Kavli Affiliate: Yevgeny V. Stadnik
| First 5 Authors: Yevgeny V. Stadnik, , , ,
| Summary:
Ultralight scalar dark matter may induce apparent oscillations of the muon
mass, which may be directly probed via temporal shifts in the spectra of
muonium and muonic atoms. Existing datasets and ongoing spectroscopy
measurements with muonium are capable of probing scalar-muon interactions that
are up to 12 orders of magnitude more stringent than astrophysical bounds.
Ongoing free-fall experiments with muonium can probe forces associated with the
exchange of virtual ultralight scalar bosons between muons and standard-model
particles, offering up to 5 orders of magnitude improvement in sensitivity over
complementary laboratory and astrophysical bounds.
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