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arXiv · 2405.09971

A study of the fine-structure constant dependence of radiative capture in Halo-EFT

Ulf-G. Meißner·Bernard Ch. Metsch·Helen Meyer
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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.

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Ulf-G. Meißner, Bernard Ch. Metsch, Helen Meyer. 2024-05-16. A study of the fine-structure constant dependence of radiative capture in Halo-EFT. https://doi.org/10.1140/epja%2Fs10050-024-01408-1

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