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β -decay properties of neutron-rich rare-earth isotopes

AuthorsSarriguren, Pedro
Issue Date4-Jan-2017
PublisherAmerican Physical Society
CitationPhysical Review C - Nuclear Physics 95:014304 (2017)
AbstractIn this paper, β-decay properties of even-even neutron-rich isotopes in the rare-earth mass region are studied within a microscopic theoretical approach based on a proton-neutron quasiparticle random-phase approximation. The underlying mean field is constructed self-consistently from a deformed Hartree-Fock calculation with Skyrme interactions and pairing correlations to which particle-hole and particle-particle residual interactions are added. Nuclei in this mass region participate in the astrophysical rapid neutron capture process and are directly involved in the generation of the rare-earth peak in the isotopic abundance pattern centered at A≃160. The energy distributions of the Gamow-Teller strength as well as the β-decay half-lives and the β-delayed neutron-emission probabilities are discussed and compared with the available experimental information and with calculations based on different approaches.
Description9 pags., 5 figs.
Publisher version (URL)https://doi.org/10.1103/PhysRevC.95.014304
Identifiersdoi: 10.1103/PhysRevC.95.014304
issn: 1089-490X
Appears in Collections:(CFMAC-IEM) Artículos
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