S-wave Pairing of $Λ$ Hyperons in Dense Matter

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dc.creatorBalberg, Shmuel
dc.creatorBarnea, Nir
dc.date1997-09-08
dc.date.accessioned2026-07-07T11:11:21Z
dc.date.available2026-07-07T11:11:21Z
dc.descriptionIn this work we calculate the $^1S_0$ gap energies of $Λ$ hyperons in neutron star matter. The calculation is based on a solution of the BCS gap equation for an effective G-matrix parameterization of the $Λ-Λ$ interaction with a nuclear matter background, presented recently by Lanskoy and Yamamoto. We find that a gap energy of a few tenths of MeV is expected for $Λ$ Fermi momenta up to about 1.3 fm$^{-1}$. Implications for neutron star matter are examined, and suggest the existence of a $Λ$ $^1S_0$ superfluid between the threshold baryon density for $Λ$ formation and the baryon density where the $Λ$ fraction reaches $15-20%$.
dc.description16 pages, Revtex, 9 figures, 33 references
dc.identifierhttps://arxiv.org/abs/nucl-th/9709013
dc.identifierhttp://arxiv.org/abs/nucl-th/9709013
dc.identifierPhys.Rev.C57:409-416,1998
dc.identifierdoi:10.1103/PhysRevC.57.409
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191068
dc.subjectNuclear Theory
dc.subjectAstrophysics
dc.titleS-wave Pairing of $Λ$ Hyperons in Dense Matter
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