We present two new nucleon-nucleon (NN) potentials: a model that is a conventional NN potential and a model with explicit degrees of freedom. The model has 14 operator components describing NN channels, while the model has 14 additional operators, including 12 transition operators for all possible and couplings and two central operators for and channels; the latter are constrained so that the model has no additional free parameters for data fitting. The two models give excellent and almost identical fits to deuteron properties and np scattering below 330 MeV. The and forms are convenient for nuclear structure calculations; when many-body cluster contributions are evaluated the model will automatically include much of the effect attributed to many-body forces in conventional models, while the model will provide a standard of comparison.
- Received 15 April 1983
- Published in the issue dated April 1984
© 1984 The American Physical Society