$μ^- \to e^-γ$ in a muonic atom as a probe for effective lepton flavor violating operators involving photon fields
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| Format: | Preprint |
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2024
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| _version_ | 1866912218499514368 |
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| author | Uesaka, Yuichi Yamanaka, Masato Kuno, Yoshitaka |
| author_facet | Uesaka, Yuichi Yamanaka, Masato Kuno, Yoshitaka |
| contents | We propose the $μ^-\to e^-γ$ process in a muonic atom as a novel means to investigate charged lepton flavor violation (CLFV). We demonstrate its sensitivity in probing effective CLFV operators associated with both single and double photon fields. In comparison to $μ^+\to e^+γ$ using free positive muon decays at rest, the emitted electron and photon in $μ^-\to e^-γ$ exhibit non-monochromatic spectra, presenting non-trivial case. We derive the decay rate formula and demonstrate that the potential rate of the process is significant enough to motivate exploration in future muon CLFV experiments. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_10304 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | $μ^- \to e^-γ$ in a muonic atom as a probe for effective lepton flavor violating operators involving photon fields Uesaka, Yuichi Yamanaka, Masato Kuno, Yoshitaka High Energy Physics - Phenomenology We propose the $μ^-\to e^-γ$ process in a muonic atom as a novel means to investigate charged lepton flavor violation (CLFV). We demonstrate its sensitivity in probing effective CLFV operators associated with both single and double photon fields. In comparison to $μ^+\to e^+γ$ using free positive muon decays at rest, the emitted electron and photon in $μ^-\to e^-γ$ exhibit non-monochromatic spectra, presenting non-trivial case. We derive the decay rate formula and demonstrate that the potential rate of the process is significant enough to motivate exploration in future muon CLFV experiments. |
| title | $μ^- \to e^-γ$ in a muonic atom as a probe for effective lepton flavor violating operators involving photon fields |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.10304 |