These processes represent the production of a W+ from a charm and anti-strange quark at LO. The W+ boson decays into a neutrino and a positron.
The NLO corrections to this LO process include a contribution of the form, gs → W+c. For process 361 this contribution is calculated in the approximation mc = 0 at NLO. In order to perform the NLO calculation for a non-zero value of mc, one must instead sum the results of processes 362 and 363 for part=tota.
nplotter_W_only.f is the default plotting routine.