QGSC and QGSC_EMV (see and recommending physics lists)
As QGSP except applying CHIPS modeling for the nuclear de-excitation. In
comparison to thin target experiments, this improves simulation of the nuclear
de-excitation part of the interaction, resulting in slightly increased
production of relatively low energy secondary protons (and neutrons).
QGSC_EMV is identical to QGSC, but parameters of electromagnetic processes
tuned to yield better cpu performance with only slightly less precision.
