Properties of the nonlocal NN interactions required for the correct triton binding energy -: art. no. 054004

In order to investigate their effect on the triton binding energy, a set of nonlocal S-1(0) and (SD1)-S-3 nucleon-nucleon (NN) interactions is constructed in coordinate space. The properties which make possible the reproduction of the triton binding energy without a three-nucleon force are studied. For all of the investigated local and nonlocal interactions the dominant contribution to the triton binding energy comes from the pole terms of the S-1(0) and (SD1)-S-3 states; consequently the singlet virtual bound state and deuteron properties have a dominant role. Low deuteron D-state and substantial S-state short-distance probabilities, which could not be produced by local NN interactions, are necessary requirements for the correct binding energy.