Mass and isospin dependence of symmetry energy coefficients of finite nuclei

Abstract

Mass and isospin dependence of symmetry energy coefficients $a_{sym}$ of finite nuclei is investigated with the measured nuclear masses incorporating the liquid drop mass formula. The enhanced $a_{sym}$ for nearly symmetric nuclei are observed. To describe the mass and isospin dependence of $a_{sym}$, a modified formula based on the conventional surface-symmetry term is proposed and the corresponding rms deviation of nuclear masses is checked.

3 figures, 1 table; to appear in Phys. Rev. C

References in corpus (2)

• Symmetry Energy I: Semi-Infinite Matter
• Excitation energy dependence of symmetry energy of finite nuclei

Cited by in corpus (8)

• Further improvements on a global nuclear mass model
• Surface Symmetry Energy of Nuclear Energy Density Functionals
• Nuclear symmetry energy at subnormal densities from measured nuclear masses
• Density dependence of nuclear symmetry energy constrained by mean-field calculations
• Nuclear symmetry energy from the Fermi-energy difference in nuclei
• Origin of symmetry energy in finite nuclei and density dependence of nuclear matter symmetry energy from measured alpha-decay energies
• Extraction of the symmetry energy coefficients from the masses differences of isobaric nuclei
• An improved nuclear mass formula: WS3