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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2602.18392 |
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| _version_ | 1866916037549621248 |
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| author | Broggini, Carlo Di Carlo, Giuseppe Di Luzio, Luca Piatti, Denise Toni, Claudio |
| author_facet | Broggini, Carlo Di Carlo, Giuseppe Di Luzio, Luca Piatti, Denise Toni, Claudio |
| contents | We report first results from RadioAxion, an underground experiment searching for axion dark matter through periodic modulations of radioisotope decays. We monitor the $α$ decay of ${^{241}}$Am via its $59.5$ keV $γ$ line using a NaI detector installed at the Gran Sasso Laboratory, where cosmic-ray-induced systematics are strongly suppressed. We present the measured spectra and the corresponding time-series analysis. No evidence for a periodic modulation is observed. From these data we derive constraints on the axion decay constant in the axion mass range from $10^{-21}$ to $10^{-9}$ eV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_18392 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | RadioAxion results on the search for axion dark matter under Gran Sasso Broggini, Carlo Di Carlo, Giuseppe Di Luzio, Luca Piatti, Denise Toni, Claudio High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment We report first results from RadioAxion, an underground experiment searching for axion dark matter through periodic modulations of radioisotope decays. We monitor the $α$ decay of ${^{241}}$Am via its $59.5$ keV $γ$ line using a NaI detector installed at the Gran Sasso Laboratory, where cosmic-ray-induced systematics are strongly suppressed. We present the measured spectra and the corresponding time-series analysis. No evidence for a periodic modulation is observed. From these data we derive constraints on the axion decay constant in the axion mass range from $10^{-21}$ to $10^{-9}$ eV. |
| title | RadioAxion results on the search for axion dark matter under Gran Sasso |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2602.18392 |