Self-Energy of the delta -Isobar in Nuclear Matter for the Paris and the Green-Niskanen-Sainio Potentials

摘要

A coupled channel calculation, with the compensated Paris potential and the isobar transition potential due to Green, Niskanen and Sainio, yields the nucleon and isobar self-energies in nuclear matter. Unlike the Reid soft core, the Paris potential is found to bind the isobar at small momentum by a potential of the order of 10 MeV. The change in the binding energy and the wound integral in nuclear matter, due to the explicit treatment of isobar degrees of freedom, is small. 22 refs, 1 fig, 6 tabs. (Atomindex citation 17:064168)