Potential cluster calculations for the astrophysical S-factor and reaction rate of the radiative 3He(4He,γ)7Be capture

Abstract

In the frame of a modified potential cluster model based on the classification of orbital states according to Young diagrams and revised interaction potential parameters for the bound states of 7 Be in the 3 He 4 He cluster model with forbidden states, the astrophysical S-factor for the radiative capture reaction 3 Не( 4 Не,) 7 Bе has been calculated from 10 keV. The result obtained, S(23 keV) = 0.561 keVb, reproduces the latest experimental data at 23 keV. The calculated and parametrized reaction rate is compared with some known results in the range of temperatures from 0.05 to 5T9.

The reaction rate of radiative n8Li capture in the range from 0.01 to 10 T9

“…Frontiers in Astronomy and Space Sciences frontiersin.org group of the neighboring isotopes. For example, it was found that low-temperature reaction rates for 10-13 B(n,γ) 11-14 B conditioned by the S-wave capture outside of the resonance energy region show some regularity-the higher the channel threshold, the higher the reaction rate (Dubovichenko et al, 2020;Dubovichenko et al, 2021;Dubovichenko et al, 2023a;Dubovichenko et al, 2023b). The same effect is observed for the proton capture on the nitrogen isotopes 12,13,15…”