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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
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| China Institute of Atomic Energy, PO Box 275(10), Beijing 102413 |
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| Cite this article: |
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SU Jun, LI Zhi-Hong, GUO Bing et al 2010 Chin. Phys. Lett. 27 052101 |
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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.
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| Keywords:
21.10.Jx
25.60.Bx
25.60.Je
26.35.+c
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Received: 22 October 2009
Published: 23 April 2010
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| PACS: |
21.10.Jx
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(Spectroscopic factors and asymptotic normalization coefficients)
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25.60.Bx
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(Elastic scattering)
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25.60.Je
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(Transfer reactions)
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26.35.+c
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(Big Bang nucleosynthesis)
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