A study of the fine-structure constant dependence of radiative capture in Halo-EFT
Nuclear Theory
2024-10-17 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Nuclear Experiment
Abstract
We study the fine-structure constant dependence of the rates of some selected radiative capture reactions within the framework of so-called Halo Effective Field Theory in order to assess the adequacy of some assumptions made on the Coulomb penetrability. We find that this dependence deviates from that implied by a parameterization of the cross sections of this effect via a simple penetration factor. Some features of this fine-structure dependence are discussed, in particular its potential impact on the abundances of the light elements in primordial nucleosynthesis.
Keywords
Cite
@article{arxiv.2405.09971,
title = {A study of the fine-structure constant dependence of radiative capture in Halo-EFT},
author = {Ulf-G. Meißner and Bernard Ch. Metsch and Helen Meyer},
journal= {arXiv preprint arXiv:2405.09971},
year = {2024}
}
Comments
17 pages, 14 figures, references updated