Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Determinations of alpha_s from hadronic event shapes and tests of analytic hadronization models using e+e- annihilation data

Jul 16, 2009, 9:00 AM
Exhibition room A (Kraków, Poland)

Exhibition room A

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
QCD at Colliders V. QCD at Colliders


Dr Christoph Pahl (MPI for Physics Munich)


QCD predictions of hadronic event shapes, in complete 3rd order (NNLO) and in resummed 3rd order (NNLO & NLLA) perturbation theory, are applied to e+e- annihilation data in the c.m. energy range of 14 to 200 GeV, in order to precisely determine the running coupling alphas(Q). Moments of event shape distributions and respective predictions in NLO QCD are used to test different regions of phase space and various analytic models of hadronisation.

Primary authors

Dr Christoph Pahl (MPI for Physics Munich) Jochen Schieck Schieck (MPI for Physics Munich) Otmar Biebel (LMU Munich) Siegfried Bethke (MPI for Physics Munich) Stefan Kluth (MPI for Physics Munich)

Presentation materials