For interactions off of deuterium, the Charge Current (CC) double
differential cross sections are generated using the tabulated data of
K. Kubodera. Also see K. Kubodera and S. Nozawa, ``International Journal of
Modern Physics" E3, 101-148. Both and
energy
distributions can be generated. For the
interactions, the
User can specify the production of the positron and the two neutrons
created in the MCPI bank (the positron must come first). See the routine EN_CC.
For interactions of off of hydrogen, the Standard
Model calculation is used. Both the resultant neutron and positron can
be specified in the MCPI bank, as well as the neutrino type. In this case,
the neutron must come first. See the routine EN_CC_H.