Investigation of Power Corrections to Event Shape Variables measured in Deep-Inelastic Scattering
High Energy Physics - Experiment
2008-11-26 v1
Abstract
Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential two-jet rate. The data cover a large range of the four-momentum transfer Q, which is considered to be the relevant energy scale, between 7 GeV and 100 GeV. The Q dependences of the mean values are compared with second order calculations of perturbative QCD applying power law corrections proportional to 1/Q^p to account for hadronization effects. The concept of power corrections is investigated by fitting simultaneously a non-perturbative parameter alpha_p and the strong coupling constant alpha_s.
Cite
@article{arxiv.hep-ex/9912052,
title = {Investigation of Power Corrections to Event Shape Variables measured in Deep-Inelastic Scattering},
author = {H1 Collaboration and C. Adloff},
journal= {arXiv preprint arXiv:hep-ex/9912052},
year = {2008}
}
Comments
27 pages, 9 figures, 3 tables