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Search for Charged Lepton Flavor Violation at J-PARC — COMET Phase-II experiment
by
Ting-Sam Wang
→
Asia/Shanghai
B326 (IHEP)
B326
IHEP
Description
Abstract:
The Coherent Muon to Electron Transition (COMET) is an experiment at the Japan Proton Accelerator Research Complex (J-PARC) in Tokai. It will search for a Charged Lepton Flavour Violation (CLFV) process by capturing muons in Aluminium (Al) targets. The muon captured by the Al nucleus is then converted into a mono-energetic electron with a momentum of 105 MeV/c (μ-e conversion).
This CLFV process is highly suppressed in the Standard Model with Massive Neutrinos with a branching ratio at the order of O(10e-54). COMET Phase-II aims to probe this process at a single event sensitivity of O(10e-17), which is 10,000 times better than the current limit. Observing this process would therefore be a clear sign of new physics. Furthermore, many extensions of the SM predict that it might occur at a rate that COMET can reach.
