Publication: Dark photon searches with atomic transitions.
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2019-07-18
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Springer
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Abstract
Dark matter could be made up of dark photons, massive but very light particles whose interactions with matter resemble those of usual photons but suppressed by a small mixing parameter. We analyze the main approaches to dark photon interactions and how they can be applied to direct detection experiments which test different ranges of masses and mixings. A new experiment based on counting dark photons from induced atomic transitions in a target material is proposed. This approach appears to be particularly appropriate for dark photon detection in the meV mass range, extending the constraints in the mixing parameter by up to eight orders of magnitude with respect to previous experiments.
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© The Author(s) 2019.
We would like to thank A. Aranda, D. Castellanos, E. Vazquez-Jauregui, P. Amore and the entire AXILA Collaboration for fundamental discussions about the experimental setup. This work has been supported by the MINECO (Spain) projects FIS2014-52837-P, FIS2016-78859-P(AEI/FEDER, UE), and Consolider-Ingenio MULTIDARK CSD2009-00064.