Abstract
Angular distributions of the 7Li(6Li, 6Li)7Li elastic scattering and the 7Li(6Li, 7Lig.s.)6Li, 7Li(6Li, 7Li0.48)6Li transfer reactions at Ec.m. = 23.7 MeV are measured with the Q3D magnetic spectrograph. The optical potential of 6Li + 7Li is obtained by fitting the elastic scattering differential cross sections. Based on the distorted wave Born approximation (DWBA) analysis, spectroscopic factors of 7Li = 6Li ⊗ n are determined to be 0.73 ± 0.05 and 0.90 ± 0.09 for the ground and first exited states in 7Li, respectively. Using the spectroscopic factors, the cross sections of the 6Li(n, γ0, 1)7Li direct neutron capture reactions and the astrophysical 6Li(n, γ)7Li reaction rates are derived.
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