dorsal/arxiv
View SchemaBeta decay of r-process waiting-point nuclei in a self-consistent approach
| Authors | J. Engel, M. Bender, J. Dobaczewski, W. Nazarewicz, R. Surman |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9902059 |
| URL | https://arxiv.org/abs/nucl-th/9902059 |
| DOI | 10.1103/PhysRevC.60.014302 |
| Journal | Phys.Rev. C60 (1999) 014302 |
Abstract
Beta-decay rates for spherical neutron-rich r-process waiting-point nuclei are calculated within a fully self-consistent Quasiparticle Random-Phase Approximation, formulated in the Hartree-Fock-Bogolyubov canonical single-particle basis. The same Skyrme force is used everywhere in the calculation except in the proton-neutron particle-particle channel, where a finite-range force is consistently employed. In all but the heaviest nuclei, the resulting half-lives are usually shorter by factors of 2 to 5 than those of calculations that ignore the proton-neutron particle-particle interaction. The shorter half-lives alter predictions for the abundance distribution of r-process elements and for the time it takes to synthesize them.
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"abstract": "Beta-decay rates for spherical neutron-rich r-process waiting-point nuclei\nare calculated within a fully self-consistent Quasiparticle Random-Phase\nApproximation, formulated in the Hartree-Fock-Bogolyubov canonical\nsingle-particle basis. The same Skyrme force is used everywhere in the\ncalculation except in the proton-neutron particle-particle channel, where a\nfinite-range force is consistently employed. In all but the heaviest nuclei,\nthe resulting half-lives are usually shorter by factors of 2 to 5 than those of\ncalculations that ignore the proton-neutron particle-particle interaction. The\nshorter half-lives alter predictions for the abundance distribution of\nr-process elements and for the time it takes to synthesize them.",
"arxiv_id": "nucl-th/9902059",
"authors": [
"J. Engel",
"M. Bender",
"J. Dobaczewski",
"W. Nazarewicz",
"R. Surman"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.60.014302",
"journal_ref": "Phys.Rev. C60 (1999) 014302",
"title": "Beta decay of r-process waiting-point nuclei in a self-consistent approach",
"url": "https://arxiv.org/abs/nucl-th/9902059"
},
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