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Título: | Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions |
Autor: | Sarriguren, Pedro CSIC ORCID | Palabras clave: | Weak interaction rates rp process Quasiparticle random phase approximation [PACS] β decay; double β decay; electron and muon capture [PACS] Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations) [PACS] Explosive burning in accreting binary systems (novae, x-ray bursts) [PACS] Properties of specific nuclei listed by mass ranges: 59 ≤ A ≤ 89 |
Fecha de publicación: | 12-oct-2009 | Editor: | Elsevier | Citación: | Physics Letters B 680 (5): 438–442 (2009) | Resumen: | Weak interaction rates are studied in neutron deficient Kr and Sr waiting-point isotopes in ranges of densities and temperatures relevant for the rp process. The nuclear structure is described within a microscopic model (deformed QRPA) that reproduces not only the half-lives but also the Gamow–Teller strength distributions recently measured. The various sensitivities of the decay rates to both density and temperature are discussed. Continuum electron capture is shown to contribute significantly to the weak rates at rp-process conditions. | Descripción: | 5 pages, 6 figures.--PACS nrs.:23.40.-s, 21.60.Jz, 26.30.Ca, 27.50.+e.--ArXiv pre-print available at: http://arxiv.org/abs/0910.1021v1 | Versión del editor: | http://dx.doi.org/10.1016/j.physletb.2009.09.046 | URI: | http://hdl.handle.net/10261/19103 | DOI: | 10.1016/j.physletb.2009.09.046 | ISSN: | 0370-2693 |
Aparece en las colecciones: | (CFMAC-IEM) Artículos |
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