Beta-decay rates of r-process nuclei in the relativistic quasiparticle random phase approximation

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dc.creatorNiksic, T.
dc.creatorMarketin, T.
dc.creatorVretenar, D.
dc.creatorPaar, N.
dc.creatorRing, P.
dc.date2004-12-08
dc.date.accessioned2026-07-07T12:43:03Z
dc.date.available2026-07-07T12:43:03Z
dc.descriptionThe fully consistent relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) is employed in the calculation of beta-decay half-lives of neutron-rich nuclei in the N$\approx$50 and N$\approx$82 regions. A new density-dependent effective interaction, with an enhanced value of the nucleon effective mass, is used in relativistic Hartree-Bogoliubov calculation of nuclear ground states and in the particle-hole channel of the PN-RQRPA. The finite range Gogny D1S interaction is employed in the T=1 pairing channel, and the model also includes a proton-neutron particle-particle interaction. The theoretical half-lives reproduce the experimental data for the Fe, Zn, Cd, and Te isotopic chains, but overestimate the lifetimes of Ni isotopes and predict a stable 132Sn.
dc.description28 pages, 12 eps figures, accepted for publication in Physical Review C
dc.identifierhttps://arxiv.org/abs/nucl-th/0412028
dc.identifierhttp://arxiv.org/abs/nucl-th/0412028
dc.identifierPhys.Rev.C71:014308,2005
dc.identifierdoi:10.1103/PhysRevC.71.014308
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220291
dc.subjectNuclear Theory
dc.titleBeta-decay rates of r-process nuclei in the relativistic quasiparticle random phase approximation
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