| Strongly screening β~- decay antineutrino energy loss in presupernova |
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| 引用本文： | 刘晶晶,刘冬梅,郝良焕.Strongly screening β~- decay antineutrino energy loss in presupernova[J].中国物理C（英文版）,2019(6):64-73. |
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| 作者姓名： | 刘晶晶 刘冬梅 郝良焕 |
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| 基金项目： | Supported in part by the National Natural Science Foundation of China(11565020);the Counterpart Foundation of Sanya(2016PT43);the Special Foundation of Science and Technology Cooperation for Advanced Academy and Regional of Sanya(2016YD28);the Scientific Research Starting Foundation for 515 Talented Project of Hainan Tropical Ocean University(RHDRC201701);the Natural Science Foundation of Hainan Province(118MS071) |
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| 摘 要： | In this study, we investigate the ion-ball screening model(model(I)), focused on the screening electrostatic potential per electron under the Wigner-Seitz approximation and the Q-value correction. By considering the changes of the Coulomb free energy and the effects of strong electron screening(SES) on the Q-value and the Coulomb chemical potential, we discuss the linear-response screening model(model(Ⅱ)). We also analyze the influence of the SES on the β^- decay antineutrino energy loss rate by considering the corrections of the Q-value, the electron chemical potential, and electron energy, as well as the shell and pair effects. The antineutrino energy loss rate is found to increase by two orders of magnitude(e.g., the SES enhancement factor reaches 651.9 for model(Ⅱ)) due to the SES effect.
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| 关 键 词： | SUPERNOVAE evolution nuclear REACTIONS |
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