The strong coupling constant is determined from the leptonic branching ratios, the lifetime, and the invariant mass distribution of the hadronic final state of the τ lepton, using data accumulated at LEP with the ALEPH detector. The strong coupling constant measurement, αs(mτ 2) = 0.330±0.046, evolved to the Z mass yields αs(MZ 2) = 0.188±0.005. The error includes experimental and theoretical uncertainties, the latter evaluated in the framework of the Shifman, Vainshtein and Zakharov (SVZ) approach. The method allows the non-perturbative contribution to the hadronic decay rate to be determined to be 0.3±0.5%.

Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1993). Measurement of the strong coupling constant using τ decays. PHYSICS LETTERS. SECTION B, 307(1-2), 209-220 [10.1016/0370-2693(93)90212-Z].

Measurement of the strong coupling constant using τ decays

CARPINELLI, Massimo;
1993

Abstract

The strong coupling constant is determined from the leptonic branching ratios, the lifetime, and the invariant mass distribution of the hadronic final state of the τ lepton, using data accumulated at LEP with the ALEPH detector. The strong coupling constant measurement, αs(mτ 2) = 0.330±0.046, evolved to the Z mass yields αs(MZ 2) = 0.188±0.005. The error includes experimental and theoretical uncertainties, the latter evaluated in the framework of the Shifman, Vainshtein and Zakharov (SVZ) approach. The method allows the non-perturbative contribution to the hadronic decay rate to be determined to be 0.3±0.5%.
Articolo in rivista - Articolo scientifico
Physics
English
209
220
12
Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1993). Measurement of the strong coupling constant using τ decays. PHYSICS LETTERS. SECTION B, 307(1-2), 209-220 [10.1016/0370-2693(93)90212-Z].
Buskulic, D; Decamp, D; Goy, C; Lees, J; Minard, M; Mours, B; Pietrzyk, B; Alemany, R; Ariztizabal, F; Comas, P; Crespo, J; Delfino, M; Fernandez, E; Fernandezbosman, M; Gaitan, V; Garrido, L; Mattison, T; Pacheco, A; Padilla, C; Pascual, A; Creanza, D; Depalma, M; Farilla, A; Iaselli, G; Maggi, G; Maggi, M; Natali, S; Nuzzo, S; Quattromini, M; Ranieri, A; Raso, G; Romano, F; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Zito, G; Chai, Y; Hu, H; Huang, D; Huang, X; Lin, J; Wang, T; Xie, Y; Xu, D; Xu, R; Zhang, J; Zhang, L; Zhao, W; Bauerdick, L; Blucher, E; Bonvicini, G; Boudreau, J; Casper, D; Drevermann, H; Forty, R; Ganis, G; Gay, C; Hagelberg, R; Harvey, J; Haywood, S; Hilgart, J; Jacobsen, R; Jost, B; Knobloch, J; Lehraus, I; Lohse, T; Lusiani, A; Martinez, M; Mato, P; Meinhard, H; Minten, A; Miotto, A; Miquel, R; Moser, H; Palazzi, P; Perlas, J; Pusztaszeri, J; Ranjard, F; Redlinger, G; Rolandi, L; Rothberg, J; Ruan, T; Saich, M; Schlatter, D; Schmelling, M; Sefkow, F; Tejessy, W; Wachsmuth, H; Wiedenmann, W; Wildish, T; Witzeling, W; Wotschack, J; Ajaltouni, Z; Badaud, F; Bardadinotwinowska, M; Elfellous, R; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Montret, J; Pallin, D; Perret, P; Podlyski, F; Proriol, J; Prulhiere, F; Saadi, F; Fearnley, T; Hansen, J; Hansen, J; Hansen, P; Mollerud, R; Nilsson, B; Efthymiopoulos, I; Kyriakis, A; Simopoulou, E; Vayaki, A; Zachariadou, K; Badier, J; Blondel, A; Bonneaud, G; Brient, J; Fouque, G; Orteu, S; Rouge, A; Rumpf, M; Tanaka, R; Verderi, M; Videau, H; Candlin, D; Parsons, M; Veitch, E; Moneta, L; Parrini, G; Corden, M; Georgiopoulos, C; Ikeda, M; Lannutti, J; Levinthal, D; Mermikides, M; Sawyer, L; Wasserbaech, S; Antonelli, A; Baldini, R; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Cerutti, F; Chiarella, V; Dettorrepiazzoli, B; Felici, G; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, G; Passalacqua, L; Pepealtarelli, M; Picchi, P; Colrain, P; Tenhave, I; Lynch, J; Maitland, W; Morton, W; Raine, C; Reeves, P; Scarr, J; Smith, K; Smith, M; Thompson, A; Turnbull, R; Brandl, B; Braun, O; Geweniger, C; Hanke, P; Hepp, V; Kluge, E; Maumary, Y; Putzer, A; Rensch, B; Stahl, A; Tittel, K; Wunsch, M; Belk, A; Beuselinck, R; Binnie, D; Cameron, W; Cattaneo, M; Colling, D; Dornan, P; Dugeay, S; Greene, A; Hassard, J; Lieske, N; Nash, J; Payne, D; Phillips, M; Sedgbeer, J; Tomalin, I; Wright, A; Girtler, P; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, C; Brodbeck, T; Finch, A; Foster, F; Hughes, G; Jackson, D; Keemer, N; Nuttall, M; Patel, A; Sloan, T; Snow, S; Whelan, E; Kleinknecht, K; Raab, J; Renk, B; Sander, H; Schmidt, H; Steeg, F; Walther, S; Wanke, R; Wolf, B; Aubert, J; Bencheikh, A; Benchouk, C; Bonissent, A; Carr, J; Coyle, P; Drinkard, J; Etienne, F; Nicod, D; Papalexiou, S; Payre, P; Roos, L; Rousseau, D; Schwemling, P; Talby, M; Adlung, S; Assmann, R; Bauer, C; Blum, W; Brown, D; Cattaneo, P; Dehning, B; Dietl, H; Dydak, F; Frank, M; Halley, A; Lauber, J; Lutjens, G; Lutz, G; Manner, W; Richter, R; Rotscheidt, H; Schroder, J; Schwarz, A; Settles, R; Seywerd, H; Stierlin, U; Stiegler, U; Stdenis, R; Wolf, G; Boucrot, J; Callot, O; Cordier, A; Davier, M; Duflot, L; Grivaz, J; Heusse, P; Jaffe, D; Janot, P; Kim, D; Lediberder, F; Lefrancois, J; Lutz, A; Schune, M; Veillet, J; Videau, I; Zhang, Z; Abbaneo, D; Bagliesi, G; Batignani, G; Bosisio, L; Bottigli, U; Bozzi, C; Calderini, G; Carpinelli, M; Ciocci, M; Dellorso, R; Ferrante, I; Fidecaro, F; Foa, L; Focardi, E; Forti, F; Giassi, A; Giorgi, M; Gregorio, A; Ligabue, F; Mannelli, E; Marrocchesi, P; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Spagnolo, P; Steinberger, J; Tenchini, R; Tonelli, G; Triggiani, G; Vannini, C; Venturi, A; Verdini, P; Walsh, J; Betteridge, A; Carter, J; Green, M; March, P; Mir, L; Medcalf, T; Quazi, I; Strong, J; West, L; Botterill, D; Clifft, R; Edgecock, T; Edwards, M; Fisher, S; Jones, T; Norton, P; Salmon, D; Thompson, J; Blochdevaux, B; Colas, P; Duarte, H; Kozanecki, W; Lancon, E; Lemaire, M; Locci, E; Perez, P; Perrier, F; Rander, J; Renardy, J; Rosowsky, A; Roussarie, A; Schuller, J; Schwindling, J; Mohand, D; Vallage, B; Johnson, R; Litke, A; Taylor, G; Wear, J; Ashman, J; Babbage, W; Booth, C; Buttar, C; Carney, R; Cartwright, S; Combley, F; Hatfield, F; Thompson, L; Barberio, E; Bohrer, A; Brandt, S; Cowan, G; Grupen, C; Lutters, G; Rivera, F; Schafer, U; Smolik, L; Dellamarina, R; Giannini, G; Gobbo, B; Ragusa, F; Bellantoni, L; Chen, W; Cinabro, D; Conway, J; Cowen, D; Feng, Z; Ferguson, D; Gao, Y; Grahl, J; Harton, J; Jared, R; Leclaire, B; Lishka, C; Pan, Y; Pater, J; Saadi, Y; Sharma, V; Schmitt, M; Shi, Z; Walsh, A; Weber, F; Wu, S; Wu, X; Zheng, M; Zobernig, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390425
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