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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2404.18993 |
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| _version_ | 1866911931667841024 |
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| author | Broggini, Carlo Di Carlo, Giuseppe Di Luzio, Luca Toni, Claudio |
| author_facet | Broggini, Carlo Di Carlo, Giuseppe Di Luzio, Luca Toni, Claudio |
| contents | We propose to investigate the time modulation of radioisotope decays deep underground as a method to explore axion dark matter. In this work, we focus on the $α$-decay of heavy isotopes and develop a theoretical description for the $θ$-dependence of $α$-decay half-lives, which enables us to predict the time variation of $α$-radioactivity in response to an oscillating axion dark matter background. To probe this scenario, we have recently constructed and installed a setup deep underground at the Gran Sasso Laboratory, based on the $α$-decay of Americium-241. This prototype experiment, named RadioAxion-$α$, will allow us to explore a broad range of oscillation's periods, from a micro-second up to one year, thus providing competitive limits on the axion decay constant across 13 orders of magnitude in the axion mass, ranging from $10^{-9}$ eV to $10^{-20}$ eV after one month of data collection, and down to $10^{-22}$ eV after three years. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_18993 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Alpha radioactivity deep-underground as a probe of axion dark matter Broggini, Carlo Di Carlo, Giuseppe Di Luzio, Luca Toni, Claudio High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory We propose to investigate the time modulation of radioisotope decays deep underground as a method to explore axion dark matter. In this work, we focus on the $α$-decay of heavy isotopes and develop a theoretical description for the $θ$-dependence of $α$-decay half-lives, which enables us to predict the time variation of $α$-radioactivity in response to an oscillating axion dark matter background. To probe this scenario, we have recently constructed and installed a setup deep underground at the Gran Sasso Laboratory, based on the $α$-decay of Americium-241. This prototype experiment, named RadioAxion-$α$, will allow us to explore a broad range of oscillation's periods, from a micro-second up to one year, thus providing competitive limits on the axion decay constant across 13 orders of magnitude in the axion mass, ranging from $10^{-9}$ eV to $10^{-20}$ eV after one month of data collection, and down to $10^{-22}$ eV after three years. |
| title | Alpha radioactivity deep-underground as a probe of axion dark matter |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2404.18993 |