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 11 orders of magnitude feebler than existing astrophysical and
laboratory bounds. Ongoing experiments with muonium can also probe forces
associated with the exchange of virtual ultralight scalar bosons between muons
and standard-model particles, offering up to 6 orders of magnitude improvement
in sensitivity over complementary astrophysical and laboratory bounds.
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