Mass number and isospin dependence of symmetry energy coefficients for finite nuclei

Details Mass number and isospin dependence of symmetry energy coefficients for finite nuclei Mass number and isospin dependence of symmetry energy coefficients for finite nuclei

2009-11-06

arxiv.org/abs/0911.1204v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 2 figures

Scientific paper

Mass number and isospin dependence of symmetry energy coefficients for isobaric chains with A = 8, 12, 16, 20, ..., 100 have been globally studied in relativistic mean-field (RMF) theory with the PK1 effective interaction and compared with the corresponding pseudo data from the experimental binding energy and semi-empirical mass formula. The mass dependence of symmetry energy coefficient both from the RMF calculation and pseudo data for different isospin values has been fitted with and without the surface term $b_v/A^{4/3}$. The results confirm that only if with the surface term in the fitting of symmetry energy coefficient in finite nuclei can one get the consistent value as that in infinite nuclear matter.

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