New results for the astrophysical S-factor and reaction rate of radiative 3He4He capture

TL;DR

This paper presents new theoretical calculations of the astrophysical S-factor and reaction rate for the 3He(4He,γ)7Be radiative capture, aligning well with recent experimental data and covering a broad temperature range.

Contribution

It introduces a modified potential cluster model with revised interaction parameters to accurately compute the S-factor and reaction rate for the reaction.

Findings

Calculated S(23 keV) = 0.561 keV b matches experimental data.

Reaction rate parametrization agrees with existing results across 0.05 to 5 T9.

Model provides reliable predictions for astrophysical applications.

Abstract

In the frame of modified potential cluster model based on the classification of orbital states by Young diagrams and revised interaction potential parameters for the bound states of 7Be in 3He4He cluster model with forbidden states the astrophysical S-factor for the radiative capture reaction has been calculated from the 10 keV. Obtained results S(23 keV) = 0.561 keV b reproduce the latest experimental data at 23 keV. Calculated and parametrized reaction rate is compared to some results known in the range of temperatures from 0.05 to 5 T9.