dorsal/arxiv
View SchemaStellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei Calculated in the Proton-Neutron Quasiparticle Random-Phase Approximation (II).(A = 61 to 80)
| Authors | J. -U. Nabi, H. V. Klapdor-Kleingrothaus |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9907115 |
| URL | https://arxiv.org/abs/nucl-th/9907115 |
Abstract
Weak interaction rates and the associated energy losses for massive nuclei in the fp-shell are calculated in stellar matter using a modified form of proton-neutron quasiparticle RPA model with separable Gamow-Teller forces. A total of 209 nuclei with mass numbers ranging from A = 61 to 80 are considered here for the calculation of weak rates. These also include many neutron-rich nuclei which play a key role in the dynamics of the core collapse calculations. The stellar weak rates are calculated over a wide range of densities (10 < \rho Y_{e} (gcm^{-3}) < 10^{11}) and temperatures (10^{7} < T(K) 30 x 10^{9}). This is our third paper in a series starting with the calculation of stellar weak rates for nuclei in the sd-shell. The calculated rates take into consideration the latest experimental energy levels and ft value compilations. The effect of particle emission processes is taken into account and the energies and probabilities of these particle emission processes are also calculated in stellar environment. Our results are presented here on an abbreviated scale of temperature and density.
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"abstract": "Weak interaction rates and the associated energy losses for massive nuclei in\nthe fp-shell are calculated in stellar matter using a modified form of\nproton-neutron quasiparticle RPA model with separable Gamow-Teller forces. A\ntotal of 209 nuclei with mass numbers ranging from A = 61 to 80 are considered\nhere for the calculation of weak rates. These also include many neutron-rich\nnuclei which play a key role in the dynamics of the core collapse calculations.\nThe stellar weak rates are calculated over a wide range of densities (10 \u003c \\rho\nY_{e} (gcm^{-3}) \u003c 10^{11}) and temperatures (10^{7} \u003c T(K) 30 x 10^{9}). This\nis our third paper in a series starting with the calculation of stellar weak\nrates for nuclei in the sd-shell. The calculated rates take into consideration\nthe latest experimental energy levels and ft value compilations. The effect of\nparticle emission processes is taken into account and the energies and\nprobabilities of these particle emission processes are also calculated in\nstellar environment. Our results are presented here on an abbreviated scale of\ntemperature and density.",
"arxiv_id": "nucl-th/9907115",
"authors": [
"J. -U. Nabi",
"H. V. Klapdor-Kleingrothaus"
],
"categories": [
"nucl-th"
],
"title": "Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei Calculated in the Proton-Neutron Quasiparticle Random-Phase Approximation (II).(A = 61 to 80)",
"url": "https://arxiv.org/abs/nucl-th/9907115"
},
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