Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1999-12-22
Eur.Phys.J.C14:255-269,2000; Erratum-ibid.C18:417-419,2000
Physics
High Energy Physics
High Energy Physics - Experiment
27 pages, 9 figures, 3 tables
Scientific paper
10.1007/s100520000344
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.
Adloff Catherine
H1 Collaboration
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