Spectroscopic properties of nuclear Skyrme energy density functionals

Abstract

We address the question of how to improve the agreement between theoretical nuclear single-particle energies (SPEs) and experiment. Empirically, in doubly magic nuclei, the SPEs can be deduced from spectroscopic properties of odd nuclei that have one more, or one less neutron or proton. Theoretically, bare SPEs, before being confronted with experiment, must be corrected for the effects of the particle-vibration-coupling (PVC). In the present work, we determine the PVC corrections in a fully self-consistent way. Then, we adjust the SPEs, with PVC corrections included, to empirical data. In this way, the agreement with experiment, on average, improves; nevertheless, large discrepancies still remain. We conclude that the main source of disagreement is still in the underlying mean fields, and not in including or neglecting the PVC corrections.

5 pages, 5 figures, extended supplemental material

References in corpus (4)

• A new Skyrme interaction with improved spin-isospin properties
• Dependence of single-particle energies on coupling constants of the nuclear energy density functional
• Error analysis of nuclear mass fits
• Continuum particle-vibration coupling method in coordinate-space representation for finite nuclei

Cited by in corpus (6)

• Shape transitions in odd-mass $\gamma$-soft nuclei within the interacting boson-fermion model based on the Gogny energy density functional
• Propagation of uncertainties in the nuclear DFT models
• Optimized nuclear energy density functionals including long-range pion contributions
• Electromagnetic moments of ground and excited states calculated in heavy odd-N open-shell nuclei
• Particle-phonon coupling effects within theory of finite Fermi systems
• Nuclear Energy Density Optimization: UNEDF2