Measurement of event shapes in deep inelastic scattering at HERA
Journal
European Physical Journal C
Journal Volume
27
Journal Issue
4
Pages
531-545
Date Issued
2003
Author(s)
Chekanov, S. et al. (ZEUS Collaboration)
Abstract
Inclusive event-shape variables have been measured in the current region of the Breit frame for neutral current deep inelastic ep scattering using an integrated luminosity of 45.0 pb-1 collected with the ZEUS detector at HERA. The variables studied included thrust, jet broadening and invariant jet mass. The kinematic range covered was 10 < Q2 < 20480 GeV2 and 6 × 10-4 < x < 0.6, where Q2 is the virtuality of the exchanged boson and x is the Bjorken variable. The Q dependence of the shape variables has been used in conjunction with NLO perturbative calculations and the Dokshitzer-Webber non-perturbative corrections ('power corrections') to investigate the validity of this approach.
Type
journal article