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Scientific article
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English

Signals of millicharged dark matter in light-shining-through-wall experiments

Published inThe journal of high energy physics, vol. 2023, 17
Publication date2023
First online date2023-08-04
Abstract

We discuss a novel detection technique for millicharged dark matter that makes use of existing light-shining-through-wall (LSW) experiments searching for massive dark photons. Since millicharged particles interact with both the visible and dark sectors, a small background of such particles enables the search for visible signals even in the limit of a massless dark photon. Furthermore, for sufficiently large couplings, a small dark matter subcomponent consisting of millicharged particles can have a terrestrial abundance that is significantly enhanced with respect to its galactic abundance. We leverage this fact to show that in certain parts of parameter space, future runs of the LSW Dark SRF experiment can be used to set the strongest limits on millicharged relics.

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Keywords
  • Models for Dark Matter
  • New Gauge Interactions
  • New Light Particles
  • Particle Nature of Dark Matter
  • Photon: regeneration
  • Dark matter: mass
  • Background
  • Galaxy
  • Dark matter: hidden sector
  • Numerical calculations
Citation (ISO format)
BERLIN, Asher et al. Signals of millicharged dark matter in light-shining-through-wall experiments. In: The journal of high energy physics, 2023, vol. 2023, p. 17. doi: 10.1007/jhep08(2023)017
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ISSN of the journal1029-8479
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