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Strongly screening corrections to antineutrino energy loss by \(\beta ^{-}\)-decay of nuclides 53Fe, 54Fe, 55Fe, and 56Fe in supernova

  • Jing-Jing Liu
  • Dong-Mei Liu
Original Article

Abstract

Based on the p-f shell-model, we discuss and calculate \(\beta^{-}\)-decay half-lives of neutron-rich nuclei, with a consideration of shell and pair effects, the decay energy, and the nucleon numbers. According to the linear response theory model, we study the effect of electron screening on the electron energy, beta-decay threshold energy, and the antineutrino energy loss rate by \(\beta^{-}\)-decay of some iron isotopes. We find that the electron screening antineutrino energy loss rates increase by about two orders of magnitude due to the shell effects and the pairing effect. Beta-decay rates with Q-value corrections due to strong electron screening are higher than those without the Q-value corrections by more than two orders of magnitude. Our conclusions may be helpful for the research on numerical simulations of the cooling of stars.

Keywords

Physical data and processes: nuclear reactions Nucleosynthesis Abundances—stars: supernova 

Notes

Acknowledgements

This work was supported in part by the National Natural Science Foundation of China under grants 11565020, and the Counterpart Foundation of Sanya under grant 2016PT43, the Special Foundation of Science and Technology Cooperation for Advanced Academy and Regional of Sanya under grant 2016YD28, the Scientific Research Starting Foundation for 515 Talented Project of Hainan Tropical Ocean University under grant RHDRC201701, and the Natural Science Foundation of Hainan Province under grant 118MS071.

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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Marine Science and TechnologyHainan Tropical Ocean UniversitySanyaChina

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