The study of¹²C(α,γ) astrophysical reaction using¹²C(⁶Li,d) and¹²C(⁷Li,t) reaction at 20 MeV and in the framework of the potential model

Abstract

Abstract. The triton angular distribution in the 12 C( 7 Li,t) 16 O reaction has been measured at 20 MeV incident energy.Comparison of the data with Finite Range DWBA and CDCC-CRC calculations show that breakup coupling effects are prominent in the transfer to the ground state. This observation is similar to that in the 12 C( 6 Li,d) reaction at the same incident energy. The alpha spectroscopic factor of the 16 O ground state is determined (Sα=0.25) from a comparison of the measured angular distribution with respect to the CDCC-CRC calculations. The E2 S-factor of the 12 C(α,γ) reaction at 300 keV in the framework of a potential model is determined to be about 118 keV-barn.