Skip to Main content Skip to Navigation
Journal articles

Stellar electron-capture rates on nuclei based on a microscopic Skyrme functional

Abstract : We compute electron-capture rates for 54,56Fe 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 Jπ=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.
Complete list of metadata
Contributor : Sophie Heurteau <>
Submitted on : Tuesday, October 23, 2012 - 11:00:50 AM
Last modification on : Wednesday, October 14, 2020 - 3:59:54 AM

Links full text




A. F. Fantina, E. Khan, G. Colò, N. Paar, D. Vretenar. Stellar electron-capture rates on nuclei based on a microscopic Skyrme functional. Physical Review C, American Physical Society, 2012, 86, pp.035805. ⟨10.1103/PhysRevC.86.035805⟩. ⟨in2p3-00744447⟩



Record views