  The structure and density dependence of the pairing gap in infinite matter is
relevant for astrophysical phenomena and provides a starting point for the
discussion of pairing properties in nuclear structure. Short-range correlations
can significantly deplete the available single-particle strength around the
Fermi surface and thus provide a reduction mechanism of the pairing gap. Here,
we study this effect in the singlet and triplet channels of both neutron matter
and symmetric nuclear matter. Our calculations use phase-shift equivalent
interactions and chiral two-body and three-body interactions as a starting
point. We find an unambiguous reduction of the gap in all channels with very
small dependence on the NN force in the singlet neutron matter and the triplet
nuclear matter channel. In the latter channel, short range correlations alone
provide a 50% reduction of the pairing gap.
