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

作者：Bertulani C A^*; Liu Hongliang; Sagawa H

来源：Physical Review C, 2012, 85(1): 014321.

DOI：10.1103/PhysRevC.85.014321

Neutron and proton odd-even mass differences are systematically studied with Hartree-Fock (HF) + BCS 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 the mass table. By using the optimal parameter sets for proton and neutrons, we perform global (HF) + BCS 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 the mass table. By using the optimal parameter sets for proton and neutrons, we perform global HF + BCS calculations of nuclei and compare them with experimental data. The importance of the isospin dependence of the pairing interaction is singled out for odd-even mass differences in medium and heavy isotopes. Proton and neutron radii are studied systematically using the same model.

• 出版日期2012-1-24