ee4fγ—A program for e+e-→4f,4f γ with nonzero fermion masses. Nature of problem: Description of all e+e- -> 4 fermions and corresponding bremsstrahlung reactions that are possible in the Standard Model (SM) to lowest order and with nonzero fermion masses at center of mass energies typical for next generation linear colliders. Such reactions are relevant, typically, for W-pair or intermediate mass Higgs boson production and decay. Solution method: Matrix elements are calculated with the helicity amplitude method. The phase space integration is performed numerically utilizing a multi-channel Monte Carlo method.

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  1. Karol Kolodziej: carlomat, A program for automatic computation of lowest order cross sections (2009) arXiv