Dark matter direct detection with accelerometers

Peter W. Graham, David E. Kaplan, Jeremy Mardon, Surjeet Rajendran, William A. Terrano

Research output: Contribution to journalArticlepeer-review

100 Scopus citations

Abstract

The mass of the dark matter particle is unknown, and may be as low as ∼10-22 eV. The lighter part of this range, below ∼eV, is relatively unexplored both theoretically and experimentally but contains an array of natural dark matter candidates. An example is the relaxion, a light boson predicted by cosmological solutions to the hierarchy problem. One of the few generic signals such light dark matter can produce is a time-oscillating, equivalence-principle-violating force. We propose searches for this using accelerometers, and consider in detail the examples of torsion balances, atom interferometry, and pulsar timing. These approaches have the potential to probe large parts of unexplored parameter space in the next several years. Thus such accelerometers provide radically new avenues for the direct detection of dark matter.

Original languageEnglish (US)
Article number075029
JournalPhysical Review D
Volume93
Issue number7
DOIs
StatePublished - Apr 20 2016
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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