The 'lithium problem, in Big Bang nucleosynthesis(BBN) has recently focused on reactions involving ^7 Be.The ^6 Li(p,γ)^7 Be reaction can provide us not only with information about ^6 Li destruction but also wit...The 'lithium problem, in Big Bang nucleosynthesis(BBN) has recently focused on reactions involving ^7 Be.The ^6 Li(p,γ)^7 Be reaction can provide us not only with information about ^6 Li destruction but also with information about ^7 Be production. In the present work, the proton spectroscopic factor in ^7 Be is extracted to be 0.70 ± 0.17 from the angular distribution of ^7 Be(d, ^3 He)^6 Li at Ec.m. = 6.7 MeV. This value is then used to compute the direct component of the astrophysical ^6 Li(p,γ)^7 Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.展开更多
基金Supported by National Natural Science Foundation of China(11375269,11490563,11505117)Natural Science Foundation of Guangdong Province(2015A030310012)+1 种基金National Basic Research Program of China(2013CB834406)National Key Research and Development Program of China(2016YFA0400502)
文摘The 'lithium problem, in Big Bang nucleosynthesis(BBN) has recently focused on reactions involving ^7 Be.The ^6 Li(p,γ)^7 Be reaction can provide us not only with information about ^6 Li destruction but also with information about ^7 Be production. In the present work, the proton spectroscopic factor in ^7 Be is extracted to be 0.70 ± 0.17 from the angular distribution of ^7 Be(d, ^3 He)^6 Li at Ec.m. = 6.7 MeV. This value is then used to compute the direct component of the astrophysical ^6 Li(p,γ)^7 Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.