Electron capture in fp  shell at presupernova stage

doi:10.1088/1009-1963/14/6/038

中国物理B ›› 2005, Vol. 14 ›› Issue (6): 1272-1275.doi: 10.1088/1009-1963/14/6/038

• • 上一篇

Electron capture in fp shell at presupernova stage

彭秋和¹, 林理彬², 罗志全³, 刘门全⁴

(1)Department of Astronomy, Nanjing University, Nanjing 210093, China; (2)Department of Physics, Sichuan University, Chengdu 610065, China; (3)Department of Physics, Sichuan University, Chengdu 610065, China；Institute of Theoretical physics, China West Normal University, Nanchong 637002, China; (4)Institute of Theoretical physics, China West Normal University, Nanchong 637002, China

收稿日期:2004-10-14 修回日期:2005-02-07 出版日期:2005-05-27 发布日期:2005-05-27
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.10347008)

Electron capture in fp shell at presupernova stage

Luo Zhi-Quan (罗志全)^ab, Liu Men-Quan (刘门全)^b, Lin Li-Bin (林理彬)^a , Peng Qiu-He (彭秋和)^c

^a Department of Physics, Sichuan University, Chengdu 610065, China; ^b Institute of Theoretical physics, China West Normal University, Nanchong 637002, China; ^c Department of Astronomy, Nanjing University, Nanjing 210093, China

Received:2004-10-14 Revised:2005-02-07 Online:2005-05-27 Published:2005-05-27
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.10347008)

摘要/Abstract

摘要： The electron capture of neutron-rich nuclei in fp shell in massive stars at presupernova stage is discussed based on the nuclear shell model. The Gamow-Teller resonance transition strength is modified by introducing a Gaussian function. As a result, the electron capture rate in high density is evidently larger than the previous results given by some authors.

关键词: electron capture, nucleosynthesis, supernova

Abstract: The electron capture of neutron-rich nuclei in fp shell in massive stars at presupernova stage is discussed based on the nuclear shell model. The Gamow-Teller resonance transition strength is modified by introducing a Gaussian function. As a result, the electron capture rate in high density is evidently larger than the previous results given by some authors.

Key words: electron capture, nucleosynthesis, supernova

中图分类号: (Supernovae)

97.60.Bw

97.10.Cv (Stellar structure, interiors, evolution, nucleosynthesis, ages) 95.30.Cq (Elementary particle processes) 21.60.Cs (Shell model)

罗志全, 刘门全, 林理彬, 彭秋和. Electron capture in fp shell at presupernova stage[J]. 中国物理B, 2005, 14(6): 1272-1275.

Luo Zhi-Quan (罗志全), Liu Men-Quan (刘门全), Lin Li-Bin (林理彬), Peng Qiu-He (彭秋和). Electron capture in fp shell at presupernova stage[J]. Chinese Physics, 2005, 14(6): 1272-1275.

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Electron capture in fp shell at presupernova stage

Electron capture in fp shell at presupernova stage

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