Non-empirical pairing energy functional in nuclear matter and finite nuclei

2009/04/30 by K. Hebeler, T. Duguet, T. Lesinski +1
Earth and Planetary Sciences · Physics and Astronomy · #High-pressure geophysics and materials #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevc.80.044321

published as Phys.Rev.C80:044321,2009 · 14 pages, 12 figures, published version

openalex publication_date 2009/10/20 · arxiv created 2009/10/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study ¹S₀ pairing gaps in neutron and nuclear matter as well as T=1 pairing in finite nuclei on the basis of microscopic two-nucleon interactions. Special attention is paid to the consistency of the pairing interaction and normal self-energy contributions. We find that pairing gaps obtained from low-momentum interactions depend only weakly on approximation schemes for the normal self-energy, required in present energy-density functional calculations, while pairing gaps from hard potentials are very sensitive to the effective-mass approximation scheme.

Citations

• Solution of the Dyson equation for nucleons in the superfluid phase
• Self-consistent mean-field models for nuclear structure
• Self-consistent Green's function method for nuclei and nuclear matter
• Renormalization group approach to neutron matter: quasiparticle interactions, superfluid gaps and the equation of state
• Reduction of the superfluid gap by scattering