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$μ$-$e$ conversion experiments at J-PARC

by N. Teshima

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Submission summary

Authors (as registered SciPost users): Natsuki Teshima
Submission information
Preprint Link:  (pdf)
Date accepted: 2019-01-08
Date submitted: 2018-12-05 01:00
Submitted by: Teshima, Natsuki
Submitted to: SciPost Physics Proceedings
Proceedings issue: The 15th International Workshop on Tau Lepton Physics (TAU2018)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Experiment
Approach: Experimental


There are two plans of experiments to search for muon to electron ($\mu$-$e$) conversion at J-PARC, which are called DeeMe and COMET. The $\mu$-$e$ conversion is one of the charged lepton flavor violation processes. The processes are forbidden in the Standard Model, but some theories beyond the Standard Model predict relatively large branching ratios at orders of $10^{-12}$ to $10^{-17}$. DeeMe will be conducted with a sensitivity of $1\times10^{-13}$ using a carbon target for 1 year, and COMET will be done with that of $3\times10^{-15}$ in Phase-I. In this article, the current status of these two experiments will be presented.

Published as SciPost Phys. Proc. 1, 039 (2019)

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