Comparison of Next-to-Leading Order Calculations for Jet Cross Sections in Deep-Inelastic Scattering

Abstract

We compare different next-to-leading order calculations of jet cross sections in deep-inelastic scattering as implemented in the programs DISASTER++, DISENT, JETVIP and MEPJET. In all phase space regions under study DISENT and DISASTER++ agree better than 2%. MEPJET shows systematic deviations of being typically 5-8% lower than the other programs. The JETVIP results show a significant dependence on the phase space slicing parameter $y_{\mathrm{cut}}$. In the cases where the $y_{\mathrm{cut}}$ dependence within $10^{-4}\le y_{\mathrm{cut}}\le 10^{-3}$ is smaller than 3% the JETVIP results are often comparable with the DISENT and DISASTER++ results.

Comments: 9 pages, to appear in: Proceedings of the Workshop on Monte Carlo Generators for HERA Physics