A comprehensive study of axion photoproduction off the nucleon in chiral effective field theory
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916373335113728 |
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| author | Cao, Xiong-Hui Guo, Zhi-Hui |
| author_facet | Cao, Xiong-Hui Guo, Zhi-Hui |
| contents | We calculate the amplitudes of the axion photoproduction off the nucleon, i.e., $γN \to a N$, within the framework of chiral effective field theory. Several different types of contributions are simultaneously included in our calculation, namely the nucleon exchanges up to next-to-leading order, the $aγγ$ vertex and the vector meson exchanges in the $t$-channel. We utilize the existing hadronic inputs as much as possible to fix the unknown couplings. A comprehensive study of the phenomenological discussions is then provided in this work. Different mechanisms in the $γN \to a N$ processes manifest distinct behaviors in the total and differential cross sections, which could provide useful quantities to distinguish different axion models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_15825 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A comprehensive study of axion photoproduction off the nucleon in chiral effective field theory Cao, Xiong-Hui Guo, Zhi-Hui High Energy Physics - Phenomenology We calculate the amplitudes of the axion photoproduction off the nucleon, i.e., $γN \to a N$, within the framework of chiral effective field theory. Several different types of contributions are simultaneously included in our calculation, namely the nucleon exchanges up to next-to-leading order, the $aγγ$ vertex and the vector meson exchanges in the $t$-channel. We utilize the existing hadronic inputs as much as possible to fix the unknown couplings. A comprehensive study of the phenomenological discussions is then provided in this work. Different mechanisms in the $γN \to a N$ processes manifest distinct behaviors in the total and differential cross sections, which could provide useful quantities to distinguish different axion models. |
| title | A comprehensive study of axion photoproduction off the nucleon in chiral effective field theory |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2408.15825 |