Odd-even mass difference and isospin dependent pairing interaction

Details Odd-even mass difference and isospin dependent pairing interaction Odd-even mass difference and isospin dependent pairing interaction

2009-06-15

arxiv.org/abs/0906.2594v1

Phys.Rev.C80:027303,2009

Physics

Nuclear Physics

Nuclear Theory

4 pages,3 figures, 1 able

Scientific paper

10.1103/PhysRevC.80.027303

The neutron and proton odd-even mass differences are studied with Hartree-Fock+BCS (HFBCS) calculations with Skyrme interactions and an isospin dependent contact pairing interaction, which is recently derived from a microscopic nucleon-nucleon interaction. To this end, we perform HFBCS calculations for even and odd semi-magic Tin and Lead isotopes together with even and odd Z isotones with $N$= 50 and 82. The filling approximation is applied to the last unoccupied particle in odd nuclei. Comparisons with the experimental data show a clear manifestation of the isospin dependent pairing correlations in both proton and neutron pairing gaps.

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