DISJET 1.2: A Monte Carlo Program for Jet Cross Section Calculations in Deep Inelastic Scattering

Abstract

We present a new parton level Monte Carlo program for the calculation of jet cross sections in Deep Inelastic Scattering based on Born and next-to-leading order matrix elements. Using a class of invariant jet definition schemes, the program allows for the calculation of differential distributions of jet cross sections in the basic kinematical variables (like s, x, y, W^2, Q^2...) as well as for total jet cross sections. Various kinematical cuts can be chosen from an input file.

An error in the finite part of the O(alphas^2) virtual corrections to the quark initiated (2+1)-jet subprocess is corrected. An error in the labelling of the O(alphas^2) (3+1)-jet subprocesses is corrected. An additional kinematical cut has been implemented