Neutron Spectroscopic Factors of 7Li and Astrophysical 6Li(n,γ)7Li Reaction Rates
SU Jun, LI Zhi-Hong, GUO Bing, BAI Xi-Xiang, LI Zhi-Chang, LIU Jian-Cheng, WANG You-Bao, LIAN Gang, ZENG Sheng, WANG Bao-Xiang, YAN Sheng-Quan, LI Yun-Ju, LI Er-Tao, FAN Qi-Wen, LIU Wei-Ping
China Institute of Atomic Energy, PO Box 275(10), Beijing 102413
Neutron Spectroscopic Factors of 7Li and Astrophysical 6Li(n,γ)7Li Reaction Rates
SU Jun, LI Zhi-Hong, GUO Bing, BAI Xi-Xiang, LI Zhi-Chang, LIU Jian-Cheng, WANG You-Bao, LIAN Gang, ZENG Sheng, WANG Bao-Xiang, YAN Sheng-Quan, LI Yun-Ju, LI Er-Tao, FAN Qi-Wen, LIU Wei-Ping
China Institute of Atomic Energy, PO Box 275(10), Beijing 102413
摘要Angular distributions of the 7Li(6Li,6Li)7Li elastic scattering and the 7Li(6Li,7Lig.s.)6Li,7Li(6Li,7Li0.48)6Li transfer reactions at Ec.m.=23.7 MeV are measured with the Q3D magnetic spectrograph. The optical potential of 6Li+7Li is obtained by fitting the elastic scattering differential cross sections. Based on the distorted wave Born approximation (DWBA) analysis, spectroscopic factors of 7Li=6 are 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 direct neutron capture reactions and the astrophysical reaction rates are derived.
Abstract：Angular distributions of the 7Li(6Li,6Li)7Li elastic scattering and the 7Li(6Li,7Lig.s.)6Li,7Li(6Li,7Li0.48)6Li transfer reactions at Ec.m.=23.7 MeV are measured with the Q3D magnetic spectrograph. The optical potential of 6Li+7Li is obtained by fitting the elastic scattering differential cross sections. Based on the distorted wave Born approximation (DWBA) analysis, spectroscopic factors of 7Li=6 are 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 direct neutron capture reactions and the astrophysical reaction rates are derived.
SU Jun;LI Zhi-Hong;GUO Bing;BAI Xi-Xiang;LI Zhi-Chang;LIU Jian-Cheng;WANG You-Bao;LIAN Gang;ZENG Sheng;WANG Bao-Xiang;YAN Sheng-Quan;LI Yun-Ju;LI Er-Tao;FAN Qi-Wen;LIU Wei-Ping. Neutron Spectroscopic Factors of 7Li and Astrophysical 6Li(n,γ)7Li Reaction Rates[J]. 中国物理快报, 2010, 27(5): 52101-052101.
SU Jun, LI Zhi-Hong, GUO Bing, BAI Xi-Xiang, LI Zhi-Chang, LIU Jian-Cheng, WANG You-Bao, LIAN Gang, ZENG Sheng, WANG Bao-Xiang, YAN Sheng-Quan, LI Yun-Ju, LI Er-Tao, FAN Qi-Wen, LIU Wei-Ping. Neutron Spectroscopic Factors of 7Li and Astrophysical 6Li(n,γ)7Li Reaction Rates. Chin. Phys. Lett., 2010, 27(5): 52101-052101.
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LI Er-Tao;LI Zhi-Hong**;SU Jun;GUO Bing;LI Yun-Ju;YAN Sheng-Quan;BAI Xi-Xiang;WANG You-Bao;WANG Bao-Xiang;LIAN Gang;ZENG Sheng;FANG Xiao;ZHAO Wei-Juan;LIU Wei-Ping
. Astrophysical Rates for the 6He(p, γ)7Li Reaction[J]. 中国物理快报, 2011, 28(5): 52102-052102.
2010, Vol. 27 
are 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 
direct neutron capture reactions and the astrophysical 
reaction rates are derived. 
are 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 
reaction rates are derived.