Model identification in μ?→e? conversion with invisible boson emission using muonic atoms

摘要

In this article, we investigate the μ ? → 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 end point. Our findings show that future experiments using muonic atoms are helpful to identify the properties of exotic bosons.