Model identification in ${\mu }^{-}\to e^{-}$ conversion with invisible boson emission using muonic atoms

Abstract

In this article, we investigate the ${\mu }^{-}\to e^{-}X$ process in a muonic atom, where $X$ is a light neutral boson. By calculating the spectrum of the emitted electron for several cases, we discuss the model-discriminating power of the process. We report the strong model dependence of the spectrum near a high-energy endpoint. Our findings show that future experiments using muonic atoms are helpful to identify the properties of exotic bosons.

arXiv comment9 pages, 7 figures

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Cited by in corpus (4)

• Looking forward to Lepton-flavor-violating ALPs
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• Searching for new physics at $\mu \to e$ facilities with ${\mu }^{+}$ and ${\pi }^{+}$ decays at rest
• Searching for the dark sector in two-body anti-muon decay with the polarization of monochromatic positrons