Measurement of the strong coupling constant using τ decays

D. Buskulic; D. Decamp; C. Goy; J. P. Lees; M. N. Minard; B. Mours; B. Pietrzyk; R. Alemany; F. Ariztizabal; P. Comas; J. M. Crespo; M. Delfino; E. Fernandez; M. Fernandez-Bosman; V. Gaitan; Ll Garrido; T. Mattison; A. Pacheco; C. Padilla; A. Pascual; D. Creanza; M. de Palma; A. Farilla; G. Iaselli; G. Maggi; M. Maggi; S. Natali; S. Nuzzo; M. Quattromini; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; Y. Chai; H. Hu; D. Huang; X. Huang; J. Lin; T. Wang; Y. Xie; D. Xu; R. Xu; J. Zhang; L. Zhang; W. Zhao; L. A.T. Bauerdick; E. Blucher; G. Bonvicini; J. Boudreau; D. Casper; H. Drevermann; R. W. Forty; G. Ganis; C. Gay; R. Hagelberg; J. Harvey; S. Haywood; J. Hilgart; R. Jacobsen; B. Jost; J. Knobloch; I. Lehraus; T. Lohse; A. Lusiani; M. Martinez; P. Mato; H. Meinhard; A. Minten; A. Miotto; R. Miquel; H. G. Moser; P. Palazzi; J. A. Perlas; J. F. Pusztaszeri; F. Ranjard; G. Redlinger; L. Rolandi; J. Rothberg; T. Ruan; M. Saich; D. Schlatter; M. Schmelling; F. Sefkow; W. Tejessy; H. Wachsmuth; W. Wiedenmann; T. Wildish; W. Witzeling; J. Wotschack; Z. Ajaltouni; F. Badaud; M. Bardadin-Otwinowska; R. El Fellous; A. Falvard; P. Gay; C. Guicheney; P. Henrard; J. Jousset; B. Michel; J. C. Montret; D. Pallin; P. Perret; F. Podlyski; J. Proriol; F. Prulhière; F. Saadi; T. Fearnley; J. D. Hansen; J. R. Hansen; P. H. Hansen; R. Møllerud; B. S. Nilsson; I. Efthymiopoulos; A. Kyriakis; E. Simopoulou; A. Vayaki; K. Zachariadou; J. Badier; A. Blondel; G. Bonneaud; J. C. Brient; G. Fouque; S. Orteu; A. Rougé; M. Rumpf; R. Tanaka; M. Verderi; H. Videau; D. J. Candlin; M. I. Parsons; E. Veitch; L. Moneta; G. Parrini; M. Corden; C. Georgiopoulos; M. Ikeda; J. Lannutti; D. Levinthal; M. Mermikides; L. Sawyer; S. Wasserbaech; A. Antonelli; R. Baldini; G. Bencivenni; G. Bologna; F. Bossi; P. Campana; G. Capon; F. Cerutti; V. Chiarella; B. D'Ettorre-Piazzoli; G. Felici; P. Laurelli; G. Mannocchi; F. Murtas; G. P. Murtas; L. Passalacqua; M. Pepe-Altarelli; P. Picchi; P. Colrain; I. ten Have; J. G. Lynch; W. Maitland; W. T. Morton; C. Raine; P. Reeves; J. M. Scarr; K. Smith; M. G. Smith; A. S. Thompson; R. M. Turnbull; B. Brandl; O. Braun; C. Geweniger; P. Hanke; V. Hepp; E. E. Kluge; Y. Maumary; A. Putzer; B. Rensch; A. Stahl; K. Tittel; M. Wunsch; A. T. Belk; R. Beuselinck; D. M. Binnie; W. Cameron; M. Cattaneo; D. J. Colling; P. J. Dornan; S. Dugeay; A. M. Greene; J. F. Hassard; N. M. Lieske; J. Nash; D. G. Payne; M. J. Phillips; J. K. Sedgbeer; I. R. Tomalin; A. G. Wright; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; C. K. Bowdery; T. J. Brodbeck; A. J. Finch; F. Foster; G. Hughes; D. Jackson; N. R. Keemer; M. Nuttall; A. Patel; T. Sloan; S. W. Snow; E. P. Whelan; K. Kleinknecht; J. Raab; B. Renk; H. G. Sander; H. Schmidt; F. Steeg; S. M. Walther; R. Wanke; B. Wolf; J. J. Aubert; A. M. Bencheikh; C. Benchouk; A. Bonissent; J. Carr; P. Coyle; J. Drinkard; F. Etienne; D. Nicod; S. Papalexiou; P. Payre; L. Roos; D. Rousseau; P. Schwemling; M. Talby; S. Adlung; R. Assmann; C. Bauer; W. Blum; D. Brown; P. Cattaneo; B. Dehning; H. Dietl; F. Dydak; M. Frank; A. W. Halley; J. Lauber; G. Lütjens; G. Lutz; W. Männer; R. Richter; H. Rotscheidt; J. Schröder; A. S. Schwarz; R. Settles; H. Seywerd; U. Stierlin; U. Stiegler; R. St Denis; G. Wolf; J. Boucrot; O. Callot; A. Cordier; M. Davier; L. Duflot; J. F. Grivaz; Ph Heusse; D. E. Jaffe; P. Janot; D. W. Kim; F. Le Diberder; J. Lefrançois; A. M. Lutz; M. H. Schune; J. J. Veillet; I. Videau; Z. Zhang; D. Abbaneo; G. Bagliesi; G. Batignani; L. Bosisio; U. Bottigli; C. Bozzi; G. Calderini; M. Carpinelli; M. A. Ciocci; R. Dell'Orso; I. Ferrante; F. Fidecaro; L. Foà; E. Focardi; F. Forti; A. Giassi; M. A. Giorgi; A. Gregorio; F. Ligabue; E. B. Mannelli; P. S. Marrocchesi; A. Messineo; F. Palla; G. Rizzo; G. Sanguinetti; P. Spagnolo; J. Steinberger; R. Tenchini; G. Tonelli; G. Triggiani; C. Vannini; A. Venturi; P. G. Verdini; J. Walsh; A. P. Betteridge; J. M. Carter; M. G. Green; P. V. March; Ll M. Mir; T. Medcalf; I. S. Quazi; J. A. Strong; L. R. West; D. R. Botterill; R. W. Clifft; T. R. Edgecock; M. Edwards; S. M. Fisher; T. J. Jones; P. R. Norton; D. P. Salmon; J. C. Thompson; B. Bloch-Devaux; P. Colas; H. Duarte; W. Kozanecki; E. Lançon; M. C. Lemaire; E. Locci; P. Perez; F. Perrier; J. Rander; J. F. Renardy; A. Rosowsky; A. Roussarie; J. P. Schuller; J. Schwindling; D. Si Mohand; B. Vallage; R. P. Johnson; A. M. Litke; G. Taylor; J. Wear; J. G. Ashman; W. Babbage; C. N. Booth; C. Buttar; R. E. Carney; S. Cartwright; F. Combley; F. Hatfield; L. F. Thompson; E. Barberio; A. Böhrer; S. Brandt; G. Cowan; C. Grupen; G. Lutters; F. Rivera; U. Schäfer; L. Smolik; R. Della Marina; G. Giannini; B. Gobbo; F. Ragusa; L. Bellantoni; W. Chen; D. Cinabro; J. S. Conway; D. F. Cowen; Z. Feng; D. P.S. Ferguson; Y. S. Gao; J. Grahl; J. L. Harton; R. C. Jared; B. W. LeClaire; C. Lishka; Y. B. Pan; J. R. Pater; Y. Saadi; V. Sharma; M. Schmitt; Z. H. Shi; A. M. Walsh; F. V. Weber; Sau Lan Wu; X. Wu; M. Zheng; G. Zobernig

doi:10.1016/0370-2693(93)90212-Z

Measurement of the strong coupling constant using τ decays

D. Buskulic, D. Decamp, C. Goy, J. P. Lees, M. N. Minard, B. Mours, B. Pietrzyk, R. Alemany, F. Ariztizabal, P. Comas, J. M. Crespo, M. Delfino, E. Fernandez, M. Fernandez-Bosman, V. Gaitan, Ll Garrido, T. Mattison, A. Pacheco, C. Padilla, A. PascualD. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chai, H. Hu, D. Huang, X. Huang, J. Lin, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, L. Zhang, W. Zhao, L. A.T. Bauerdick, E. Blucher, G. Bonvicini, J. Boudreau, D. Casper, H. Drevermann, R. W. Forty, G. Ganis, C. Gay, R. Hagelberg, J. Harvey, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, J. Knobloch, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, H. Meinhard, A. Minten, A. Miotto, R. Miquel, H. G. Moser, P. Palazzi, J. A. Perlas, J. F. Pusztaszeri, F. Ranjard, G. Redlinger, L. Rolandi, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, F. Sefkow, W. Tejessy, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, R. El Fellous, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, J. C. Montret, D. Pallin, P. Perret, F. Podlyski, J. Proriol, F. Prulhière, F. Saadi, T. Fearnley, J. D. Hansen, J. R. Hansen, P. H. Hansen, R. Møllerud, B. S. Nilsson, I. Efthymiopoulos, A. Kyriakis, E. Simopoulou, A. Vayaki, K. Zachariadou, J. Badier, A. Blondel, G. Bonneaud, J. C. Brient, G. Fouque, S. Orteu, A. Rougé, M. Rumpf, R. Tanaka, M. Verderi, H. Videau, D. J. Candlin, M. I. Parsons, E. Veitch, L. Moneta, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, S. Wasserbaech, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Colrain, I. ten Have, J. G. Lynch, W. Maitland, W. T. Morton, C. Raine, P. Reeves, J. M. Scarr, K. Smith, M. G. Smith, A. S. Thompson, R. M. Turnbull, B. Brandl, O. Braun, C. Geweniger, P. Hanke, V. Hepp, E. E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A. T. Belk, R. Beuselinck, D. M. Binnie, W. Cameron, M. Cattaneo, D. J. Colling, P. J. Dornan, S. Dugeay, A. M. Greene, J. F. Hassard, N. M. Lieske, J. Nash, D. G. Payne, M. J. Phillips, J. K. Sedgbeer, I. R. Tomalin, A. G. Wright, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C. K. Bowdery, T. J. Brodbeck, A. J. Finch, F. Foster, G. Hughes, D. Jackson, N. R. Keemer, M. Nuttall, A. Patel, T. Sloan, S. W. Snow, E. P. Whelan, K. Kleinknecht, J. Raab, B. Renk, H. G. Sander, H. Schmidt, F. Steeg, S. M. Walther, R. Wanke, B. Wolf, J. J. Aubert, A. M. Bencheikh, C. Benchouk, A. Bonissent, J. Carr, P. Coyle, J. Drinkard, F. Etienne, D. Nicod, S. Papalexiou, P. Payre, L. Roos, D. Rousseau, P. Schwemling, M. Talby, S. Adlung, R. Assmann, C. Bauer, W. Blum, D. Brown, P. Cattaneo, B. Dehning, H. Dietl, F. Dydak, M. Frank, A. W. Halley, J. Lauber, G. Lütjens, G. Lutz, W. Männer, R. Richter, H. Rotscheidt, J. Schröder, A. S. Schwarz, R. Settles, H. Seywerd, U. Stierlin, U. Stiegler, R. St Denis, G. Wolf, J. Boucrot, O. Callot, A. Cordier, M. Davier, L. Duflot, J. F. Grivaz, Ph Heusse, D. E. Jaffe, P. Janot, D. W. Kim, F. Le Diberder, J. Lefrançois, A. M. Lutz, M. H. Schune, J. J. Veillet, I. Videau, Z. Zhang, D. Abbaneo, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bozzi, G. Calderini, M. Carpinelli, M. A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M. A. Giorgi, A. Gregorio, F. Ligabue, E. B. Mannelli, P. S. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, P. Spagnolo, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P. G. Verdini, J. Walsh, A. P. Betteridge, J. M. Carter, M. G. Green, P. V. March, Ll M. Mir, T. Medcalf, I. S. Quazi, J. A. Strong, L. R. West, D. R. Botterill, R. W. Clifft, T. R. Edgecock, M. Edwards, S. M. Fisher, T. J. Jones, P. R. Norton, D. P. Salmon, J. C. Thompson, B. Bloch-Devaux, P. Colas, H. Duarte, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, P. Perez, F. Perrier, J. Rander, J. F. Renardy, A. Rosowsky, A. Roussarie, J. P. Schuller, J. Schwindling, D. Si Mohand, B. Vallage, R. P. Johnson, A. M. Litke, G. Taylor, J. Wear, J. G. Ashman, W. Babbage, C. N. Booth, C. Buttar, R. E. Carney, S. Cartwright, F. Combley, F. Hatfield, L. F. Thompson, E. Barberio, A. Böhrer, S. Brandt, G. Cowan, C. Grupen, G. Lutters, F. Rivera, U. Schäfer, L. Smolik, R. Della Marina, G. Giannini, B. Gobbo, F. Ragusa, L. Bellantoni, W. Chen, D. Cinabro, J. S. Conway, D. F. Cowen, Z. Feng, D. P.S. Ferguson, Y. S. Gao, J. Grahl, J. L. Harton, R. C. Jared, B. W. LeClaire, C. Lishka, Y. B. Pan, J. R. Pater, Y. Saadi, V. Sharma, M. Schmitt, Z. H. Shi, A. M. Walsh, F. V. Weber, Sau Lan Wu, X. Wu, M. Zheng, G. Zobernig

Research output: Contribution to journal › Article › peer-review

84 Scopus citations

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, α_s(m_τ ²) = 0.330±0.046, evolved to the Z mass yields α_s(M_Z 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%.

Original language	English (US)
Pages (from-to)	209-220
Number of pages	12
Journal	Physics Letters B
Volume	307
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(93)90212-Z
State	Published - Jun 10 1993

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(93)90212-Z

Cite this

Buskulic, D., Decamp, D., Goy, C., Lees, J. P., Minard, M. N., Mours, B., Pietrzyk, B., Alemany, R., Ariztizabal, F., Comas, P., Crespo, J. M., Delfino, M., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, L., Mattison, T., Pacheco, A., Padilla, C., ... Zobernig, G. (1993). Measurement of the strong coupling constant using τ decays. Physics Letters B, 307(1-2), 209-220. https://doi.org/10.1016/0370-2693(93)90212-Z

@article{495be08840434ee88b42db1fde74f0c6,

title = "Measurement of the strong coupling constant using τ decays",

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%.",

author = "D. Buskulic and D. Decamp and C. Goy and Lees, {J. P.} and Minard, {M. N.} and B. Mours and B. Pietrzyk and R. Alemany and F. Ariztizabal and P. Comas and Crespo, {J. M.} and M. Delfino and E. Fernandez and M. Fernandez-Bosman and V. Gaitan and Ll Garrido and T. Mattison and A. Pacheco and C. Padilla and A. Pascual and D. Creanza and {de Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and M. Maggi and S. Natali and S. Nuzzo and M. Quattromini and A. Ranieri and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and Y. Chai and H. Hu and D. Huang and X. Huang and J. Lin and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and L. Zhang and W. Zhao and Bauerdick, {L. A.T.} and E. Blucher and G. Bonvicini and J. Boudreau and D. Casper and H. Drevermann and Forty, {R. W.} and G. Ganis and C. Gay and R. Hagelberg and J. Harvey and S. Haywood and J. Hilgart and R. Jacobsen and B. Jost and J. Knobloch and I. Lehraus and T. Lohse and A. Lusiani and M. Martinez and P. Mato and H. Meinhard and A. Minten and A. Miotto and R. Miquel and Moser, {H. G.} and P. Palazzi and Perlas, {J. A.} and Pusztaszeri, {J. F.} and F. Ranjard and G. Redlinger and L. Rolandi and J. Rothberg and T. Ruan and M. Saich and D. Schlatter and M. Schmelling and F. Sefkow and W. Tejessy and H. Wachsmuth and W. Wiedenmann and T. Wildish and W. Witzeling and J. Wotschack and Z. Ajaltouni and F. Badaud and M. Bardadin-Otwinowska and {El Fellous}, R. and A. Falvard and P. Gay and C. Guicheney and P. Henrard and J. Jousset and B. Michel and Montret, {J. C.} and D. Pallin and P. Perret and F. Podlyski and J. Proriol and F. Prulhi{\`e}re and F. Saadi and T. Fearnley and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and R. M{\o}llerud and Nilsson, {B. S.} and I. Efthymiopoulos and A. Kyriakis and E. Simopoulou and A. Vayaki and K. Zachariadou and J. Badier and A. Blondel and G. Bonneaud and Brient, {J. C.} and G. Fouque and S. Orteu and A. Roug{\'e} and M. Rumpf and R. Tanaka and M. Verderi and H. Videau and Candlin, {D. J.} and Parsons, {M. I.} and E. Veitch and L. Moneta and G. Parrini and M. Corden and C. Georgiopoulos and M. Ikeda and J. Lannutti and D. Levinthal and M. Mermikides and L. Sawyer and S. Wasserbaech and A. Antonelli and R. Baldini and G. Bencivenni and G. Bologna and F. Bossi and P. Campana and G. Capon and F. Cerutti and V. Chiarella and B. D'Ettorre-Piazzoli and G. Felici and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and L. Passalacqua and M. Pepe-Altarelli and P. Picchi and P. Colrain and {ten Have}, I. and Lynch, {J. G.} and W. Maitland and Morton, {W. T.} and C. Raine and P. Reeves and Scarr, {J. M.} and K. Smith and Smith, {M. G.} and Thompson, {A. S.} and Turnbull, {R. M.} and B. Brandl and O. Braun and C. Geweniger and P. Hanke and V. Hepp and Kluge, {E. E.} and Y. Maumary and A. Putzer and B. Rensch and A. Stahl and K. Tittel and M. Wunsch and Belk, {A. T.} and R. Beuselinck and Binnie, {D. M.} and W. Cameron and M. Cattaneo and Colling, {D. J.} and Dornan, {P. J.} and S. Dugeay and Greene, {A. M.} and Hassard, {J. F.} and Lieske, {N. M.} and J. Nash and Payne, {D. G.} and Phillips, {M. J.} and Sedgbeer, {J. K.} and Tomalin, {I. R.} and Wright, {A. G.} and P. Girtler and E. Kneringer and D. Kuhn and G. Rudolph and Bowdery, {C. K.} and Brodbeck, {T. J.} and Finch, {A. J.} and F. Foster and G. Hughes and D. Jackson and Keemer, {N. R.} and M. Nuttall and A. Patel and T. Sloan and Snow, {S. W.} and Whelan, {E. P.} and K. Kleinknecht and J. Raab and B. Renk and Sander, {H. G.} and H. Schmidt and F. Steeg and Walther, {S. M.} and R. Wanke and B. Wolf and Aubert, {J. J.} and Bencheikh, {A. M.} and C. Benchouk and A. Bonissent and J. Carr and P. Coyle and J. Drinkard and F. Etienne and D. Nicod and S. Papalexiou and P. Payre and L. Roos and D. Rousseau and P. Schwemling and M. Talby and S. Adlung and R. Assmann and C. Bauer and W. Blum and D. Brown and P. Cattaneo and B. Dehning and H. Dietl and F. Dydak and M. Frank and Halley, {A. W.} and J. Lauber and G. L{\"u}tjens and G. Lutz and W. M{\"a}nner and R. Richter and H. Rotscheidt and J. Schr{\"o}der and Schwarz, {A. S.} and R. Settles and H. Seywerd and U. Stierlin and U. Stiegler and Denis, {R. St} and G. Wolf and J. Boucrot and O. Callot and A. Cordier and M. Davier and L. Duflot and Grivaz, {J. F.} and Ph Heusse and Jaffe, {D. E.} and P. Janot and Kim, {D. W.} and {Le Diberder}, F. and J. Lefran{\c c}ois and Lutz, {A. M.} and Schune, {M. H.} and Veillet, {J. J.} and I. Videau and Z. Zhang and D. Abbaneo and G. Bagliesi and G. Batignani and L. Bosisio and U. Bottigli and C. Bozzi and G. Calderini and M. Carpinelli and Ciocci, {M. A.} and R. Dell'Orso and I. Ferrante and F. Fidecaro and L. Fo{\`a} and E. Focardi and F. Forti and A. Giassi and Giorgi, {M. A.} and A. Gregorio and F. Ligabue and Mannelli, {E. B.} and Marrocchesi, {P. S.} and A. Messineo and F. Palla and G. Rizzo and G. Sanguinetti and P. Spagnolo and J. Steinberger and R. Tenchini and G. Tonelli and G. Triggiani and C. Vannini and A. Venturi and Verdini, {P. G.} and J. Walsh and Betteridge, {A. P.} and Carter, {J. M.} and Green, {M. G.} and March, {P. V.} and Mir, {Ll M.} and T. Medcalf and Quazi, {I. S.} and Strong, {J. A.} and West, {L. R.} and Botterill, {D. R.} and Clifft, {R. W.} and Edgecock, {T. R.} and M. Edwards and Fisher, {S. M.} and Jones, {T. J.} and Norton, {P. R.} and Salmon, {D. P.} and Thompson, {J. C.} and B. Bloch-Devaux and P. Colas and H. Duarte and W. Kozanecki and E. Lan{\c c}on and Lemaire, {M. C.} and E. Locci and P. Perez and F. Perrier and J. Rander and Renardy, {J. F.} and A. Rosowsky and A. Roussarie and Schuller, {J. P.} and J. Schwindling and {Si Mohand}, D. and B. Vallage and Johnson, {R. P.} and Litke, {A. M.} and G. Taylor and J. Wear and Ashman, {J. G.} and W. Babbage and Booth, {C. N.} and C. Buttar and Carney, {R. E.} and S. Cartwright and F. Combley and F. Hatfield and Thompson, {L. F.} and E. Barberio and A. B{\"o}hrer and S. Brandt and G. Cowan and C. Grupen and G. Lutters and F. Rivera and U. Sch{\"a}fer and L. Smolik and {Della Marina}, R. and G. Giannini and B. Gobbo and F. Ragusa and L. Bellantoni and W. Chen and D. Cinabro and Conway, {J. S.} and Cowen, {D. F.} and Z. Feng and Ferguson, {D. P.S.} and Gao, {Y. S.} and J. Grahl and Harton, {J. L.} and Jared, {R. C.} and LeClaire, {B. W.} and C. Lishka and Pan, {Y. B.} and Pater, {J. R.} and Y. Saadi and V. Sharma and M. Schmitt and Shi, {Z. H.} and Walsh, {A. M.} and Weber, {F. V.} and {Lan Wu}, Sau and X. Wu and M. Zheng and G. Zobernig",

note = "Funding Information: 28 Supported by the US Department of Energy, grant DE-FG03-92ER40689. Funding Information: x Deceased. 2 Now at CERN, PPE Division, 1211 Geneva 23, Switzerland. 3 Permanent address: University of Washington, Seattle, WA 98195, USA. 4 Now at Umverslty of California, Irvlne, CA 92717, USA. 5 Also Istituto di Flslca Generate, Unlversltfi di Tormo, Tormo, Italy. 6 Also Istltuto dl Cosmo-Geofislca del C.N,R., Tormo, Italy. 7 Permanent address: LBL, Berkeley, CA 94720, USA. 8 Supported by CICYT, Spain. 9 Supported by the Natmnal Science Foundatmn of China. 10 Supported by the Danish Natural Science Research Council. 11 Supported by the UK Science and Engmeermg Research Council 12 Supported by the US Department of Energy, contract DE-AC02-76ER00881. 13 Supported by the US Department of Energy, contract DE-FG05-87ER40319. 14 Supported by the NSF, contract PHY-8451274. 15 Supported by the US Department of Energy, contract DE-FCOS-85ER250000. 16 Supported by SLOAN fellowship, contract BR 2703. 17 Supported by the Bundesministerlum thr Forschung und Technologic, Germany. 18 Supported by the Direction des Sciences de la Mati~re, C E.A. 19 Supported by Fonds zur Forderung wissenschaftlichen Forschung, Austna. 20 Supported by the Korean Science and Engineenng Foun-datmn and Ministry of Educatmn.",

year = "1993",

month = jun,

day = "10",

doi = "10.1016/0370-2693(93)90212-Z",

language = "English (US)",

volume = "307",

pages = "209--220",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Buskulic, D, Decamp, D, Goy, C, Lees, JP, Minard, MN, Mours, B, Pietrzyk, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, JM, Delfino, M, Fernandez, E, Fernandez-Bosman, M, Gaitan, V, Garrido, L, Mattison, T, Pacheco, A, Padilla, C, Pascual, A, Creanza, D, de Palma, 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, LAT, Blucher, E, Bonvicini, G, Boudreau, J, Casper, D, Drevermann, H, Forty, RW, 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, HG, Palazzi, P, Perlas, JA, Pusztaszeri, JF, 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, Bardadin-Otwinowska, M, El Fellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, JC, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Prulhière, F, Saadi, F, Fearnley, T, Hansen, JD, Hansen, JR, Hansen, PH, Møllerud, R, Nilsson, BS, Efthymiopoulos, I, Kyriakis, A, Simopoulou, E, Vayaki, A, Zachariadou, K, Badier, J, Blondel, A, Bonneaud, G, Brient, JC, Fouque, G, Orteu, S, Rougé, A, Rumpf, M, Tanaka, R, Verderi, M, Videau, H, Candlin, DJ, Parsons, MI, 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, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Passalacqua, L, Pepe-Altarelli, M, Picchi, P, Colrain, P, ten Have, I, Lynch, JG, Maitland, W, Morton, WT, Raine, C, Reeves, P, Scarr, JM, Smith, K, Smith, MG, Thompson, AS, Turnbull, RM, Brandl, B, Braun, O, Geweniger, C, Hanke, P, Hepp, V, Kluge, EE, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, AT, Beuselinck, R, Binnie, DM, Cameron, W, Cattaneo, M, Colling, DJ, Dornan, PJ, Dugeay, S, Greene, AM, Hassard, JF, Lieske, NM, Nash, J, Payne, DG, Phillips, MJ, Sedgbeer, JK, Tomalin, IR, Wright, AG, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, CK, Brodbeck, TJ, Finch, AJ, Foster, F, Hughes, G, Jackson, D, Keemer, NR, Nuttall, M, Patel, A, Sloan, T, Snow, SW, Whelan, EP, Kleinknecht, K, Raab, J, Renk, B, Sander, HG, Schmidt, H, Steeg, F, Walther, SM, Wanke, R, Wolf, B, Aubert, JJ, Bencheikh, AM, 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, AW, Lauber, J, Lütjens, G, Lutz, G, Männer, W, Richter, R, Rotscheidt, H, Schröder, J, Schwarz, AS, Settles, R, Seywerd, H, Stierlin, U, Stiegler, U, Denis, RS, Wolf, G, Boucrot, J, Callot, O, Cordier, A, Davier, M, Duflot, L, Grivaz, JF, Heusse, P, Jaffe, DE, Janot, P, Kim, DW, Le Diberder, F, Lefrançois, J, Lutz, AM, Schune, MH, Veillet, JJ, Videau, I, Zhang, Z, Abbaneo, D, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, MA, Dell'Orso, R, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, MA, Gregorio, A, Ligabue, F, Mannelli, EB, Marrocchesi, PS, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Spagnolo, P, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, PG, Walsh, J, Betteridge, AP, Carter, JM, Green, MG, March, PV, Mir, LM, Medcalf, T, Quazi, IS, Strong, JA, West, LR, Botterill, DR, Clifft, RW, Edgecock, TR, Edwards, M, Fisher, SM, Jones, TJ, Norton, PR, Salmon, DP, Thompson, JC, Bloch-Devaux, B, Colas, P, Duarte, H, Kozanecki, W, Lançon, E, Lemaire, MC, Locci, E, Perez, P, Perrier, F, Rander, J, Renardy, JF, Rosowsky, A, Roussarie, A, Schuller, JP, Schwindling, J, Si Mohand, D, Vallage, B, Johnson, RP, Litke, AM, Taylor, G, Wear, J, Ashman, JG, Babbage, W, Booth, CN, Buttar, C, Carney, RE, Cartwright, S, Combley, F, Hatfield, F, Thompson, LF, Barberio, E, Böhrer, A, Brandt, S, Cowan, G, Grupen, C, Lutters, G, Rivera, F, Schäfer, U, Smolik, L, Della Marina, R, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Chen, W, Cinabro, D, Conway, JS, Cowen, DF, Feng, Z, Ferguson, DPS, Gao, YS, Grahl, J, Harton, JL, Jared, RC, LeClaire, BW, Lishka, C, Pan, YB, Pater, JR, Saadi, Y, Sharma, V, Schmitt, M, Shi, ZH, Walsh, AM, Weber, FV, Lan Wu, S, Wu, X, Zheng, M & Zobernig, G 1993, 'Measurement of the strong coupling constant using τ decays', Physics Letters B, vol. 307, no. 1-2, pp. 209-220. https://doi.org/10.1016/0370-2693(93)90212-Z

TY - JOUR

T1 - Measurement of the strong coupling constant using τ decays

AU - Buskulic, D.

AU - Decamp, D.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Mours, B.

AU - Pietrzyk, B.

AU - Alemany, R.

AU - Ariztizabal, F.

AU - Comas, P.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Mattison, T.

AU - Pacheco, A.

AU - Padilla, C.

AU - Pascual, A.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Natali, S.

AU - Nuzzo, S.

AU - Quattromini, M.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Chai, Y.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhang, L.

AU - Zhao, W.

AU - Bauerdick, L. A.T.

AU - Blucher, E.

AU - Bonvicini, G.

AU - Boudreau, J.

AU - Casper, D.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Ganis, G.

AU - Gay, C.

AU - Hagelberg, R.

AU - Harvey, J.

AU - Haywood, S.

AU - Hilgart, J.

AU - Jacobsen, R.

AU - Jost, B.

AU - Knobloch, J.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lusiani, A.

AU - Martinez, M.

AU - Mato, P.

AU - Meinhard, H.

AU - Minten, A.

AU - Miotto, A.

AU - Miquel, R.

AU - Moser, H. G.

AU - Palazzi, P.

AU - Perlas, J. A.

AU - Pusztaszeri, J. F.

AU - Ranjard, F.

AU - Redlinger, G.

AU - Rolandi, L.

AU - Rothberg, J.

AU - Ruan, T.

AU - Saich, M.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Sefkow, F.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wiedenmann, W.

AU - Wildish, T.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Badaud, F.

AU - Bardadin-Otwinowska, M.

AU - El Fellous, R.

AU - Falvard, A.

AU - Gay, P.

AU - Guicheney, C.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Podlyski, F.

AU - Proriol, J.

AU - Prulhière, F.

AU - Saadi, F.

AU - Fearnley, T.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Møllerud, R.

AU - Nilsson, B. S.

AU - Efthymiopoulos, I.

AU - Kyriakis, A.

AU - Simopoulou, E.

AU - Vayaki, A.

AU - Zachariadou, K.

AU - Badier, J.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Brient, J. C.

AU - Fouque, G.

AU - Orteu, S.

AU - Rougé, A.

AU - Rumpf, M.

AU - Tanaka, R.

AU - Verderi, M.

AU - Videau, H.

AU - Candlin, D. J.

AU - Parsons, M. I.

AU - Veitch, E.

AU - Moneta, L.

AU - Parrini, G.

AU - Corden, M.

AU - Georgiopoulos, C.

AU - Ikeda, M.

AU - Lannutti, J.

AU - Levinthal, D.

AU - Mermikides, M.

AU - Sawyer, L.

AU - Wasserbaech, S.

AU - Antonelli, A.

AU - Baldini, R.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Bossi, F.

AU - Campana, P.

AU - Capon, G.

AU - Cerutti, F.

AU - Chiarella, V.

AU - D'Ettorre-Piazzoli, B.

AU - Felici, G.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Passalacqua, L.

AU - Pepe-Altarelli, M.

AU - Picchi, P.

AU - Colrain, P.

AU - ten Have, I.

AU - Lynch, J. G.

AU - Maitland, W.

AU - Morton, W. T.

AU - Raine, C.

AU - Reeves, P.

AU - Scarr, J. M.

AU - Smith, K.

AU - Smith, M. G.

AU - Thompson, A. S.

AU - Turnbull, R. M.

AU - Brandl, B.

AU - Braun, O.

AU - Geweniger, C.

AU - Hanke, P.

AU - Hepp, V.

AU - Kluge, E. E.

AU - Maumary, Y.

AU - Putzer, A.

AU - Rensch, B.

AU - Stahl, A.

AU - Tittel, K.

AU - Wunsch, M.

AU - Belk, A. T.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Cameron, W.

AU - Cattaneo, M.

AU - Colling, D. J.

AU - Dornan, P. J.

AU - Dugeay, S.

AU - Greene, A. M.

AU - Hassard, J. F.

AU - Lieske, N. M.

AU - Nash, J.

AU - Payne, D. G.

AU - Phillips, M. J.

AU - Sedgbeer, J. K.

AU - Tomalin, I. R.

AU - Wright, A. G.

AU - Girtler, P.

AU - Kneringer, E.

AU - Kuhn, D.

AU - Rudolph, G.

AU - Bowdery, C. K.

AU - Brodbeck, T. J.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Jackson, D.

AU - Keemer, N. R.

AU - Nuttall, M.

AU - Patel, A.

AU - Sloan, T.

AU - Snow, S. W.

AU - Whelan, E. P.

AU - Kleinknecht, K.

AU - Raab, J.

AU - Renk, B.

AU - Sander, H. G.

AU - Schmidt, H.

AU - Steeg, F.

AU - Walther, S. M.

AU - Wanke, R.

AU - Wolf, B.

AU - Aubert, J. J.

AU - Bencheikh, A. M.

AU - Benchouk, C.

AU - Bonissent, A.

AU - Carr, J.

AU - Coyle, P.

AU - Drinkard, J.

AU - Etienne, F.

AU - Nicod, D.

AU - Papalexiou, S.

AU - Payre, P.

AU - Roos, L.

AU - Rousseau, D.

AU - Schwemling, P.

AU - Talby, M.

AU - Adlung, S.

AU - Assmann, R.

AU - Bauer, C.

AU - Blum, W.

AU - Brown, D.

AU - Cattaneo, P.

AU - Dehning, B.

AU - Dietl, H.

AU - Dydak, F.

AU - Frank, M.

AU - Halley, A. W.

AU - Lauber, J.

AU - Lütjens, G.

AU - Lutz, G.

AU - Männer, W.

AU - Richter, R.

AU - Rotscheidt, H.

AU - Schröder, J.

AU - Schwarz, A. S.

AU - Settles, R.

AU - Seywerd, H.

AU - Stierlin, U.

AU - Stiegler, U.

AU - Denis, R. St

AU - Wolf, G.

AU - Boucrot, J.

AU - Callot, O.

AU - Cordier, A.

AU - Davier, M.

AU - Duflot, L.

AU - Grivaz, J. F.

AU - Heusse, Ph

AU - Jaffe, D. E.

AU - Janot, P.

AU - Kim, D. W.

AU - Le Diberder, F.

AU - Lefrançois, J.

AU - Lutz, A. M.

AU - Schune, M. H.

AU - Veillet, J. J.

AU - Videau, I.

AU - Zhang, Z.

AU - Abbaneo, D.

AU - Bagliesi, G.

AU - Batignani, G.

AU - Bosisio, L.

AU - Bottigli, U.

AU - Bozzi, C.

AU - Calderini, G.

AU - Carpinelli, M.

AU - Ciocci, M. A.

AU - Dell'Orso, R.

AU - Ferrante, I.

AU - Fidecaro, F.

AU - Foà, L.

AU - Focardi, E.

AU - Forti, F.

AU - Giassi, A.

AU - Giorgi, M. A.

AU - Gregorio, A.

AU - Ligabue, F.

AU - Mannelli, E. B.

AU - Marrocchesi, P. S.

AU - Messineo, A.

AU - Palla, F.

AU - Rizzo, G.

AU - Sanguinetti, G.

AU - Spagnolo, P.

AU - Steinberger, J.

AU - Tenchini, R.

AU - Tonelli, G.

AU - Triggiani, G.

AU - Vannini, C.

AU - Venturi, A.

AU - Verdini, P. G.

AU - Walsh, J.

AU - Betteridge, A. P.

AU - Carter, J. M.

AU - Green, M. G.

AU - March, P. V.

AU - Mir, Ll M.

AU - Medcalf, T.

AU - Quazi, I. S.

AU - Strong, J. A.

AU - West, L. R.

AU - Botterill, D. R.

AU - Clifft, R. W.

AU - Edgecock, T. R.

AU - Edwards, M.

AU - Fisher, S. M.

AU - Jones, T. J.

AU - Norton, P. R.

AU - Salmon, D. P.

AU - Thompson, J. C.

AU - Bloch-Devaux, B.

AU - Colas, P.

AU - Duarte, H.

AU - Kozanecki, W.

AU - Lançon, E.

AU - Lemaire, M. C.

AU - Locci, E.

AU - Perez, P.

AU - Perrier, F.

AU - Rander, J.

AU - Renardy, J. F.

AU - Rosowsky, A.

AU - Roussarie, A.

AU - Schuller, J. P.

AU - Schwindling, J.

AU - Si Mohand, D.

AU - Vallage, B.

AU - Johnson, R. P.

AU - Litke, A. M.

AU - Taylor, G.

AU - Wear, J.

AU - Ashman, J. G.

AU - Babbage, W.

AU - Booth, C. N.

AU - Buttar, C.

AU - Carney, R. E.

AU - Cartwright, S.

AU - Combley, F.

AU - Hatfield, F.

AU - Thompson, L. F.

AU - Barberio, E.

AU - Böhrer, A.

AU - Brandt, S.

AU - Cowan, G.

AU - Grupen, C.

AU - Lutters, G.

AU - Rivera, F.

AU - Schäfer, U.

AU - Smolik, L.

AU - Della Marina, R.

AU - Giannini, G.

AU - Gobbo, B.

AU - Ragusa, F.

AU - Bellantoni, L.

AU - Chen, W.

AU - Cinabro, D.

AU - Conway, J. S.

AU - Cowen, D. F.

AU - Feng, Z.

AU - Ferguson, D. P.S.

AU - Gao, Y. S.

AU - Grahl, J.

AU - Harton, J. L.

AU - Jared, R. C.

AU - LeClaire, B. W.

AU - Lishka, C.

AU - Pan, Y. B.

AU - Pater, J. R.

AU - Saadi, Y.

AU - Sharma, V.

AU - Schmitt, M.

AU - Shi, Z. H.

AU - Walsh, A. M.

AU - Weber, F. V.

AU - Lan Wu, Sau

AU - Wu, X.

AU - Zheng, M.

AU - Zobernig, G.

N1 - Funding Information: 28 Supported by the US Department of Energy, grant DE-FG03-92ER40689. Funding Information: x Deceased. 2 Now at CERN, PPE Division, 1211 Geneva 23, Switzerland. 3 Permanent address: University of Washington, Seattle, WA 98195, USA. 4 Now at Umverslty of California, Irvlne, CA 92717, USA. 5 Also Istituto di Flslca Generate, Unlversltfi di Tormo, Tormo, Italy. 6 Also Istltuto dl Cosmo-Geofislca del C.N,R., Tormo, Italy. 7 Permanent address: LBL, Berkeley, CA 94720, USA. 8 Supported by CICYT, Spain. 9 Supported by the Natmnal Science Foundatmn of China. 10 Supported by the Danish Natural Science Research Council. 11 Supported by the UK Science and Engmeermg Research Council 12 Supported by the US Department of Energy, contract DE-AC02-76ER00881. 13 Supported by the US Department of Energy, contract DE-FG05-87ER40319. 14 Supported by the NSF, contract PHY-8451274. 15 Supported by the US Department of Energy, contract DE-FCOS-85ER250000. 16 Supported by SLOAN fellowship, contract BR 2703. 17 Supported by the Bundesministerlum thr Forschung und Technologic, Germany. 18 Supported by the Direction des Sciences de la Mati~re, C E.A. 19 Supported by Fonds zur Forderung wissenschaftlichen Forschung, Austna. 20 Supported by the Korean Science and Engineenng Foun-datmn and Ministry of Educatmn.

PY - 1993/6/10

Y1 - 1993/6/10

N2 - 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%.

AB - 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%.

UR - http://www.scopus.com/inward/record.url?scp=1542616995&partnerID=8YFLogxK

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U2 - 10.1016/0370-2693(93)90212-Z

DO - 10.1016/0370-2693(93)90212-Z

M3 - Article

AN - SCOPUS:1542616995

SN - 0370-2693

VL - 307

SP - 209

EP - 220

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Measurement of the strong coupling constant using τ decays

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