The calculation of astrophysical S factors for E1 and E2 capture data of 12C(α , γ)16O reaction at 300 keV

Abstract

The astrophysical S factors of E1 and E2 capture data of 12C( α , γ) reaction at 300 keV have been calculated based on our recent determined ANC values of 6.92 MeV and 7.12 MeV states of 16O using R-matrix. The S-factors are extrapolated into the range of burning temperature and the S-factors at 300 keV are S E1= (86 ± 34) keV b and SE2= (60 ± 33) keV b.