Corresponding authors: P.J. Bussey, A.T. Doyle, G.J. McCance, I.O. Skillicorn
Inclusive event-shape variables have been measured in the current region of the Breit frame for neutral current deep inelastic e-p 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 x 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.
Paper available in the following formats: