Constraining axion-gluon coupling in monohadron processes
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916384178438144 |
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| author | Bao, Shou-shan Gao, Wenhai Zhang, Hong Zhou, Jian |
| author_facet | Bao, Shou-shan Gao, Wenhai Zhang, Hong Zhou, Jian |
| contents | The axion-gluon coupling can be constrained directly through hard exclusive processes at the LHC. Specifically, we study the associated production of a long-lived axion with a $ρ^0$ meson in ultra-peripheral $AA$ collisions and in $pp$ collisions. With the axion escaped from the detector, the final state is characterized by a mono-hadron signature. The main background in our analysis originates from the $ρ^0+π^0$ process, where the photons from the $π^0$ decay are undetected due to limited detector performance. Our analysis yields an exclusion limit of the axion-gluon coupling that is comparable to the limit obtained from the mono-jet process at the LHC. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_18215 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Constraining axion-gluon coupling in monohadron processes Bao, Shou-shan Gao, Wenhai Zhang, Hong Zhou, Jian High Energy Physics - Phenomenology The axion-gluon coupling can be constrained directly through hard exclusive processes at the LHC. Specifically, we study the associated production of a long-lived axion with a $ρ^0$ meson in ultra-peripheral $AA$ collisions and in $pp$ collisions. With the axion escaped from the detector, the final state is characterized by a mono-hadron signature. The main background in our analysis originates from the $ρ^0+π^0$ process, where the photons from the $π^0$ decay are undetected due to limited detector performance. Our analysis yields an exclusion limit of the axion-gluon coupling that is comparable to the limit obtained from the mono-jet process at the LHC. |
| title | Constraining axion-gluon coupling in monohadron processes |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2405.18215 |