par Abreu, Pedro;Bertrand, Daniel
;Braibant, Sylvie J.S.J.
;Bricman, Charles
;Cao, Futian;Daubie, Evelyne;De Boeck, Hugo;De Clercq, Catherine;Grard, Fernand
;Herquet, Philippe
;Kesteman, José;Lemonne, Jacques
;Pingot, Omer;Stichelbaut, Frédéric T.
;Tavernier, S.
;Vander Velde, Catherine
;Van Dominck, W.K.;Verbeure, F;Wickens, John H.
; [et al.]
Référence Zeitschrift für Physik. C, Particles and fields, 54, 1, page (55-73)
Publication Publié, 1992-03










Référence Zeitschrift für Physik. C, Particles and fields, 54, 1, page (55-73)
Publication Publié, 1992-03
Article révisé par les pairs
Résumé : | Distributions of event shape variables obtained from 120600 hadronic Z decays measured with the DELPHI detector are compared to the predictions of QCD based event generators. Values of the strong coupling constant αs are derived as a function of the renormalization scale from a quantitative analysis of eight hadronic distributions. The final result, αs(MZ), is based on second order perturbation theory and uses two hadronization corrections, one computed with a parton shower model and the other with a QCD matrix element model. © 1992 Springer-Verlag. |