Nuclear matter equation of state and e???-meson parameters

摘要

We try to determine phenomenologically the extent of in-medium modification of e???-meson parameters so that the saturation observables of the nuclear matter equation of state (EOS) are reproduced. To calculate the EOS we have used Bruecknera€“Bethea€“Goldstone formalism with Bonn potential as two-body interaction. We find that it is possible to understand all the saturation observables, namely, saturation density, energy per nucleon and incompressibility, by incorporating in-medium modification of e???-mesona€“nucleon coupling constant and e???-meson mass by a few per cent.