Extending pairing energy density functional using pairing rotational moments of inertia
arXiv:1706.06547 · doi:10.1088/1361-6471/aa9f8b
Abstract
The pairing energy density functionals (EDFs) that include the spatial derivative and kinetic terms of the pair densities are discussed. The coupling constants of the pairing EDF are adjusted to reproduce the experimental pairing rotational moment of inertia, and the pair-density derivative terms are shown to systematically improve the values of the pairing rotational moments of inertia in Sn and Pb isotopes. It is pointed out that the conventional average pairing gaps overestimate the experimental odd-even mass staggering in the presence of the pair-density derivative terms.
19 pages, 7 figures, submitted to J. Phys. G
References in corpus (6)
- Axially deformed solution of the Skyrme-Hartree-Fock-Bogolyubov equations using the transformed harmonic oscillator basis (II) HFBTHO v2.00d: a new version of the program
- Towards the global description of nuclear charge radii: exploring the Fayans energy density functional
- Finite amplitude method for the quasi-particle-random-phase approximation
- BCS-BEC crossover of neutron pairs in symmetric and asymmetric nuclear matter
- Effective pairing interactions with isospin density dependence
- Error Analysis in Nuclear Density Functional Theory