The Skyrme-TQRPA calculations of electron capture on hot nuclei in pre-supernova environment
- Authors: Dzhioev A.A.1, Vdovin A.I.1, Stoyanov C.2
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Affiliations:
- Bogoliubov Laboratory of Theoretical Physics
- Institute for Nuclear Research and Nuclear Energy
- Issue: Vol 79, No 6 (2016)
- Pages: 1019-1029
- Section: Nuclei
- URL: https://journal-vniispk.ru/1063-7788/article/view/190622
- DOI: https://doi.org/10.1134/S1063778816060077
- ID: 190622
Cite item
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 comparedwith those of the other model calculations.
About the authors
Alan A. Dzhioev
Bogoliubov Laboratory of Theoretical Physics
Author for correspondence.
Email: dzhioev@theor.jinr.ru
Russian Federation, Dubna
A. I. Vdovin
Bogoliubov Laboratory of Theoretical Physics
Email: dzhioev@theor.jinr.ru
Russian Federation, Dubna
Ch. Stoyanov
Institute for Nuclear Research and Nuclear Energy
Email: dzhioev@theor.jinr.ru
Bulgaria, Sofia
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