ee4fγ—A program for e+e−→4f,4fγ with nonzero fermion masses Original Research Article

A computer program ee4fγ for calculating cross-sections of any four fermion final state of e+e−-annihilation at high energy and the corresponding bremsstrahlung reaction that is possible in the framework of the Standard Model is presented. As the fermion masses are arbitrary, the cross-sections for channels that do not contain e+ and/or e− in the final state can be computed without any collinear cut, the on-shell top quark production can be studied and the Higgs boson exchange can be incorporated in a consistent way. The program can be used as a Monte Carlo generator of unweighted events as well.