SKYRME-MODEL PI-NN FORM-FACTOR AND NUCLEON-NUCLEON INTERACTION

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.