POLARIZED NUCLEAR-MATTER USING A MODIFIED DENSITY-DEPENDENT SEYLER-BLANCHARD POTENTIAL

The binding energy of polarized nuclear matter with excess of neutrons , spin-up neutrons, and spin-up protons contains three symmetry energi es: the spin symmetry energy, the isospin symmetry energy, and the spi n-isospin symmetry energy. The potential used here for polarized nucle ar matter is a modified density-dependent Seyler-Blanchard potential w ith an explicit dependence on the density of protons with spin-up and -down rho(p up arrow) and rho(p down arrow), also on the neutron densi ty with spin-up and -down rho(n up arrow) and rho(n down arrow). It is found that the binding energy per particle, pressure, velocity of sou nd, and entropy agree very well with previous theoretical estimates, [ S0556-2813(98)04103-X].