A B SANTRA

Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India

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 Bonn-B potential as two-body interaction and QCD sum rule and Brown--Rho scaling prescriptions for modi- fication 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.

Keywords:  Equation of state; chiral symmetry.

Pacs Nos.  21.65.+f; 12.38.Aw