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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2018, Vol. 42> Issue(6) : 065001 DOI: 10.1088/1674-1137/42/6/065001

New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors

  • 1.

      China Institute of Atomic Energy, Beijing 102413, China

  • 2.

      College of Physics and Energy, Shenzhen University, Shenzhen 518060, China

  • The ‘lithium problem’ in Big Bang nucleosynthesis (BBN) has recently focused on reactions involving 7Be. The 6Li(p, γ)7Be reaction can provide us not only with information about 6Li destruction but also with information about 7Be production. In the present work, the proton spectroscopic factor in 7Be is extracted to be 0.70±0.17 from the angular distribution of 7Be(d, 3He)6Li at Ec.m.=6.7 MeV. This value is then used to compute the direct component of the astrophysical 6Li(p, γ)7Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.
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  • References

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Zhi-Hong Li, Er-Tao Li, Jun Su, Yun-Ju Li, You-Bao Wang, Sheng-Quan Yan, Bing Guo, Ding Nan and Wei-Ping Liu. New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors[J]. Chinese Physics C, 2018, 42(6): 065001. doi: 10.1088/1674-1137/42/6/065001
Zhi-Hong Li, Er-Tao Li, Jun Su, Yun-Ju Li, You-Bao Wang, Sheng-Quan Yan, Bing Guo, Ding Nan and Wei-Ping Liu. New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors[J]. Chinese Physics C, 2018, 42(6): 065001.  doi: 10.1088/1674-1137/42/6/065001 shu
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Received: 2018-01-17
Revised: 2018-03-28
Fund

    Supported by National Natural Science Foundation of China (11375269, 11490563, 11505117), Natural Science Foundation of Guangdong Province (2015A030310012), National Basic Research Program of China (2013CB834406) and National Key Research and Development Program of China (2016YFA0400502)

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New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors

  • 1.  China Institute of Atomic Energy, Beijing 102413, China
  • 2.  College of Physics and Energy, Shenzhen University, Shenzhen 518060, China
  • Received Date: 2018-01-17
  • Accepted Date: 2018-03-28
  • Available Online: 2018-06-05
Fund Project:  Supported by National Natural Science Foundation of China (11375269, 11490563, 11505117), Natural Science Foundation of Guangdong Province (2015A030310012), National Basic Research Program of China (2013CB834406) and National Key Research and Development Program of China (2016YFA0400502)

Abstract: The ‘lithium problem’ in Big Bang nucleosynthesis (BBN) has recently focused on reactions involving 7Be. The 6Li(p, γ)7Be reaction can provide us not only with information about 6Li destruction but also with information about 7Be production. In the present work, the proton spectroscopic factor in 7Be is extracted to be 0.70±0.17 from the angular distribution of 7Be(d, 3He)6Li at Ec.m.=6.7 MeV. This value is then used to compute the direct component of the astrophysical 6Li(p, γ)7Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.

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