Journal
PHYSICAL REVIEW C
Volume 86, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.86.035805
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Funding
- ANR SN2NS
- CompStar
- Research Networking Program of the European Science Foundation
- FNRS (Belgium)
- MZOS Project [1191005-1010]
- Croatian Science Foundation
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We compute electron-capture rates for Fe-54,Fe-56 and Ge isotopes using a self-consistent microscopic approach. The single-nucleon basis and the occupation factors in the target nucleus are calculated in the finite-temperature Skyrme Hartree-Fock model, and the J(pi) = 0(+/-), 1(+/-), 2(+/-) charge-exchange transitions are determined in the finite-temperature random-phase approximation (RPA). The scheme is self-consistent; i.e., both the Hartree-Fock and the RPA equations are based on the same Skyrme functional. Several interactions are used in order to provide a theoretical uncertainty on the electron-capture rates for different astrophysical conditions. Comparing electron-capture rates obtained either with different Skyrme sets or with different available models indicates that differences up to one to two orders of magnitude can arise.
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