17–24 Jul 2024
Prague
Europe/Prague timezone

A search for muon-to-electron conversion at J-PARC : The COMET experiment

18 Jul 2024, 12:15
15m
South Hall 1B

South Hall 1B

Parallel session talk 05. Quark and Lepton Flavour Physics Quark and Lepton Flavour Physics

Speaker

Hajime Nishiguchi

Description

The COMET Experiment at J-PARC aims to search for the lepton-flavour violating process of muon to electron conversion in a muonic atom, $\mu^{-}N\rightarrow\mathrm{e}^{-}N$, with a 90% confidence level branching-ratio limit of $6\times 10^{-17}$, in order to explore the parameter region predicted by most well-motivated theoretical models beyond the Standard Model. In order to realize the experiment effectively, a staged approach to deployment is employed; COMET Phase-I & II. At the Phase-I experiment, a precise muon-beam measurement will be conducted, and a search for $\mu^{-}N\rightarrow\mathrm{e}^{-}N$ will also be carried out with an intermediate sensitivity of $7\times 10^{-15}$ (90% CL upper limit).

The dedicated proton beam-line was recently completed and its commissioning run (COMET Phase-$\alpha$) was successfully conducted in 2023. In this paper, the construction status and some prospects of the experiment are presented in addition to the experimental overview.

Alternate track 03. Beyond the Standard Model
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