Dirac sea effects on superfluidity in nuclear matter

1998/08/19 by Masayuki Matsuzaki · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th

paper · pdf · doi:10.1103/physrevc.58.3407

published as Phys.Rev.C58:3407-3412,1998 · 11 pages, 3 eps figures included, uses REVTeX (with \tightenlines)

arxiv created 1998/08/19 · openalex publication_date 1998/12/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study two kinds of Dirac sea effects on the ¹S₀ pairing gap in nuclear matter based on the relativistic Hartree approximation to quantum hadrodynamics and the Gor'kov formalism. We show that the vacuum fluctuation effect on the nucleon effective mass is more important than the direct coupling between the Fermi sea and the Dirac sea due to the pairing interaction. The effects of the high-momentum cutoff are also discussed.

Citations

• Recent Progress in Quantum Hadrodynamics

Cited by

• Phenomenological construction of a relativistic nucleon–nucleon interaction for the superfluid gap equation in finite density systems
• Relativistic Hartree-Bogoliubov approach for nuclear matter with nonlinear coupling terms