A study of scaling violations in fragmentation functions performed by the ALEPH collaboration at LEP is presented. Data samples enriched in uds, c, b and gluon jets, respectively, together with measurements of the longitudinal and transverse inclusive cross sections are used to extract the fragmentation function for the gluon and for each flavour. The measurements are compared to data from experiments at energies between 22 GeV and 91 GeV and scaling violations consistent with QCD predictions are observed. From this, a measurement of the strong coupling constant alfa_s(M_Z)=0.126 +/- 0.009is obtained.
Autori interni: | |
Autori: | D Buskulic; D Casper; I De Bonis; D Decamp; P Ghez; C Goy; J.-P Lees; A Lucotte; 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; A Colaleo; D Creanza; M de Palma; A Farilla; G Gelao; M Girone; G Iaselli; G Maggi; M 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; R Hagelberg; J Harvey; R Jacobsen; P Janot; B Jost; J Knobloch; I Lehraus; C Markou; E.B Martin; P Mato; H Meinhard; A Minten; R Miquel; T Oest; P Palazzi; J.R Pater; 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; 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 Thomson; 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; G Ganis; C Gotzhein; K Jakobs; H Kroha; G Lütjens; G Lutz; W Männer; H.-G Moser; R Richter; A Rosado-Schlosser; S Schael; 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; R Fantechi; 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; F Cerutti; Y Gao; M.G Green; D.L Johnson; T Medcalf; Ll.M Mir; P Perrodo; 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; M Apollonio; L Bosisio; R Della Marina; G Giannini; B Gobbo; 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; Sau Lan Wu; X Wu; J.M Yamartino; M Zheng; G Zobernig |
Titolo: | Measurement of alfa_s from scaling violations in fragmentation functions in e+e− annihilation |
Anno del prodotto: | 1995 |
Digital Object Identifier (DOI): | 10.1016/0370-2693(95)00917-A |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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