The Skyrme-TQRPA calculations of electron capture on hot nuclei in pre-supernova environment
Abstract
We combine the thermal QRPA approach with the Skyrme energy density functional theory (Skyrme-TQRPA) for modelling the process of electron capture on nuclei in supernova environment. For a sample nucleus, 56Fe, the Skyrme-TQRPA approach is applied to analyze thermal effects on the strength function of GT+ transitions which dominate electron capture at Ee 30~MeV. Several Skyrme interactions are used in order to verify the sensitivity of the obtained results to the Skyrme force parameters. Finite-temperature cross sections are calculated and the results are compared with those of the other model calculations.
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