New determination of the<sup>7</sup>Be ground state spectroscopic factor and the<sup>6</sup>Li(p, ${\rm{\gamma }}$)<sup>7</sup>Be astrophysical ${S}({E})$ factors
Zhihong LiChina Institute of Atomic Energy, Beijing 102413, ChinaErtao LiCollege of Physics and Energy Shenzhen University Shenzhen 518060 ChinaJun SuChina Institute of Atomic Energy, Beijing 102413, ChinaYunju LiChina Institute of Atomic Energy, Beijing 102413, ChinaYoubao WangChina Institute of Atomic Energy, Beijing 102413, ChinaS. Q. YanChina Institute of Atomic Energy, Beijing 102413, ChinaBing GuoChina Institute of Atomic Energy, Beijing 102413, ChinaDing NanChina Institute of Atomic Energy, Beijing 102413, ChinaWeiping LiuChina Institute of Atomic Energy, Beijing 102413, China
2018en
ABI
Abstract
The 'lithium problem' in Big Bang nucleosynthesis (BBN) has recently focused on reactions involving 7Be. The 6Li()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 . This value is then used to compute the direct component of the astrophysical 6Li()7Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.
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