A study of the fine-structure constant dependence of radiative capture in Halo-EFT
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866912074002595840 |
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| author | Meißner, Ulf-G. Metsch, Bernard Ch. Meyer, Helen |
| author_facet | Meißner, Ulf-G. Metsch, Bernard Ch. Meyer, Helen |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_09971 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A study of the fine-structure constant dependence of radiative capture in Halo-EFT Meißner, Ulf-G. Metsch, Bernard Ch. Meyer, Helen Nuclear Theory Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Experiment 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. |
| title | A study of the fine-structure constant dependence of radiative capture in Halo-EFT |
| topic | Nuclear Theory Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2405.09971 |