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arXiv · 1001.4329

Neutron spectroscopic factors of 7Li and astrophysical 6Li(n,g)7Li reaction rates

Jun Su·Zhihong Li·Bing Guo·Xixiang Bai·Zhichang Li·Jiancheng Liu·Youbao Wang·Gang Lian·Sheng Zeng·Baoxiang Wang·Shengquan Yan·Yunju Li·Ertao Li·Qiwen Fan·Weiping Liu
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Abstract

Angular distributions of the 7Li(6Li,6Li)7Li elastic scattering and the 7Li(6Li,7Li_{g.s.})6Li, 7Li(6Li,7Li*_{0.48})6Li transfer reactions at Ec.m. = 23.7 MeV were measured with the Q3D magnetic spectrograph. The optical potential of 6Li+7Li was obtained by fitting the elastic scattering differential cross sections. Based on the distorted wave Born approximation (DWBA) analysis, spectroscopic factors of 7Li=6Li+n were determined to be 0.73 +- 0.05 and 0.90 +- 0.09 for the ground and first exited states in 7Li, respectively. Using the spectroscopic factors, the cross sections of the 6Li(n,g)7Li direct neutron capture reactions and the astrophysical 6Li(n,g)7Li reaction rates were derived.

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Jun Su, Zhihong Li, Bing Guo, Xixiang Bai, Zhichang Li, Jiancheng Liu, Youbao Wang, Gang Lian, Sheng Zeng, Baoxiang Wang, Shengquan Yan, Yunju Li, Ertao Li, Qiwen Fan, Weiping Liu. 2010-01-25. Neutron spectroscopic factors of 7Li and astrophysical 6Li(n,g)7Li reaction rates. https://doi.org/10.1088/0256-307x%2F27%2F5%2F052101

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