G. Holzwarth et R. Machleidt, SKYRME-MODEL PI-NN FORM-FACTOR AND NUCLEON-NUCLEON INTERACTION, Physical review. C. Nuclear physics, 55(3), 1997, pp. 1088-1095
We apply the strong pi NN form factor, which emerges from the Skyrme m
odel, in the two-nucleon system using a one-boson-exchange (OBE) model
for the nucleon-nucleon (NN) interaction. Deuteron properties and pha
se parameters of NN scattering are reproduced well. In contrast to the
form factor of monopole shape that is traditionally used in OBE model
s, the Skyrme form factor leaves low-momentum transfers essentially un
affected while it suppresses the high-momentum region strongly. It tur
ns out that this behavior is very appropriate for models of the NN int
eraction and makes it possible to use a soft pion form factor in the N
N system. As a consequence, the pi N and the NN systems can be describ
ed using the same pi NN form factor, which is impossible with the mono
pole.