MASS NUMBER DEPENDENCE OF THE SKYRME-FORCE-INDUCED NUCLEAR SYMMETRY ENERGY

Abstract

The global mass dependence of the nuclear symmetry energy asym(A) and its two basic ingredients due to the mean-level spacing ε(A) and effective strength of the isovector mean-potential κ(A) is studied within the Skyrme-Hartree-Fock model. In particular, our study determines the ratio of the surface-to-volume contributions to asym(A) to be rS/V~1.6 and reveals that after removing momentum-dependent effects by rescaling ε and κ with isoscalar and isovector effective masses, respectively, one obtains ε⋆ ≈ κ⋆.