Astrophysical S-factor of 4He12C radiative capture at low energies

TL;DR

This paper models the astrophysical S-factor for the 4He12C radiative capture at low energies using a potential cluster approach, successfully matching experimental data and estimating the S(300) value.

Contribution

It introduces a potential cluster model focusing on E2 transitions to describe the S-factor of 4He12C capture at low energies, providing new theoretical insights.

Findings

Good agreement with experimental data achieved

Estimated S(300) value is 16.0 keV b

Model effectively describes E2 transition contributions

Abstract

The possibility to describe the astrophysical S-factor of the 4He12C radiative capture is considered in the potential cluster model at the energy range 0.1-4.0 MeV. It is shown that the approach used, which takes into account E2 transitions only, gives a good description of the new experimental data for adjusted parameters of potentials and leads to the value S(300) = 16.0$\cdotp$keV b.