The structure of astrophysical S- factor and the fusion reactions rates

Seminars

Low-Energy Nuclear Physics Seminar

Date and Time: Friday, 16 December 2022, at 2:30 PM

Venue: Blokhintsev Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics, online on Zoom

Seminar topic: “The structure of astrophysical S- factor and the fusion reactions rates”

Authors: V. V. Sargsyan1, G. G. Adamian1, N. V. Antonenko1, H. Lenske2

1 – BLTP JINR
2 – Justus Liebig University Giessen, Germany

Speaker: V. Sargsyan

Abstract:

For fusion reactions of astrophysical interest, the existence of a maximum of S-factor is revealed within the extended quantum diffusion approach. The available experimental data are well described. The reason and consequences of the existence of the S-factor maximum are explained. An universal formula for the position of the maximum is proposed. A new analytical expression for estimating fusion reactions rates is proposed.