Determination Of Alpha-S From Hadronic Event Shapes Measured On The Z0 Resonance
O. Adrian, M. Aguilar-Benitez,S. Ahlen,J. Alcaraz, A. Aloisio,G. Alverson,M.G. Alviggi,G. Ambrosi,Q. An,H. Anderhub,A.L. Anderson,V.P. Andreev,T. Angelov,L. Antonov,D. Antreasyan, P. Arce, A. Arefiev,A. Atamanchuk,T. Azemoon, T. Aziz,P.V.K.S. Baba, P. Bagnaia,J.A. Bakken,L. Baksay, R.C. Ball,S. Banerjee,J. Bao,R. Barillère, L. Barone,R. Battiston, A. Bay, F. Becattini,U. Becker,F. Behner,J. Behrens,S. Beingessner,Gy.L. Bencze,J. Berdugo,P. Berges,B. Bertucci,B.L. Betev, M. Biasini,A. Biland, G.M. Bilei,R. Bizzarri,J.J. Blaising,P. Blömeke,B. Blumenfeld, G.J. Bobbink,M. Bocciolini,R. Bock,A. Böhm,B. Borgia, D. Bourilkov,M. Bourquin, D. Boutigny,B. Bouwens,E. Brambilla, J.G. Branson,I.C. Brock,M. Brooks,C. Buisson,A. Bujak,J.D. Burger,W.J. Burger,J.P. Burq,J. Busenitz,X.D. Cai,M. Capell,M. Caria,F. Carminati,A.M. Cartacci, M. Cerrada,F. Cesaroni,Y.H. Chang,U.K. Chaturvedi,M. Chemarin,A. Chen,C. Chen,G.M. Chen,H.F. Chen,H.S. Chen,J. Chen,M. Chen,M.L. Chen,W.Y. Chen, G. Chiefari,C.Y. 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PHYSICS LETTERS B（1992）
引用 100|浏览126
摘要
We present a study of the global event shape variables thrust and heavy jet mass, of energy-energy correlations and of jet multiplicities based on 250 000 hadronic Z0 decays. The data are compared to new QCD calculations including resummation of leading and next-to-leading logarithms to all orders. We determine the strong coupling constant alpha(s) (91.2 GeV) = 0.125 +/- 0.003 (exp) +/- 0.008 (theor). The first error is the experimental uncertainty. The second error is due to hadronization uncertainties and approximations in the calculations of the higher order corrections.
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