par Abdallah, Jalal Mohamad J.;Alderweireld, Thomas;Bertrand, Daniel 
;D'Hondt, Jorgen;De Clercq, Catherine;Lemonne, Jacques ;Van Lysebetten, Ann;Van Remortel, Nick;Wickens, John H. ; [et al.]
Référence European Physical Journal C. Particles and Fields, 37, 1, page (1-23)
Publication Publié, 2004
;D'Hondt, Jorgen;De Clercq, Catherine;Lemonne, Jacques ;Van Lysebetten, Ann;Van Remortel, Nick;Wickens, John H. ; [et al.]Référence European Physical Journal C. Particles and Fields, 37, 1, page (1-23)
Publication Publié, 2004
Article révisé par les pairs
| Résumé : | Hadronic event shape distributions are determined from data in e +e- collisions between 183 and 207 GeV. From these the strong coupling αs is extracted in O(αs 2), NLLA and matched O(αs2)+NLLA theory. Hadronisation corrections evaluated with fragmentation model generators as well as an analytical power ansatz are applied. Comparing these measurements to those obtained at and around Mz allows a combined measurement of αs from all DELPHI data and a test of the energy dependence of the strong coupling. © Springer-Verlag / Società Italiana di Fisica 2004. |
