AUTHOR=Lee MyeongJae 

TITLE=COMET Muon Conversion Experiment in J-PARC

JOURNAL=Frontiers in Physics

VOLUME=6

YEAR=2018

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2018.00133

DOI=10.3389/fphy.2018.00133

ISSN=2296-424X

ABSTRACT=<p>COMET is an experiment at J-PARC, Japan, which will search for neutrinoless conversion of muons into electrons in the field of a nucleus (μ− + <italic>N</italic> → <italic>e</italic>− + <italic>N</italic>); a lepton flavor violating process. The experimental sensitivity goal for this process is order of 10<sup>−15</sup> for Phase-I and 10<sup>−17</sup> for Phase-II experiment, which is a factor of 100–10,000 improvements correspondingly over existing limits. Recent progresses in facility and detector development are presented, along with COMET Phase-I and Phase-II experimental schedule.</p>