Correlations Between Potentials and Observables in the NN Interaction

摘要

We study the effects of the components of the soft-core and velocity-dependent Paris Nucleon-Nucleon potential on the scattering observables for laboratory energies, Tsub(L), between 10 and 350 MeV. The knowledge of these correlations is useful to give constraints on components of the nucleon-nucleon force. The velocity dependent component, attractive at low energy and repulsive at high energy, plays a role at all energies. The polarisation P, the depolarisation D and the parameters Dsub(t), A, R, Csub(KP) and Csub(NN) are good tests for the tensor, spin-orbit and, to a smaller extent, quadratic spin-orbit forces. The isovector tensor force contribution is important at low energy and that of the isovector spin-orbit at high energy. The isoscalar tensor force effect is large at all energies and that of the isoscalar spin-orbit force rather small. The potential without quadratic spin-orbit term reproduces well the experimental data for Tsub(L) < 150 MeV. (Atomindex citation 12:586969)