Chiral symmetry and nuclear matter equation of state

Abstract

We investigate the effect on the nuclear matter equation of state (EOS) due to modification of meson and nucleon parameters in nuclear medium as a consequence of partial restoration of chiral symmetry. To get the EOS, we have used Brueckner-Bethe-Golstone formalism with Bonnpotential as two-body interaction and QCD sum rule and Brown-Rho scaling prescriptions for modification of hadron parameters. We find that EOS is very much sensitive to the meson parameters. We can fit, with two body interaction alone, both the saturation density and the binding energy per nucleon.