Global investigation of odd-even mass differences and radii with isospin dependent pairing interactions

Details Global investigation of odd-even mass differences and radii with isospin dependent pairing interactions Global investigation of odd-even mass differences and radii with isospin dependent pairing interactions

2011-11-16

arxiv.org/abs/1111.3938v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:0906.2594

Scientific paper

The neutron and proton odd-even mass differences are systematically studied with Hartree-Fock+BCS (HFBCS) calculations with Skyrme interactions and an isospin dependent contact pairing interaction. The strength of pairing interactions is determined to reproduce empirical odd-even mass differences in a wide region of mass table. By using the optimal parameter, we perform global HF+BCS calculations of nuclei and compare with experimental data. The importance of isospin dependence of the pairing interaction is singled out for odd-even mass differences in medium and heavy isotopes. The proton and neutron radii are studied systematically by using the same model.

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