Modification of mass formula by considering isospin effects

Details Modification of mass formula by considering isospin effects Modification of mass formula by considering isospin effects

2010-01-10

arxiv.org/abs/1001.1493v3

Phys.Rev.C81:044322,2010

Physics

Nuclear Physics

Nuclear Theory

7 figures, 3 tables; Version to appear in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.81.044322

We propose a semi-empirical nuclear mass formula based on the macroscopic-microscopic method in which the isospin and mass dependence of model parameters are investigated with the Skyrme energy density functional. The number of model parameters is considerably reduced compared with the finite range droplet model. The rms deviation with respect to 2149 measured nuclear masses is reduced by 21%, falls to 0.516 MeV. The new magic number N=16 in light neutron-rich nuclei and the shape coexistence phenomena for some nuclei have been examined with the model. The shell corrections of super-heavy nuclei are also predicted.

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