacci, AM Casaus, J Castellini, G Cavallari, F Cavallo, N Cecchi, C Cerrada, M Cesaroni, F Chamizo, M Chang, YH Chaturvedi, UK Chemarin, M Chen, A Chen, G Chen, GM Chen, HF Chen, HS Chiefari, G Cifarelli, L Cindolo, F Civinini, C Clare, I Clare, R Coignet, G Colijn, AP Colino, N Costantini, S Cotorobai, F de la Cruz, B Csilling, A Cucciarelli, S Dai, TS van Dalen, JA D'Alessandro, R de Asmundis, R Deglon, P Degre, A Deiters, K della Volpe, D Delmeire, E Denes, P DeNotaristefani, F De Salvo, A Diemoz, M Dierckxsens, M van Dierendonck, D Dionisi, C Dittmar, M Dominguez, A Doria, A Dova, MT Duchesneau, D Dufournaud, D Duinker, P El Moamouni, H Engler, A Eppling, FJ Erne, FC Ewers, A Extermann, P Fabre, M Falagan, MA Falciano, S Favara, A Fay, J Fedin, O Felcini, M Ferguson, T Fesefeldt, H Fiandrini, E Field, JH Filthaut, F Fisher, PH Fisk, I Forconi, G Freudenreich, K Furetta, C Galaktionov, Y Ganguli, SN Garcia-Abia, P Gataullin, M Gau, SS Gentile, S Gheordanescu, N Giagu, S Gong, ZF Grenier, G Grimm, O Gruenewald, MW Guida, M van Gulik, R Gupta, VK Gurtu, A Gutay, LJ Haas, D Hasan, A Hatzifotiadou, D Hebbeker, T Herve, A Hidas, P Hirschfelder, J Hofer, H Holzner, G Hoorani, H Hou, SR Hu, Y Iashvili, I Jin, BN Jones, LW de Jong, P Josa-Mutuberria, I Khan, RA Kafer, D Kaur, M Kienzle-Focacci, MN Kim, D Kim, JK Kirkby, J Kiss, D Kittel, W Klimentov, A Konig, AC Kopal, M Kopp, A Koutsenko, V Kraber, M Kraemer, RW Krenz, W Kruger, A Kunin, A Lacentre, P de Guevara, PL Laktineh, I Landi, G Lebeau, M Lebedev, A Lebrun, P Lecomte, P Lecoq, P Le Coultre, P Lee, HJ Le Goff, JM Leiste, R Levtchenko, P Li, C Likhoded, S Lin, CH Lin, WT Linde, FL Lista, L Liu, ZA Lohmann, W Longo, E Lu, YS Lubelsmeyer, K Luci, C Luckey, D Lugnier, L Luminari, L Lustermann, W Ma, WG Maity, M Malgeri, L Malinin, A Mana, C Mangeol, D Mans, J Marian, G Martin, JP Marzano, F Mazumdar, K McNeil, RR Mele, S Merola, L Meschini, M Metzger, WJ von der Mey, M Mihul, A Milcent, H Mirabelli, G Mnich, J Mohanty, GB Moore, R Moulik, T Muanza, GS Muijs, AJM Musicar, B Musy, M Napolitano, M Nessi-Tedaldi, F Newman, H Niessen, T Nisati, A Nowak, H Ofierzynski, R Organtini, G Oulianov, A Palomares, C Pandoulas, D Paoletti, S Paolucci, P Paramatti, R Park, HK Park, IH Passaleva, G Patricelli, S Paul, T Pauluzzi, M Paus, C Pauss, F Pedace, M Pensotti, S Perret-Gallix, D Petersen, B Piccolo, D Pierella, F Pieri, M Piroue, PA Pistolesi, E Plyaskin, V Pohl, M Pojidaev, V Postema, H Pothier, J Prokofiev, DO Prokofiev, D Quartieri, J Rahal-Callot, G Rahaman, MA Raics, P Raja, N Ramelli, R Rancoita, PG Ranieri, R Raspereza, A Raven, G Razis, P Ren, D Rescigno, M Reucroft, S Riemann, S Riles, K Rodin, J Roe, BP Romero, L Rosca, A Rosier-Lees, S Roth, S Rosenbleck, C Roux, B Rubio, JA Ruggiero, G Rykaczewski, H Saremi, S Sarkar, S Salicio, J Sanchez, E Sanders, MP Schafer, C Schegelsky, V Schmidt-Kaerst, S Schmitz, D Schopper, H Schotanus, DJ Schwering, G Sciacca, C Seganti, A Servoli, L Shevchenko, S Shivarov, N Shoutko, V Shumilov, E Shvorob, A Siedenburg, T Son, D Smith, B Spillantini, P Steuer, M Stickland, DP Stone, A Stoyanov, B Straessner, A Sudhakar, K Sultanov, G Sun, LZ Sushkov, S Suter, H Swain, JD Szillasi, Z Sztaricskai, T Tang, XW Tauscher, L Taylor, L Tellili, B Teyssier, D Timmermans, C Ting, SCC Ting, SM Tonwar, SC Toth, J Tully, C Tung, KL Uchida, Y Ulbricht, J Valente, E Vesztergombi, G Vetlitsky, I Vicinanza, D Viertel, G Villa, S Vivargent, M Vlachos, S Vodopianov, I Vogel, H Vogt, H Vorobiev, I Vorobyov, AA Vorvolakos, A Wadhwa, M Wallraff, W Wang, M Wang, XL Wang, ZM Weber, A Weber, M Wienemann, P Wilkens, H Wu, SX Wynhoff, S Xia, L Xu, ZZ Yamamoto, J Yang, BZ Yang, CG Yang, HJ Yang, M Ye, JB Yeh, SC Zalite, A Zalite, Y ZHang, ZP Zhu, GY Zhu, RY Zichichi, A Ziegler, F Zilizi, G Zimmermann, B Zoller, M Collaboration, L L3 (IHEF, IoP, FNWI) 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 Achard, Pablo Ambrosi, Giovanni Bourquin, Maurice Braccini, Saverio Chamizo Llatas, Maria Deglon, Patrick Delmeire, Evelyne Extermann, Pierre Field, John Kienzle, Maria-Novella Malgeri, Luca Pohl, Martin Acciarri, M. Achard, P. Adriani, O. Aguilar Benitez, M. Alcaraz, J. Alemanni, G. Allaby, J. Aloisio, Alberto Alviggi, Mariagrazia Ambrosi, G. Anderhub, H. Andreev, V. P. Angelescu, T. Anselmo, F. Arefiev, A. Azemoon, T. Aziz, T. Bagnaia, P. Bajo, A. Baksay, L. Balandras, A. Baldew, S. V. Banerjee, S. Barczyk, A. Barillere, R. Bartalini, P. Basile, M. Batalova, N. Battiston, R. Bay, A. Becattini, F. Becker, U. Behner, F. Bellucci, L. Berbeco, R. Berdugo, J. Berges, P. Bertucci, B. Betev, B. L. Bhattacharya, S. Biasini, M. Biland, A. Blaising, J. J. Blyth, S. C. Bobbink, G. J. Bohm, A. Boldizsar, L. Borgia, B. Bourilkov, D. Bourquin, M. Braccini, S. Branson, J. G. Brochu, F. Buffini, A. Buijs, A. Burger, J. D. Burger, W. J. Cai, X. D. Capell, M. Romeo, G. C. Carlino, G. Cartacci, A. M. Casaus, J. Castellini, G. Cavallari, F. Cavallo, N. Cecchi, C. Cerrada, M. Cesaroni, F. Chamizo, M. Chang, Y. H. Chaturvedi, U. K. Chemarin, M. Chen, A. Chen, G. Chen, G. M. Chen, H. F. Chen, H. S. Chiefari, Giovanni Cifarelli, L. Cindolo, F. Civinini, C. I, C. Clare, R. Coignet, G. Colijn, A. P. Colino, N. Costantini, S. Cotorobai, F. B. d., La Csilling, A. Cucciarelli, S. Dai, T. S. Van, J. A. D'Alessandro, R. Asmundis, R. d. Deglon, P. Degre, A. Deiters, K. DELLA VOLPE, Domenico Delmeire, E. Denes, P. Denotaristefani, F. Salvo, A. D. Diemoz, M. Dierckxsens, M. Dierendonck, D. v. Dionisi, C. Dittmar, M. Dominguez, A. Doria, A. Dova, M. T. Duchesneau, D. Dufournaud, D. Duinker, P. Moamouni, H. E. Engler, A. Eppling, F. J. Erne, F. C. Ewers, A. Extermann, P. Fabre, M. Falagan, M. A. Falciano, S. Favara, A. Fay, J. Fedin, O. Felcini, M. Ferguson, T. Fesefeldt, H. Fiandrini, E. Field, J. H. Filthaut, F. Fisher, P. H. I, F. Forconi, G. Freudenreich, K. Furetta, C. Galaktionov, Y. Ganguli, S. N. Garcia Abia, P. Gataullin, M. Gau, S. S. Gentile, S. Gheordanescu, N. Giagu, S. Gong, Z. F. Grenier, G. Grimm, O. Gruenewald, M. W. Guida, M. Gulik, R. v. Gupta, V. K. Gurtu, A. Gutay, L. J. Haas, D. Hasan, A. Hatzifotiadou, D. Hebbeker, T. Herve, A. Hidas, P. Hirschfelder, J. Hofer, H. Holzner, G. Hoorani, H. Sr, H. Hu, Y. I, I. Jin, B. N. Jones, L. W. Jong, P. d. I, J. Khan, R. A. Kafer, D. Kaur, M. Kienzle Focacci, M. N. Kim, D. Kim, J. K. Kirkby, J. Kiss, D. Kittel, W. Klimentov, A. Konig, A. C. Kopal, M. Kopp, A. V, K. Kraber, M. Kraemer, R. W. Krenz, W. Kruger, A. Kunin, A. Lacentre, P. P. L., De I, L. Landi, G. Lebeau, M. Lebedev, A. Lebrun, P. Lecomte, P. Lecoq, P. Coultre, P. L. Lee, H. J. J. M., Le Leiste, R. Levtchenko, P. Li, C. Likhoded, S. Lin, C. H. Lin, W. T. Linde, F. L. Lista, L. Liu, Z. A. Lohmann, W. Longo, E. Y. S., Lu Lubelsmeyer, K. Luci, C. Luckey, D. Lugnier, L. Luminari, L. Lustermann, W. W. G., Ma Maity, M. Malgeri, L. Malinin, A. Mana, C. Mangeol, D. Mans, J. Marian, G. Martin, J. P. Marzano, F. Mazumdar, K. Mcneil, R. R. Mele, S. Merola, Leonardo Meschini, M. Metzger, W. J. Der, M. v. Mihul, A. Milcent, H. Mirabelli, G. Mnich, J. Mohanty, G. B. Moore, R. Moulik, T. Muanza, G. S. A. J. M. Musicar, B. Musy, M. Napolitano, Marco Nessi Tedaldi, F. Newman, H. Niessen, T. Nisati, A. Nowak, H. Ofierzynski, R. Organtini, G. Oulianov, A. Palomares, C. Pandoulas, D. Paoletti, S. Paolucci, P. Paramatti, R. Park, H. K. Park, I. H. Passaleva, G. Patricelli, Sergio Paul, T. Pauluzzi, M. Paus, C. Pauss, F. Pedace, M. Pensotti, S. Perret Gallix, D. Petersen, B. Piccolo, D. Pierella, F. Pieri, M. Piroue, P. A. Pistolesi, E. V, P. Pohl, M. Postema, H. Pothier, J. Prokofiev, D. O. Prokofiev, D. Quartieri, J. Rahal Callot, G. Rahaman, M. A. Raics, P. Raja, N. Ramelli, R. Rancoita, P. G. Ranieri, R. Raspereza, A. Raven, G. Razis, P. Ren, D. Rescigno, M. Reucroft, S. Riemann, S. Riles, K. Rodin, J. Roe, B. P. Romero, L. Rosca, A. Rosier Lees, S. Roth, S. Rosenbleck, C. Roux, B. Rubio, J. A. Ruggiero, G. Rykaczewski, H. Saremi, S. Sarkar, S. Salicio, J. Sanchez, E. Sanders, M. P. Schafer, C. V, S. Schmidt Kaerst, S. Schmitz, D. Schopper, H. Schotanus, D. J. Schwering, G. Sciacca, Crisostomo Seganti, A. Servoli, L. Shevchenko, S. Shivarov, N. Shumilov, E. Shvorob, A. Siedenburg, T. Son, D. Smith, B. Spillantini, P. Steuer, M. Stickland, D. P. Stone, A. Stoyanov, B. Straessner, A. Sudhakar, K. Sultanov, G. Sun, L. Z. Sushkov, S. Suter, H. Swain, J. D. Szillasi, Z. Sztaricskai, T. Tang, X. W. Tauscher, L. Taylor, L. Tellili, B. Teyssier, D. Timmermans, C. S. C. C. Ting, S. M. Tonwar, S. C. Toth, J. Tully, C. Tung, K. L. Uchida, Y. Ulbricht, J. Valente, E. Vesztergombi, G. I, V. Vicinanza, D. Viertel, G. Villa, S. Vivargent, M. Vlachos, S. Vogel, H. Vogt, H. Vorobyov, A. A. Vorvolakos, A. Wadhwa, M. Wallraff, W. Wang, M. Wang, X. L. Wang, Z. M. Weber, A. Weber, M. Wienemann, P. Wilkens, H. S. X., Wu Wynhoff, S. Xia, L. Z. Z., Xu Yamamoto, J. Yang, B. Z. Yang, C. G. Yang, H. J. Yang, M. J. B., Ye Yeh, S. C. Zalite, A. Zalite, Y. Zhang, Z. P. Zhu, G. Y. Zhu, R. Y. Zichichi, A. Ziegler, F. Zilizi, G. Zimmermann, B. Zoller, M.
Source :
SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP, Physics Letters B, 507, 47-60. Elsevier, Physics Letters B, Physics Letters B, Elsevier, 2001, 507, pp.47-60, Physics Letters. B, Vol. 507, No 1-4 (2001) pp. 47-60
Publication Year :
2001
Abstract
Using data collected with the L3 detector near the Z resonance, corresponding to an integrated luminosity of 150 pb−1, the branching fractions of the tau lepton into electron and muon are measured to be B(τ → eν ̄eντ ) = (17.806 ± 0.104 (stat.) ± 0.076 (syst.))%, B(τ → μν ̄μντ ) = (17.342±0.110 (stat.)±0.067 (syst.))%. From these results the ratio of the charged current coupling constants of the muon and the electron is determined to be gμ/ge = 1.0007 ± 0.0051. Assuming electron-muon universality, the Fermi constant is measured in tau lepton decays as GF = (1.1616± 0.0058) × 10−5 GeV−2. Furthermore, the coupling constant of the strong interaction at the tau mass scale is obtained as αs(m2 τ ) = 0.322 ± 0.009 (exp.) ± 0.015 (theory).<br />Facultad de Ciencias Exactas
Details
Language :
English
ISSN :
03702693
Database :
OpenAIRE
Journal :
SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP, Physics Letters B, 507, 47-60. Elsevier, Physics Letters B, Physics Letters B, Elsevier, 2001, 507, pp.47-60, Physics Letters. B, Vol. 507, No 1-4 (2001) pp. 47-60
Accession number :
edsair.doi.dedup.....da931a6b79d97b250d5598d97a3ba706