Abstract： The cross section of the direct neutron capture reaction 12C(n,γ)13C(1/2+) is calculated with the asymptotic normalization coefficient method. The result is in good agreement with a recent experiment at low energy. An enormous enhancement of cross section is found for this direct neutron capture in which a p-wave neutron is captured into an 2s1/2 orbit with neutron halo. The possible effect of the neutron halo structure presented in this reaction on the s-process in astrophysics is discussed in general.
WU Kai-Su;CHEN Yong-Shou;LIU Zu-Hua;LIN Cheng-Jian;ZHANG Huan-Qiao. Calculation of Cross Section of Radiative Halo-Neutron Capture by 12C at Stellar Energy with the Asymptotic Normalization Coefficient Method[J]. 中国物理快报, 2003, 20(1): 49-52.
WU Kai-Su, CHEN Yong-Shou, LIU Zu-Hua, LIN Cheng-Jian, ZHANG Huan-Qiao. Calculation of Cross Section of Radiative Halo-Neutron Capture by 12C at Stellar Energy with the Asymptotic Normalization Coefficient Method. Chin. Phys. Lett., 2003, 20(1): 49-52.
2003, Vol. 20 
