Test of the flavour independence of αs

D. Buskulic; D. Casper; I. De Bonis; D. Decamp; P. Ghez; C. Goy; J. P. Lees; M. N. Minard; P. Odier; B. Pietrzyk; F. Ariztizabal; M. Chmeissani; J. M. Crespo; I. Efthymiopoulos; E. Fernandez; M. Fernandez-Bosman; V. Gaitan; Ll Garrido; M. Martinez; S. Orteu; A. Pacheco; C. Padilla; F. Palla; A. Pascual; J. A. Perlas; F. Sanchez; F. Teubert; D. Creanza; M. de Palma; A. Farilla; G. Iaselli; G. Maggi; N. Marinelli; S. Natali; S. Nuzzo; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; X. Huang; J. Lin; Q. Ouyang; T. Wang; Y. Xie; R. Xu; S. Xue; J. Zhang; L. Zhang; W. Zhao; G. Bonvicini; M. Cattaneo; P. Comas; P. Coyle; H. Drevermann; A. Engelhardt; R. W. Forty; M. Frank; M. Girone; R. Hagelberg; J. Harvey; R. Jacobsen; P. Janot; B. Jost; J. Knobloch; I. Lehraus; M. Maggi; C. Markou; E. B. Martin; P. Mato; H. Meinhard; A. Minten; R. Miquel; T. Oest; P. Palazzi; J. R. Pater; P. Perrodo; J. F. Pusztaszeri; F. Ranjard; P. Rensing; L. Rolandi; D. Schlatter; M. Schmelling; O. Schneider; W. Tejessy; I. R. Tomalin; A. Venturi; H. Wachsmuth; W. Wiedenmann; T. Wildish; W. Witzeling; J. Wotschack; Z. Ajaltouni; M. Bardadin-Otwinowska; A. Barres; C. Boyer; A. Falvard; P. Gay; C. Guicheney; P. Henrard; J. Jousset; B. Michel; S. Monteil; J. C. Montret; D. Pallin; P. Perret; F. Podlyski; J. Proriol; J. M. Rossignol; F. Saadi; T. Fearnley; J. B. Hansen; J. D. Hansen; J. R. Hansen; P. H. Hansen; B. S. Nilsson; A. Kyriakis; E. Simopoulou; I. Siotis; A. Vayaki; K. Zachariadou; A. Blondel; G. Bonneaud; J. C. Brient; P. Bourdon; L. Passalacqua; A. Rougé; M. Rumpf; R. Tanaka; A. Valassi; M. Verderi; H. Videau; D. J. Candlin; M. I. Parsons; E. Focardi; G. Parrini; M. Corden; M. Delfino; C. Georgiopoulos; D. E. Jaffe; A. Antonelli; G. Bencivenni; G. Bologna; F. Bossi; P. Campana; G. Capon; F. Cerutti; V. Chiarella; G. Felici; P. Laurelli; G. Mannocchi; F. Murtas; G. P. Murtas; M. Pepe-Altarelli; S. J. Dorris; A. W. Halley; I. ten Have; I. G. Knowles; J. G. Lynch; W. T. Morton; V. O'Shea; C. Raine; P. Reeves; J. M. Scarr; K. Smith; M. G. Smith; A. S. Thompson; F. Thompson; S. Thorn; R. M. Turnbull; U. Becker; O. Braun; C. Geweniger; G. Graefe; P. Hanke; V. Hepp; E. E. Kluge; A. Putzer; B. Rensch; M. Schmidt; J. Sommer; H. Stenzel; K. Tittel; S. Werner; M. Wunsch; R. Beuselinck; D. M. Binnie; W. Cameron; D. J. Colling; P. J. Dornan; N. Konstantinidis; L. Moneta; A. Moutoussi; J. Nash; G. San Martin; J. K. Sedgbeer; A. M. Stacey; G. Dissertori; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; C. K. Bowdery; T. J. Brodbeck; P. Colrain; G. Crawford; A. J. Finch; F. Foster; G. Hughes; T. Sloan; E. P. Whelan; M. I. Williams; A. Galla; A. M. Greene; K. Kleinknecht; G. Quast; J. Raab; B. Renk; H. G. Sander; R. Wanke; C. Zeitnitz; J. J. Aubert; A. M. Bencheikh; C. Benchouk; A. Bonissent; G. Bujosa; D. Calvet; J. Carr; C. Diaconu; F. Etienne; M. Thulasidas; D. Nicod; P. Payre; D. Rousseau; M. Talby; I. Abt; R. Assmann; C. Bauer; W. Blum; D. Brown; H. Dietl; F. Dydak; C. Gotzhein; K. Jakobs; H. Kroha; G. Lütjens; G. Lutz; W. Männer; H. G. Moser; R. Richter; A. Rosado-Schlosser; A. S. Schwarz; R. Settles; H. Seywerd; U. Stierlin; R. St Denis; G. Wolf; R. Alemany; J. Boucrot; O. Callot; A. Cordier; F. Courault; M. Davier; L. Duflot; J. F. Grivaz; Ph Heusse; M. Jacquet; D. W. Kim; F. Le Diberder; J. Lefrançois; A. M. Lutz; G. Musolino; I. Nikolic; H. J. Park; I. C. Park; M. H. Schune; S. Simion; J. J. Veillet; I. Videau; D. Abbaneo; P. Azzurri; G. Bagliesi; G. Batignani; S. Bettarini; C. Bozzi; G. Calderini; M. Carpinelli; M. A. Ciocci; V. Ciulli; R. Dell'Orso; I. Ferrante; L. Foà; F. Forti; A. Giassi; M. A. Giorgi; A. Gregorio; F. Ligabue; A. Lusiani; P. S. Marrocchesi; A. Messineo; G. Rizzo; G. Sanguinetti; A. Sciabà; P. Spagnolo; J. Steinberger; R. Tenchini; G. Tonelli; G. Triggiani; C. Vannini; P. G. Verdini; J. Walsh; A. P. Betteridge; G. A. Blair; L. M. Bryant; Y. Gao; M. G. Green; D. L. Johnson; T. Medcalf; Ll M. Mir; J. A. Strong; V. Bertin; D. R. Botterill; R. W. Clifft; T. R. Edgecock; S. Haywood; M. Edwards; P. Maley; P. R. Norton; J. C. Thompson; B. Bloch-Devaux; P. Colas; H. Duarte; S. Emery; W. Kozanecki; E. Lançon; M. C. Lemaire; E. Locci; B. Marx; P. Perez; J. Rander; J. F. Renardy; A. Rosowsky; A. Roussarie; J. P. Schuller; J. Schwindling; D. Si Mohand; A. Trabelsi; B. Vallage; R. P. Johnson; H. Y. Kim; A. M. Litke; M. A. McNeil; G. Taylor; A. Beddall; C. N. Booth; R. Boswell; S. Cartwright; F. Combley; I. Dawson; A. Koksal; M. Letho; W. M. Newton; C. Rankin; L. F. Thompson; A. Böhrer; S. Brandt; G. Cowan; E. Feigl; C. Grupen; G. Lutters; J. Minguet-Rodriguez; F. Rivera; P. Saraiva; L. Smolik; F. Stephan; L. Bosisio; R. Della Marina; G. Ganis; G. Giannini; B. Gobbo; L. Pitis; F. Ragusa; J. Rothberg; S. Wasserbaech; S. R. Armstrong; L. Bellantoni; P. Elmer; Z. Feng; D. P.S. Ferguson; Y. S. Gao; S. González; J. Grahl; J. L. Harton; O. J. Hayes; H. Hu; P. A. McNamara; J. M. Nachtman; W. Orejudos; Y. B. Pan; Y. Saadi; M. Schmitt; I. J. Scott; V. Sharma; J. D. Turk; A. M. Walsh; F. V. Weber; Sau Lan Wu; X. Wu; J. M. Yamartino; M. Zheng; G. Zobernig

doi:10.1016/0370-2693(95)00713-U

Test of the flavour independence of α_s

D. Buskulic, D. Casper, I. De Bonis, D. Decamp, P. Ghez, C. Goy, J. P. Lees, M. N. Minard, P. Odier, B. Pietrzyk, F. Ariztizabal, M. Chmeissani, J. M. Crespo, I. Efthymiopoulos, E. Fernandez, M. Fernandez-Bosman, V. Gaitan, Ll Garrido, M. Martinez, S. OrteuA. Pacheco, C. Padilla, F. Palla, A. Pascual, J. A. Perlas, F. Sanchez, F. Teubert, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, N. Marinelli, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, G. Bonvicini, M. Cattaneo, P. Comas, P. Coyle, H. Drevermann, A. Engelhardt, R. W. Forty, M. Frank, M. Girone, R. Hagelberg, J. Harvey, R. Jacobsen, P. Janot, B. Jost, J. Knobloch, I. Lehraus, M. Maggi, C. Markou, E. B. Martin, P. Mato, H. Meinhard, A. Minten, R. Miquel, T. Oest, P. Palazzi, J. R. Pater, P. Perrodo, J. F. Pusztaszeri, F. Ranjard, P. Rensing, L. Rolandi, D. Schlatter, M. Schmelling, O. Schneider, W. Tejessy, I. R. Tomalin, A. Venturi, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Barres, C. Boyer, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J. C. Montret, D. Pallin, P. Perret, F. Podlyski, J. Proriol, J. M. Rossignol, F. Saadi, T. Fearnley, J. B. Hansen, J. D. Hansen, J. R. Hansen, P. H. Hansen, B. S. Nilsson, A. Kyriakis, E. Simopoulou, I. Siotis, A. Vayaki, K. Zachariadou, A. Blondel, G. Bonneaud, J. C. Brient, P. Bourdon, L. Passalacqua, A. Rougé, M. Rumpf, R. Tanaka, A. Valassi, M. Verderi, H. Videau, D. J. Candlin, M. I. Parsons, E. Focardi, G. Parrini, M. Corden, M. Delfino, C. Georgiopoulos, D. E. Jaffe, A. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, F. Cerutti, V. Chiarella, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, M. Pepe-Altarelli, S. J. Dorris, A. W. Halley, I. ten Have, I. G. Knowles, J. G. Lynch, W. T. Morton, V. O'Shea, C. Raine, P. Reeves, J. M. Scarr, K. Smith, M. G. Smith, A. S. Thompson, F. Thompson, S. Thorn, R. M. Turnbull, U. Becker, O. Braun, C. Geweniger, G. Graefe, P. Hanke, V. Hepp, E. E. Kluge, A. Putzer, B. Rensch, M. Schmidt, J. Sommer, H. Stenzel, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. M. Binnie, W. Cameron, D. J. Colling, P. J. Dornan, N. Konstantinidis, L. Moneta, A. Moutoussi, J. Nash, G. San Martin, J. K. Sedgbeer, A. M. Stacey, G. Dissertori, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C. K. Bowdery, T. J. Brodbeck, P. Colrain, G. Crawford, A. J. Finch, F. Foster, G. Hughes, T. Sloan, E. P. Whelan, M. I. Williams, A. Galla, A. M. Greene, K. Kleinknecht, G. Quast, J. Raab, B. Renk, H. G. Sander, R. Wanke, C. Zeitnitz, J. J. Aubert, A. M. Bencheikh, C. Benchouk, A. Bonissent, G. Bujosa, D. Calvet, J. Carr, C. Diaconu, F. Etienne, M. Thulasidas, D. Nicod, P. Payre, D. Rousseau, M. Talby, I. Abt, R. Assmann, C. Bauer, W. Blum, D. Brown, H. Dietl, F. Dydak, C. Gotzhein, K. Jakobs, H. Kroha, G. Lütjens, G. Lutz, W. Männer, H. G. Moser, R. Richter, A. Rosado-Schlosser, A. S. Schwarz, R. Settles, H. Seywerd, U. Stierlin, R. St Denis, G. Wolf, R. Alemany, J. Boucrot, O. Callot, A. Cordier, F. Courault, M. Davier, L. Duflot, J. F. Grivaz, Ph Heusse, M. Jacquet, D. W. Kim, F. Le Diberder, J. Lefrançois, A. M. Lutz, G. Musolino, I. Nikolic, H. J. Park, I. C. Park, M. H. Schune, S. Simion, J. J. Veillet, I. Videau, D. Abbaneo, P. Azzurri, G. Bagliesi, G. Batignani, S. Bettarini, C. Bozzi, G. Calderini, M. Carpinelli, M. A. Ciocci, V. Ciulli, R. Dell'Orso, I. Ferrante, L. Foà, F. Forti, A. Giassi, M. A. Giorgi, A. Gregorio, F. Ligabue, A. Lusiani, P. S. Marrocchesi, A. Messineo, G. Rizzo, G. Sanguinetti, A. Sciabà, P. Spagnolo, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, P. G. Verdini, J. Walsh, A. P. Betteridge, G. A. Blair, L. M. Bryant, Y. Gao, M. G. Green, D. L. Johnson, T. Medcalf, Ll M. Mir, J. A. Strong, V. Bertin, D. R. Botterill, R. W. Clifft, T. R. Edgecock, S. Haywood, M. Edwards, P. Maley, P. R. Norton, J. C. Thompson, B. Bloch-Devaux, P. Colas, H. Duarte, S. Emery, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, B. Marx, P. Perez, J. Rander, J. F. Renardy, A. Rosowsky, A. Roussarie, J. P. Schuller, J. Schwindling, D. Si Mohand, A. Trabelsi, B. Vallage, R. P. Johnson, H. Y. Kim, A. M. Litke, M. A. McNeil, G. Taylor, A. Beddall, C. N. Booth, R. Boswell, S. Cartwright, F. Combley, I. Dawson, A. Koksal, M. Letho, W. M. Newton, C. Rankin, L. F. Thompson, A. Böhrer, S. Brandt, G. Cowan, E. Feigl, C. Grupen, G. Lutters, J. Minguet-Rodriguez, F. Rivera, P. Saraiva, L. Smolik, F. Stephan, L. Bosisio, R. Della Marina, G. Ganis, G. Giannini, B. Gobbo, L. Pitis, F. Ragusa, J. Rothberg, S. Wasserbaech, S. R. Armstrong, L. Bellantoni, P. Elmer, Z. Feng, D. P.S. Ferguson, Y. S. Gao, S. González, J. Grahl, J. L. Harton, O. J. Hayes, H. Hu, P. A. McNamara, J. M. Nachtman, W. Orejudos, Y. B. Pan, Y. Saadi, M. Schmitt, I. J. Scott, V. Sharma, J. D. Turk, A. M. Walsh, F. V. Weber, Sau Lan Wu, X. Wu, J. M. Yamartino, M. Zheng, G. Zobernig

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

20 Scopus citations

Abstract

Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios r^b = α_s ^b α_s ^udsc and r^uds = α_s ^uds α_s ^cb have been measured in order to test the flavour independence of the strong coupling constant α_s. The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are r^b = 1.002±0.023 and r^uds = 0.971 ± 0.023.

Original language	English (US)
Pages (from-to)	381-393
Number of pages	13
Journal	Physics Letters B
Volume	355
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(95)00713-U
State	Published - Jul 27 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(95)00713-U

Cite this

Buskulic, D., Casper, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J. P., Minard, M. N., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J. M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, L., Martinez, M., ... Zobernig, G. (1995). Test of the flavour independence of α_s Physics Letters B, 355(1-2), 381-393. https://doi.org/10.1016/0370-2693(95)00713-U

@article{6ccc75b4ad4e479589ee7323d13954cf,

title = "Test of the flavour independence of αs ",

abstract = "Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios rb = αs b αs udsc and ruds = αs uds αs cb have been measured in order to test the flavour independence of the strong coupling constant αs. The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are rb = 1.002±0.023 and ruds = 0.971 ± 0.023.",

author = "D. Buskulic and D. Casper and {De Bonis}, I. and D. Decamp and P. Ghez and C. Goy and Lees, {J. P.} and Minard, {M. N.} and P. Odier and B. Pietrzyk and F. Ariztizabal and M. Chmeissani and Crespo, {J. M.} and I. Efthymiopoulos and E. Fernandez and M. Fernandez-Bosman and V. Gaitan and Ll Garrido and M. Martinez and S. Orteu and A. Pacheco and C. Padilla and F. Palla and A. Pascual and Perlas, {J. A.} and F. Sanchez and F. Teubert and D. Creanza and {de Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and N. Marinelli and S. Natali and S. Nuzzo 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 X. Huang and J. Lin and Q. Ouyang and T. Wang and Y. Xie and R. Xu and S. Xue and J. Zhang and L. Zhang and W. Zhao and G. Bonvicini and M. Cattaneo and P. Comas and P. Coyle and H. Drevermann and A. Engelhardt and Forty, {R. W.} and M. Frank and M. Girone and R. Hagelberg and J. Harvey and R. Jacobsen and P. Janot and B. Jost and J. Knobloch and I. Lehraus and M. Maggi and C. Markou and Martin, {E. B.} and P. Mato and H. Meinhard and A. Minten and R. Miquel and T. Oest and P. Palazzi and Pater, {J. R.} and P. Perrodo and Pusztaszeri, {J. F.} and F. Ranjard and P. Rensing and L. Rolandi and D. Schlatter and M. Schmelling and O. Schneider and W. Tejessy and Tomalin, {I. R.} and A. Venturi and H. Wachsmuth and W. Wiedenmann and T. Wildish and W. Witzeling and J. Wotschack and Z. Ajaltouni and M. Bardadin-Otwinowska and A. Barres and C. Boyer and A. Falvard and P. Gay and C. Guicheney and P. Henrard and J. Jousset and B. Michel and S. Monteil and Montret, {J. C.} and D. Pallin and P. Perret and F. Podlyski and J. Proriol and Rossignol, {J. M.} and F. Saadi and T. Fearnley and Hansen, {J. B.} and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and Nilsson, {B. S.} and A. Kyriakis and E. Simopoulou and I. Siotis and A. Vayaki and K. Zachariadou and A. Blondel and G. Bonneaud and Brient, {J. C.} and P. Bourdon and L. Passalacqua and A. Roug{\'e} and M. Rumpf and R. Tanaka and A. Valassi and M. Verderi and H. Videau and Candlin, {D. J.} and Parsons, {M. I.} and E. Focardi and G. Parrini and M. Corden and M. Delfino and C. Georgiopoulos and Jaffe, {D. E.} and A. Antonelli and G. Bencivenni and G. Bologna and F. Bossi and P. Campana and G. Capon and F. Cerutti and V. Chiarella and G. Felici and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and M. Pepe-Altarelli and Dorris, {S. J.} and Halley, {A. W.} and {ten Have}, I. and Knowles, {I. G.} and Lynch, {J. G.} and Morton, {W. T.} and V. O'Shea and C. Raine and P. Reeves and Scarr, {J. M.} and K. Smith and Smith, {M. G.} and Thompson, {A. S.} and F. Thompson and S. Thorn and Turnbull, {R. M.} and U. Becker and O. Braun and C. Geweniger and G. Graefe and P. Hanke and V. Hepp and Kluge, {E. E.} and A. Putzer and B. Rensch and M. Schmidt and J. Sommer and H. Stenzel and K. Tittel and S. Werner and M. Wunsch and R. Beuselinck and Binnie, {D. M.} and W. Cameron and Colling, {D. J.} and Dornan, {P. J.} and N. Konstantinidis and L. Moneta and A. Moutoussi and J. Nash and {San Martin}, G. and Sedgbeer, {J. K.} and Stacey, {A. M.} and G. Dissertori and P. Girtler and E. Kneringer and D. Kuhn and G. Rudolph and Bowdery, {C. K.} and Brodbeck, {T. J.} and P. Colrain and G. Crawford and Finch, {A. J.} and F. Foster and G. Hughes and T. Sloan and Whelan, {E. P.} and Williams, {M. I.} and A. Galla and Greene, {A. M.} and K. Kleinknecht and G. Quast and J. Raab and B. Renk and Sander, {H. G.} and R. Wanke and C. Zeitnitz and Aubert, {J. J.} and Bencheikh, {A. M.} and C. Benchouk and A. Bonissent and G. Bujosa and D. Calvet and J. Carr and C. Diaconu and F. Etienne and M. Thulasidas and D. Nicod and P. Payre and D. Rousseau and M. Talby and I. Abt and R. Assmann and C. Bauer and W. Blum and D. Brown and H. Dietl and F. Dydak and C. Gotzhein and K. Jakobs and H. Kroha and G. L{\"u}tjens and G. Lutz and W. M{\"a}nner and Moser, {H. G.} and R. Richter and A. Rosado-Schlosser and Schwarz, {A. S.} and R. Settles and H. Seywerd and U. Stierlin and Denis, {R. St} and G. Wolf and R. Alemany and J. Boucrot and O. Callot and A. Cordier and F. Courault and M. Davier and L. Duflot and Grivaz, {J. F.} and Ph Heusse and M. Jacquet and Kim, {D. W.} and {Le Diberder}, F. and J. Lefran{\c c}ois and Lutz, {A. M.} and G. Musolino and I. Nikolic and Park, {H. J.} and Park, {I. C.} and Schune, {M. H.} and S. Simion and Veillet, {J. J.} and I. Videau and D. Abbaneo and P. Azzurri and G. Bagliesi and G. Batignani and S. Bettarini and C. Bozzi and G. Calderini and M. Carpinelli and Ciocci, {M. A.} and V. Ciulli and R. Dell'Orso and I. Ferrante and L. Fo{\`a} and F. Forti and A. Giassi and Giorgi, {M. A.} and A. Gregorio and F. Ligabue and A. Lusiani and Marrocchesi, {P. S.} and A. Messineo and G. Rizzo and G. Sanguinetti and A. Sciab{\`a} and P. Spagnolo and J. Steinberger and R. Tenchini and G. Tonelli and G. Triggiani and C. Vannini and Verdini, {P. G.} and J. Walsh and Betteridge, {A. P.} and Blair, {G. A.} and Bryant, {L. M.} and Y. Gao and Green, {M. G.} and Johnson, {D. L.} and T. Medcalf and Mir, {Ll M.} and Strong, {J. A.} and V. Bertin and Botterill, {D. R.} and Clifft, {R. W.} and Edgecock, {T. R.} and S. Haywood and M. Edwards and P. Maley and Norton, {P. R.} and Thompson, {J. C.} and B. Bloch-Devaux and P. Colas and H. Duarte and S. Emery and W. Kozanecki and E. Lan{\c c}on and Lemaire, {M. C.} and E. Locci and B. Marx and P. Perez 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 A. Trabelsi and B. Vallage and Johnson, {R. P.} and Kim, {H. Y.} and Litke, {A. M.} and McNeil, {M. A.} and G. Taylor and A. Beddall and Booth, {C. N.} and R. Boswell and S. Cartwright and F. Combley and I. Dawson and A. Koksal and M. Letho and Newton, {W. M.} and C. Rankin and Thompson, {L. F.} and A. B{\"o}hrer and S. Brandt and G. Cowan and E. Feigl and C. Grupen and G. Lutters and J. Minguet-Rodriguez and F. Rivera and P. Saraiva and L. Smolik and F. Stephan and L. Bosisio and {Della Marina}, R. and G. Ganis and G. Giannini and B. Gobbo and L. Pitis and F. Ragusa and J. Rothberg and S. Wasserbaech and Armstrong, {S. R.} and L. Bellantoni and P. Elmer and Z. Feng and Ferguson, {D. P.S.} and Gao, {Y. S.} and S. Gonz{\'a}lez and J. Grahl and Harton, {J. L.} and Hayes, {O. J.} and H. Hu and McNamara, {P. A.} and Nachtman, {J. M.} and W. Orejudos and Pan, {Y. B.} and Y. Saadi and M. Schmitt and Scott, {I. J.} and V. Sharma and Turk, {J. D.} and Walsh, {A. M.} and Weber, {F. V.} and Wu, {Sau Lan} and X. Wu and Yamartino, {J. M.} and M. Zheng and G. Zobernig",

note = "Funding Information: Council. {\textquoteleft}t Supportedb y the US Departmento f Energy, contract DE-AC02-76ER0088 1. {\textquoteleft}* On leave from Universitat Autonoma de Barcelona, Barcelona, Spain. l3 Supportedb y the US Departmento f Energy, contract DE-FGOS-92ER40742. t4 Supportedb y the US Departmentof Energy, contract DEFCOS-85ER250000. l5 Permanenta ddress:U niversitat de Barcelona, 08208 Barcelona, Spain. l6 Supported by the Bundesministerium fti Forschung und Tech- Funding Information: nologie, Germany. l7 Supported by the Direction des Sciences de la Matiere, C.E.A. l8 Supported by Fonds zur Fiirderung der wissenschaftlichen Forschung, Austria. I9 Permanent address: Kangnung National University, Kangnung, Korea. *ON ow at Dipartimento di Fisica, Universim di Milano, Milano, Italy. 2* Also at CERN, 1211 Geneva 23, Switzerland. 22S upported by the US Departmento f Energy, grant DE-FGO3-92ER40689. 23N ow at DESY, Hamburg, Germany. z4 Now at Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. 25P artially supported by Colciencias, Colombia. 26A lso at Istituto di Matematica e Fisica, Universim di Sassari, sassari, Italy. 27N ow at University of Athens, 157-71 Athens, Greece. Funding Information: {\textquoteright} Now at CERN, 1211 Geneva 23, Switzerland. 2 Deceased. 3 Now at Dipartimento di Fisica, Universim di Lecce, 73100 Lecce, Italy. 4 Also Istituto di Fisica Generale, Universim di Torino, Torino, Italy. {\textquoteleft}Also Istimto di Cosmo-Geofisica de1 C.N.R., Torino, Italy. 6 Now at TSM Business School, Enschede, The Netherlands. 7 Supported by CICYT, Spain. 8 Supported by the National Science Foundation of China. g Supported by the Danish Natural Science Research Council. lo Supportedb y the UK Particle Physics and Astronomy Research",

year = "1995",

month = jul,

day = "27",

doi = "10.1016/0370-2693(95)00713-U",

language = "English (US)",

volume = "355",

pages = "381--393",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Buskulic, D, Casper, D, De Bonis, I, Decamp, D, Ghez, P, Goy, C, Lees, JP, Minard, MN, Odier, P, Pietrzyk, B, Ariztizabal, F, Chmeissani, M, Crespo, JM, Efthymiopoulos, I, Fernandez, E, Fernandez-Bosman, M, Gaitan, V, Garrido, L, Martinez, M, Orteu, S, Pacheco, A, Padilla, C, Palla, F, Pascual, A, Perlas, JA, Sanchez, F, Teubert, F, Creanza, D, de Palma, M, Farilla, A, Iaselli, G, Maggi, G, Marinelli, N, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Bonvicini, G, Cattaneo, M, Comas, P, Coyle, P, Drevermann, H, Engelhardt, A, Forty, RW, Frank, M, Girone, M, Hagelberg, R, Harvey, J, Jacobsen, R, Janot, P, Jost, B, Knobloch, J, Lehraus, I, Maggi, M, Markou, C, Martin, EB, Mato, P, Meinhard, H, Minten, A, Miquel, R, Oest, T, Palazzi, P, Pater, JR, Perrodo, P, Pusztaszeri, JF, Ranjard, F, Rensing, P, Rolandi, L, Schlatter, D, Schmelling, M, Schneider, O, Tejessy, W, Tomalin, IR, Venturi, A, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadin-Otwinowska, M, Barres, A, Boyer, C, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, JC, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rossignol, JM, Saadi, F, Fearnley, T, Hansen, JB, Hansen, JD, Hansen, JR, Hansen, PH, Nilsson, BS, Kyriakis, A, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Blondel, A, Bonneaud, G, Brient, JC, Bourdon, P, Passalacqua, L, Rougé, A, Rumpf, M, Tanaka, R, Valassi, A, Verderi, M, Videau, H, Candlin, DJ, Parsons, MI, Focardi, E, Parrini, G, Corden, M, Delfino, M, Georgiopoulos, C, Jaffe, DE, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Pepe-Altarelli, M, Dorris, SJ, Halley, AW, ten Have, I, Knowles, IG, Lynch, JG, Morton, WT, O'Shea, V, Raine, C, Reeves, P, Scarr, JM, Smith, K, Smith, MG, Thompson, AS, Thompson, F, Thorn, S, Turnbull, RM, Becker, U, Braun, O, Geweniger, C, Graefe, G, Hanke, P, Hepp, V, Kluge, EE, Putzer, A, Rensch, B, Schmidt, M, Sommer, J, Stenzel, H, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, DM, Cameron, W, Colling, DJ, Dornan, PJ, Konstantinidis, N, Moneta, L, Moutoussi, A, Nash, J, San Martin, G, Sedgbeer, JK, Stacey, AM, Dissertori, G, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, CK, Brodbeck, TJ, Colrain, P, Crawford, G, Finch, AJ, Foster, F, Hughes, G, Sloan, T, Whelan, EP, Williams, MI, Galla, A, Greene, AM, Kleinknecht, K, Quast, G, Raab, J, Renk, B, Sander, HG, Wanke, R, Zeitnitz, C, Aubert, JJ, Bencheikh, AM, Benchouk, C, Bonissent, A, Bujosa, G, Calvet, D, Carr, J, Diaconu, C, Etienne, F, Thulasidas, M, Nicod, D, Payre, P, Rousseau, D, Talby, M, Abt, I, Assmann, R, Bauer, C, Blum, W, Brown, D, Dietl, H, Dydak, F, Gotzhein, C, Jakobs, K, Kroha, H, Lütjens, G, Lutz, G, Männer, W, Moser, HG, Richter, R, Rosado-Schlosser, A, Schwarz, AS, Settles, R, Seywerd, H, Stierlin, U, Denis, RS, Wolf, G, Alemany, R, Boucrot, J, Callot, O, Cordier, A, Courault, F, Davier, M, Duflot, L, Grivaz, JF, Heusse, P, Jacquet, M, Kim, DW, Le Diberder, F, Lefrançois, J, Lutz, AM, Musolino, G, Nikolic, I, Park, HJ, Park, IC, Schune, MH, Simion, S, Veillet, JJ, Videau, I, Abbaneo, D, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, MA, Ciulli, V, Dell'Orso, R, Ferrante, I, Foà, L, Forti, F, Giassi, A, Giorgi, MA, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, PS, Messineo, A, Rizzo, G, Sanguinetti, G, Sciabà, A, Spagnolo, P, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Verdini, PG, Walsh, J, Betteridge, AP, Blair, GA, Bryant, LM, Gao, Y, Green, MG, Johnson, DL, Medcalf, T, Mir, LM, Strong, JA, Bertin, V, Botterill, DR, Clifft, RW, Edgecock, TR, Haywood, S, Edwards, M, Maley, P, Norton, PR, Thompson, JC, Bloch-Devaux, B, Colas, P, Duarte, H, Emery, S, Kozanecki, W, Lançon, E, Lemaire, MC, Locci, E, Marx, B, Perez, P, Rander, J, Renardy, JF, Rosowsky, A, Roussarie, A, Schuller, JP, Schwindling, J, Si Mohand, D, Trabelsi, A, Vallage, B, Johnson, RP, Kim, HY, Litke, AM, McNeil, MA, Taylor, G, Beddall, A, Booth, CN, Boswell, R, Cartwright, S, Combley, F, Dawson, I, Koksal, A, Letho, M, Newton, WM, Rankin, C, Thompson, LF, Böhrer, A, Brandt, S, Cowan, G, Feigl, E, Grupen, C, Lutters, G, Minguet-Rodriguez, J, Rivera, F, Saraiva, P, Smolik, L, Stephan, F, Bosisio, L, Della Marina, R, Ganis, G, Giannini, G, Gobbo, B, Pitis, L, Ragusa, F, Rothberg, J, Wasserbaech, S, Armstrong, SR, Bellantoni, L, Elmer, P, Feng, Z, Ferguson, DPS, Gao, YS, González, S, Grahl, J, Harton, JL, Hayes, OJ, Hu, H, McNamara, PA, Nachtman, JM, Orejudos, W, Pan, YB, Saadi, Y, Schmitt, M, Scott, IJ, Sharma, V, Turk, JD, Walsh, AM, Weber, FV, Wu, SL, Wu, X, Yamartino, JM, Zheng, M & Zobernig, G 1995, 'Test of the flavour independence of α_s ', Physics Letters B, vol. 355, no. 1-2, pp. 381-393. https://doi.org/10.1016/0370-2693(95)00713-U

TY - JOUR

T1 - Test of the flavour independence of αs

AU - Buskulic, D.

AU - Casper, D.

AU - De Bonis, I.

AU - Decamp, D.

AU - Ghez, P.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Odier, P.

AU - Pietrzyk, B.

AU - Ariztizabal, F.

AU - Chmeissani, M.

AU - Crespo, J. M.

AU - Efthymiopoulos, I.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Martinez, M.

AU - Orteu, S.

AU - Pacheco, A.

AU - Padilla, C.

AU - Palla, F.

AU - Pascual, A.

AU - Perlas, J. A.

AU - Sanchez, F.

AU - Teubert, F.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Marinelli, N.

AU - Natali, S.

AU - Nuzzo, S.

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 - Huang, X.

AU - Lin, J.

AU - Ouyang, Q.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, R.

AU - Xue, S.

AU - Zhang, J.

AU - Zhang, L.

AU - Zhao, W.

AU - Bonvicini, G.

AU - Cattaneo, M.

AU - Comas, P.

AU - Coyle, P.

AU - Drevermann, H.

AU - Engelhardt, A.

AU - Forty, R. W.

AU - Frank, M.

AU - Girone, M.

AU - Hagelberg, R.

AU - Harvey, J.

AU - Jacobsen, R.

AU - Janot, P.

AU - Jost, B.

AU - Knobloch, J.

AU - Lehraus, I.

AU - Maggi, M.

AU - Markou, C.

AU - Martin, E. B.

AU - Mato, P.

AU - Meinhard, H.

AU - Minten, A.

AU - Miquel, R.

AU - Oest, T.

AU - Palazzi, P.

AU - Pater, J. R.

AU - Perrodo, P.

AU - Pusztaszeri, J. F.

AU - Ranjard, F.

AU - Rensing, P.

AU - Rolandi, L.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Schneider, O.

AU - Tejessy, W.

AU - Tomalin, I. R.

AU - Venturi, A.

AU - Wachsmuth, H.

AU - Wiedenmann, W.

AU - Wildish, T.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Bardadin-Otwinowska, M.

AU - Barres, A.

AU - Boyer, C.

AU - Falvard, A.

AU - Gay, P.

AU - Guicheney, C.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Monteil, S.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Podlyski, F.

AU - Proriol, J.

AU - Rossignol, J. M.

AU - Saadi, F.

AU - Fearnley, T.

AU - Hansen, J. B.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Nilsson, B. S.

AU - Kyriakis, A.

AU - Simopoulou, E.

AU - Siotis, I.

AU - Vayaki, A.

AU - Zachariadou, K.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Brient, J. C.

AU - Bourdon, P.

AU - Passalacqua, L.

AU - Rougé, A.

AU - Rumpf, M.

AU - Tanaka, R.

AU - Valassi, A.

AU - Verderi, M.

AU - Videau, H.

AU - Candlin, D. J.

AU - Parsons, M. I.

AU - Focardi, E.

AU - Parrini, G.

AU - Corden, M.

AU - Delfino, M.

AU - Georgiopoulos, C.

AU - Jaffe, D. E.

AU - Antonelli, A.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Bossi, F.

AU - Campana, P.

AU - Capon, G.

AU - Cerutti, F.

AU - Chiarella, V.

AU - Felici, G.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Pepe-Altarelli, M.

AU - Dorris, S. J.

AU - Halley, A. W.

AU - ten Have, I.

AU - Knowles, I. G.

AU - Lynch, J. G.

AU - Morton, W. T.

AU - O'Shea, V.

AU - Raine, C.

AU - Reeves, P.

AU - Scarr, J. M.

AU - Smith, K.

AU - Smith, M. G.

AU - Thompson, A. S.

AU - Thompson, F.

AU - Thorn, S.

AU - Turnbull, R. M.

AU - Becker, U.

AU - Braun, O.

AU - Geweniger, C.

AU - Graefe, G.

AU - Hanke, P.

AU - Hepp, V.

AU - Kluge, E. E.

AU - Putzer, A.

AU - Rensch, B.

AU - Schmidt, M.

AU - Sommer, J.

AU - Stenzel, H.

AU - Tittel, K.

AU - Werner, S.

AU - Wunsch, M.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Cameron, W.

AU - Colling, D. J.

AU - Dornan, P. J.

AU - Konstantinidis, N.

AU - Moneta, L.

AU - Moutoussi, A.

AU - Nash, J.

AU - San Martin, G.

AU - Sedgbeer, J. K.

AU - Stacey, A. M.

AU - Dissertori, G.

AU - Girtler, P.

AU - Kneringer, E.

AU - Kuhn, D.

AU - Rudolph, G.

AU - Bowdery, C. K.

AU - Brodbeck, T. J.

AU - Colrain, P.

AU - Crawford, G.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Sloan, T.

AU - Whelan, E. P.

AU - Williams, M. I.

AU - Galla, A.

AU - Greene, A. M.

AU - Kleinknecht, K.

AU - Quast, G.

AU - Raab, J.

AU - Renk, B.

AU - Sander, H. G.

AU - Wanke, R.

AU - Zeitnitz, C.

AU - Aubert, J. J.

AU - Bencheikh, A. M.

AU - Benchouk, C.

AU - Bonissent, A.

AU - Bujosa, G.

AU - Calvet, D.

AU - Carr, J.

AU - Diaconu, C.

AU - Etienne, F.

AU - Thulasidas, M.

AU - Nicod, D.

AU - Payre, P.

AU - Rousseau, D.

AU - Talby, M.

AU - Abt, I.

AU - Assmann, R.

AU - Bauer, C.

AU - Blum, W.

AU - Brown, D.

AU - Dietl, H.

AU - Dydak, F.

AU - Gotzhein, C.

AU - Jakobs, K.

AU - Kroha, H.

AU - Lütjens, G.

AU - Lutz, G.

AU - Männer, W.

AU - Moser, H. G.

AU - Richter, R.

AU - Rosado-Schlosser, A.

AU - Schwarz, A. S.

AU - Settles, R.

AU - Seywerd, H.

AU - Stierlin, U.

AU - Denis, R. St

AU - Wolf, G.

AU - Alemany, R.

AU - Boucrot, J.

AU - Callot, O.

AU - Cordier, A.

AU - Courault, F.

AU - Davier, M.

AU - Duflot, L.

AU - Grivaz, J. F.

AU - Heusse, Ph

AU - Jacquet, M.

AU - Kim, D. W.

AU - Le Diberder, F.

AU - Lefrançois, J.

AU - Lutz, A. M.

AU - Musolino, G.

AU - Nikolic, I.

AU - Park, H. J.

AU - Park, I. C.

AU - Schune, M. H.

AU - Simion, S.

AU - Veillet, J. J.

AU - Videau, I.

AU - Abbaneo, D.

AU - Azzurri, P.

AU - Bagliesi, G.

AU - Batignani, G.

AU - Bettarini, S.

AU - Bozzi, C.

AU - Calderini, G.

AU - Carpinelli, M.

AU - Ciocci, M. A.

AU - Ciulli, V.

AU - Dell'Orso, R.

AU - Ferrante, I.

AU - Foà, L.

AU - Forti, F.

AU - Giassi, A.

AU - Giorgi, M. A.

AU - Gregorio, A.

AU - Ligabue, F.

AU - Lusiani, A.

AU - Marrocchesi, P. S.

AU - Messineo, A.

AU - Rizzo, G.

AU - Sanguinetti, G.

AU - Sciabà, A.

AU - Spagnolo, P.

AU - Steinberger, J.

AU - Tenchini, R.

AU - Tonelli, G.

AU - Triggiani, G.

AU - Vannini, C.

AU - Verdini, P. G.

AU - Walsh, J.

AU - Betteridge, A. P.

AU - Blair, G. A.

AU - Bryant, L. M.

AU - Gao, Y.

AU - Green, M. G.

AU - Johnson, D. L.

AU - Medcalf, T.

AU - Mir, Ll M.

AU - Strong, J. A.

AU - Bertin, V.

AU - Botterill, D. R.

AU - Clifft, R. W.

AU - Edgecock, T. R.

AU - Haywood, S.

AU - Edwards, M.

AU - Maley, P.

AU - Norton, P. R.

AU - Thompson, J. C.

AU - Bloch-Devaux, B.

AU - Colas, P.

AU - Duarte, H.

AU - Emery, S.

AU - Kozanecki, W.

AU - Lançon, E.

AU - Lemaire, M. C.

AU - Locci, E.

AU - Marx, B.

AU - Perez, P.

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 - Trabelsi, A.

AU - Vallage, B.

AU - Johnson, R. P.

AU - Kim, H. Y.

AU - Litke, A. M.

AU - McNeil, M. A.

AU - Taylor, G.

AU - Beddall, A.

AU - Booth, C. N.

AU - Boswell, R.

AU - Cartwright, S.

AU - Combley, F.

AU - Dawson, I.

AU - Koksal, A.

AU - Letho, M.

AU - Newton, W. M.

AU - Rankin, C.

AU - Thompson, L. F.

AU - Böhrer, A.

AU - Brandt, S.

AU - Cowan, G.

AU - Feigl, E.

AU - Grupen, C.

AU - Lutters, G.

AU - Minguet-Rodriguez, J.

AU - Rivera, F.

AU - Saraiva, P.

AU - Smolik, L.

AU - Stephan, F.

AU - Bosisio, L.

AU - Della Marina, R.

AU - Ganis, G.

AU - Giannini, G.

AU - Gobbo, B.

AU - Pitis, L.

AU - Ragusa, F.

AU - Rothberg, J.

AU - Wasserbaech, S.

AU - Armstrong, S. R.

AU - Bellantoni, L.

AU - Elmer, P.

AU - Feng, Z.

AU - Ferguson, D. P.S.

AU - Gao, Y. S.

AU - González, S.

AU - Grahl, J.

AU - Harton, J. L.

AU - Hayes, O. J.

AU - Hu, H.

AU - McNamara, P. A.

AU - Nachtman, J. M.

AU - Orejudos, W.

AU - Pan, Y. B.

AU - Saadi, Y.

AU - Schmitt, M.

AU - Scott, I. J.

AU - Sharma, V.

AU - Turk, J. D.

AU - Walsh, A. M.

AU - Weber, F. V.

AU - Wu, Sau Lan

AU - Wu, X.

AU - Yamartino, J. M.

AU - Zheng, M.

AU - Zobernig, G.

N1 - Funding Information: Council. ‘t Supportedb y the US Departmento f Energy, contract DE-AC02-76ER0088 1. ‘* On leave from Universitat Autonoma de Barcelona, Barcelona, Spain. l3 Supportedb y the US Departmento f Energy, contract DE-FGOS-92ER40742. t4 Supportedb y the US Departmentof Energy, contract DEFCOS-85ER250000. l5 Permanenta ddress:U niversitat de Barcelona, 08208 Barcelona, Spain. l6 Supported by the Bundesministerium fti Forschung und Tech- Funding Information: nologie, Germany. l7 Supported by the Direction des Sciences de la Matiere, C.E.A. l8 Supported by Fonds zur Fiirderung der wissenschaftlichen Forschung, Austria. I9 Permanent address: Kangnung National University, Kangnung, Korea. *ON ow at Dipartimento di Fisica, Universim di Milano, Milano, Italy. 2* Also at CERN, 1211 Geneva 23, Switzerland. 22S upported by the US Departmento f Energy, grant DE-FGO3-92ER40689. 23N ow at DESY, Hamburg, Germany. z4 Now at Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. 25P artially supported by Colciencias, Colombia. 26A lso at Istituto di Matematica e Fisica, Universim di Sassari, sassari, Italy. 27N ow at University of Athens, 157-71 Athens, Greece. Funding Information: ’ Now at CERN, 1211 Geneva 23, Switzerland. 2 Deceased. 3 Now at Dipartimento di Fisica, Universim di Lecce, 73100 Lecce, Italy. 4 Also Istituto di Fisica Generale, Universim di Torino, Torino, Italy. ‘Also Istimto di Cosmo-Geofisica de1 C.N.R., Torino, Italy. 6 Now at TSM Business School, Enschede, The Netherlands. 7 Supported by CICYT, Spain. 8 Supported by the National Science Foundation of China. g Supported by the Danish Natural Science Research Council. lo Supportedb y the UK Particle Physics and Astronomy Research

PY - 1995/7/27

Y1 - 1995/7/27

N2 - Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios rb = αs b αs udsc and ruds = αs uds αs cb have been measured in order to test the flavour independence of the strong coupling constant αs. The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are rb = 1.002±0.023 and ruds = 0.971 ± 0.023.

AB - Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios rb = αs b αs udsc and ruds = αs uds αs cb have been measured in order to test the flavour independence of the strong coupling constant αs. The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are rb = 1.002±0.023 and ruds = 0.971 ± 0.023.

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U2 - 10.1016/0370-2693(95)00713-U

DO - 10.1016/0370-2693(95)00713-U

M3 - Article

AN - SCOPUS:0000039108

SN - 0370-2693

VL - 355

SP - 381

EP - 393

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Test of the flavour independence of α_s

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