Searches for the dark photon at fixed target experiments

Research output: Contribution to journalReview article

Abstract

Recent astrophysical observations provided indirect evidences for sub-GeV, light, dark-matter (DM). A new gauge particle in this mass range could exist as an extra U(1) gauge particle, called the dark photon. The dark photon can mix weakly with a ordinary photon and can mediate interactions of DM. If the dark photon is massive enough, it can decay into a pair of standard-model (SM) particles or DM particles. Light dark-matter particles in the MeV to GeV mass range, as well as in other mass ranges, have not been the subjects of intensive experimental researches. Large statistics is needed to search for dark-photon-mediated interactions. Therefore, high-power accelerators can be used to look for the dark photon. In this article, we review the current status of the experimental searches at various fixed-target experiments and the experiments planned in the near term future.

Original languageEnglish
Pages (from-to)1036-1044
Number of pages9
JournalNew Physics: Sae Mulli
Volume66
Issue number8
DOIs
Publication statusPublished - 2016 Aug 1

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dark matter
photons
astrophysics
accelerators
statistics
interactions
decay

Keywords

  • Accelerator
  • Dark matter
  • Dark photon
  • Fixed target experiment
  • Standard model

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Searches for the dark photon at fixed target experiments. / Choi, Suyong.

In: New Physics: Sae Mulli, Vol. 66, No. 8, 01.08.2016, p. 1036-1044.

Research output: Contribution to journalReview article

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