The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at center-of-mass energies around the Z pole resulting in tau(tau) = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of Mix per mille. Assuming lepton universality, the value of the strong coupling constant, alpha(s), is found to be alpha(s)(m(r)(2)) = 0.319 +/- 0.015 (exp) +/- 0.014 (theory). (C) 2000 Elsevier Science B.V. All rights reserved.

Measurement of the lifetime of the tau lepton / 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, Paolo; Bajo, A; Baksay, L; Balandras, A; Banerjee, S; Banerjee, S; Barczyk, A; Barillere, R; Barone, Luciano Maria; Bartalini, P; Basile, M; 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; Brigljevic, V; Brochu, F; Buffini, A; Buijs, A; Burger, Jd; Burger, Wj; Cai, Xd; Campanelli, M; 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; Cozzoni, B; 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; Denes, P; Denotaristefani, F; DE SALVO, A; Diemoz, M; VAN DIERENDONCK, D; DI LODOVICO, F; Dionisi, C; Dittmar, M; Dominguez, A; Doria, A; Dova, Mt; Duchesneau, D; Dufournaud, D; Duinker, P; Duran, I; EL MAMOUNI, H; Engler, A; Eppling, Fj; Erne, Fc; Extermann, P; Fabre, M; Faccini, R; Falagan, Ma; Falciano, S; Favara, A; Fay, J; Fedin, O; Felcini, M; Ferguson, T; Ferroni, Fernando; Fesefeldt, H; Fiandrini, E; Field, Jh; Filthaut, F; Fisher, Ph; Fisk, I; Forconi, G; Fredj, L; Freudenreich, K; Furetta, C; Galaktionov, Y; Ganguli, Sn; GARCIA ABIA, P; Gataullin, M; Gau, Ss; Gentile, Simonetta; Gheordanescu, N; Giagu, Stefano; 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; Kaur, M; KIENZLE FOCACCI, Mn; Kim, D; Kim, Jk; Kirkby, J; Kiss, D; Kittel, W; Klimentov, A; Konig, Ac; Kopp, A; Koutsenko, V; Kraber, M; Kraemer, Rw; Krenz, W; Kruger, A; Kunin, A; DE GUEVARA, Pl; Laktineh, I; Landi, G; LASSILA PERINI, K; Lebeau, M; Lebedev, A; Lebrun, P; Lecomte, P; Lecoq, P; LE COULTRE, P; Lee, Hj; LE GOFF, Jm; Leiste, R; Leonardi, E; Levtchenko, P; Li, C; Lokhoded, S; Lin, Ch; Lin, Wt; Linde, Fl; Lista, L; Liu, Za; Lohmann, W; Longo, E; Lu, Ys; Lubelsmeyer, K; Luci, Claudio; Luckey, D; Lugnier, L; Luminari, L; Lustermann, W; Ma, Wg; Maity, M; Malgeri, L; Malinin, A; Mana, C; Mangeol, D; Mans, J; Marchesini, P; Marian, G; Martin, Jp; Marzano, F; Massaro, Ggg; 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; Molnar, P; Monteleoni, B; Moore, R; Moulik, T; Muanza, Gs; Muheim, F; Muijs, Ajm; Musy, M; Napolitano, M; NESSI TEDALDI, F; Newman, H; Niessen, T; Nisati, A; Nowak, H; Organtini, Giovanni; Oulianov, A; Palomares, C; Pandoulas, D; Paoletti, S; Paolucci, P; Paramatti, Riccardo; Park, Hk; Park, Ih; Pascale, G; 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; Produit, N; Prokofiev, Do; Prokofiev, D; Quartieri, J; RAHAL CALLOT, G; Rahaman, Ma; Raics, P; Raja, N; Ramelli, R; Rancoita, Pg; Raspereza, A; Raven, G; Razis, P; Ren, D; Rescigno, M; Reucroft, S; VAN RHEE, T; Riemann, S; Riles, K; Robohm, A; Rodin, J; Roe, Bp; Romero, L; Rosca, A; ROSIER LEES, S; Rubio, Ja; Ruschmeier, D; Rykaczewski, H; Saremi, S; Sarkar, S; Salicio, J; Sanchez, E; Sanders, Mp; Sarakinos, Me; Schafer, C; Schegelsky, V; SCHMIDT KAERST, S; Schmitz, D; Schopper, H; Schotanus, Dj; Schwering, G; Sciacca, C; Sciarrino, D; 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; Suter, H; Swain, Jd; Szillasi, Z; Sztaricskai, T; Tang, Xw; Tauscher, L; Taylor, L; Tellili, B; 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; Zoller, M.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 479:(2000), pp. 67-78. [10.1016/S0370-2693(00)00347-6]

Measurement of the lifetime of the tau lepton

BAGNAIA, Paolo;BARONE, Luciano Maria;FACCINI R;FERRONI, Fernando;GENTILE, Simonetta;GIAGU, Stefano;LUCI, Claudio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;
2000

Abstract

The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at center-of-mass energies around the Z pole resulting in tau(tau) = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of Mix per mille. Assuming lepton universality, the value of the strong coupling constant, alpha(s), is found to be alpha(s)(m(r)(2)) = 0.319 +/- 0.015 (exp) +/- 0.014 (theory). (C) 2000 Elsevier Science B.V. All rights reserved.
2000
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the lifetime of the tau lepton / 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, Paolo; Bajo, A; Baksay, L; Balandras, A; Banerjee, S; Banerjee, S; Barczyk, A; Barillere, R; Barone, Luciano Maria; Bartalini, P; Basile, M; 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; Brigljevic, V; Brochu, F; Buffini, A; Buijs, A; Burger, Jd; Burger, Wj; Cai, Xd; Campanelli, M; 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; Cozzoni, B; 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; Denes, P; Denotaristefani, F; DE SALVO, A; Diemoz, M; VAN DIERENDONCK, D; DI LODOVICO, F; Dionisi, C; Dittmar, M; Dominguez, A; Doria, A; Dova, Mt; Duchesneau, D; Dufournaud, D; Duinker, P; Duran, I; EL MAMOUNI, H; Engler, A; Eppling, Fj; Erne, Fc; Extermann, P; Fabre, M; Faccini, R; Falagan, Ma; Falciano, S; Favara, A; Fay, J; Fedin, O; Felcini, M; Ferguson, T; Ferroni, Fernando; Fesefeldt, H; Fiandrini, E; Field, Jh; Filthaut, F; Fisher, Ph; Fisk, I; Forconi, G; Fredj, L; Freudenreich, K; Furetta, C; Galaktionov, Y; Ganguli, Sn; GARCIA ABIA, P; Gataullin, M; Gau, Ss; Gentile, Simonetta; Gheordanescu, N; Giagu, Stefano; 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; Kaur, M; KIENZLE FOCACCI, Mn; Kim, D; Kim, Jk; Kirkby, J; Kiss, D; Kittel, W; Klimentov, A; Konig, Ac; Kopp, A; Koutsenko, V; Kraber, M; Kraemer, Rw; Krenz, W; Kruger, A; Kunin, A; DE GUEVARA, Pl; Laktineh, I; Landi, G; LASSILA PERINI, K; Lebeau, M; Lebedev, A; Lebrun, P; Lecomte, P; Lecoq, P; LE COULTRE, P; Lee, Hj; LE GOFF, Jm; Leiste, R; Leonardi, E; Levtchenko, P; Li, C; Lokhoded, S; Lin, Ch; Lin, Wt; Linde, Fl; Lista, L; Liu, Za; Lohmann, W; Longo, E; Lu, Ys; Lubelsmeyer, K; Luci, Claudio; Luckey, D; Lugnier, L; Luminari, L; Lustermann, W; Ma, Wg; Maity, M; Malgeri, L; Malinin, A; Mana, C; Mangeol, D; Mans, J; Marchesini, P; Marian, G; Martin, Jp; Marzano, F; Massaro, Ggg; 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; Molnar, P; Monteleoni, B; Moore, R; Moulik, T; Muanza, Gs; Muheim, F; Muijs, Ajm; Musy, M; Napolitano, M; NESSI TEDALDI, F; Newman, H; Niessen, T; Nisati, A; Nowak, H; Organtini, Giovanni; Oulianov, A; Palomares, C; Pandoulas, D; Paoletti, S; Paolucci, P; Paramatti, Riccardo; Park, Hk; Park, Ih; Pascale, G; 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; Produit, N; Prokofiev, Do; Prokofiev, D; Quartieri, J; RAHAL CALLOT, G; Rahaman, Ma; Raics, P; Raja, N; Ramelli, R; Rancoita, Pg; Raspereza, A; Raven, G; Razis, P; Ren, D; Rescigno, M; Reucroft, S; VAN RHEE, T; Riemann, S; Riles, K; Robohm, A; Rodin, J; Roe, Bp; Romero, L; Rosca, A; ROSIER LEES, S; Rubio, Ja; Ruschmeier, D; Rykaczewski, H; Saremi, S; Sarkar, S; Salicio, J; Sanchez, E; Sanders, Mp; Sarakinos, Me; Schafer, C; Schegelsky, V; SCHMIDT KAERST, S; Schmitz, D; Schopper, H; Schotanus, Dj; Schwering, G; Sciacca, C; Sciarrino, D; 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; Suter, H; Swain, Jd; Szillasi, Z; Sztaricskai, T; Tang, Xw; Tauscher, L; Taylor, L; Tellili, B; 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; Zoller, M.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 479:(2000), pp. 67-78. [10.1016/S0370-2693(00)00347-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/248077
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