Dirac Sea Effects on Superfluidity in Nuclear Matter

Details Dirac Sea Effects on Superfluidity in Nuclear Matter Dirac Sea Effects on Superfluidity in Nuclear Matter

1998-08-19

arxiv.org/abs/nucl-th/9808052v1

Phys.Rev.C58:3407-3412,1998

Physics

Nuclear Physics

Nuclear Theory

11 pages, 3 eps figures included, uses REVTeX (with \tightenlines)

Scientific paper

10.1103/PhysRevC.58.3407

We study two kinds of Dirac sea effects on the $^1S_0$ 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.

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