RadioAxion results on the search for axion dark matter under Gran Sasso
Carlo Broggini, Giuseppe Di Carlo, Luca Di Luzio, Denise Piatti, Claudio Toni

TL;DR
This paper reports the first results from RadioAxion, an underground experiment at Gran Sasso searching for axion dark matter via radioisotope decay modulations, setting new constraints on axion properties in a specific mass range.
Contribution
The study introduces RadioAxion, a novel underground experimental approach to detect axion dark matter through decay modulation analysis, providing new constraints in the low-mass axion range.
Findings
No periodic modulation detected in $^{241}$Am decay data.
Constraints established on axion decay constant for masses $10^{-21}$ to $10^{-9}$ eV.
Abstract
We report first results from RadioAxion, an underground experiment searching for axion dark matter through periodic modulations of radioisotope decays. We monitor the decay of via its keV 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 to eV.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Atomic and Subatomic Physics Research · Particle physics theoretical and experimental studies
