These processes represent the production of a Z boson and 3 jets, including also the effect of a virtual photon when the Z decays to electrons (nproc=45), but not when it decays to neutrinos. The Z∕γ* decays to an e+e- pair (nproc=45) or into three species of neutrino (nproc=47). The calculation may be performed at LO only.
When removebr is true, the Z boson does not decay.
nplotter_Zjets.f is the default plotting routine.