Asymptotic normalization coefficients (ANCs) for 8Li->7Li+n have been extracted from the neutron transfer reaction 13C(7Li,8Li)12C at 63 MeV. These are related to the ANCs in 8B->7Be+p using charge symmetry. We extract ANCs for 8B that are in very good agreement with those inferred from proton transfer and breakup experiments. We have also separated the contributions from the p_1/2 and p_3/2 components in the transfer. We find the astrophysical factor for the 7Be(p,gamma)8B reaction to be S_17(0)=17.6+/-1.7 eVb. This is the first time that the rate of a direct capture reaction of astrophysical interest has been determined through a measurement of the ANCs in the mirror system.

翻译：8Li - > 7Li+n 的抗药性正常化系数(ANCs) 从63MV 的中子传输反应 13C(7Li,8Li)12C中提取。这些系数与8B->7Be+p 中的ANCs 有关,使用电荷对称法。我们为8B 提取的ANCs与质子传输和分离实验中推断的参数非常一致。我们还将传输中的p_1/2和p_3/2成分分开。我们发现7Be(p,gamma)8B反应的天体物理系数为S_17(0)=17.6+/1.7 eVb。这是第一次通过测量镜系中的ANCs值来确定天体物理利益直接捕捉取反应的速率。