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Nucleon-nucleon interaction with consistently soft form factors for one and two pion exchange

1994; American Institute of Physics; Volume: 49; Issue: 5 Linguagem: Inglês

10.1103/physrevc.49.2331

1538-4497

J. Haidenbauer, K. Holinde, A. W. Thomas,

High-Energy Particle Collisions Research

It has recently proven possible to construct an acceptable one-boson-exchange potential in which the NN\ensuremath{\pi} form factor is quite soft. In order to do so it was necessary to add an effective \ensuremath{\pi}' meson which increased the short-range tensor force. It is much less obvious that one can use such soft form factors if the two-pion-exchange diagrams are calculated explicitly rather than being parametrized as scalar meson exchange. Here we show that it is indeed possible to construct a model which describes nucleon-nucleon data with comparable quality as the original full Bonn potential, but in which the two pion exchange is included explicitly with consistently soft NN\ensuremath{\pi} and \ensuremath{\Delta}N\ensuremath{\pi} vertices.