Current Status and Prospects of the COMET Experiment at J-PARC

The COMET experiment at J-PARC is designed to search for the neutrinoless, coherent conversion of a muon to an electron in the field of a nucleus (μ-N→e-N), a process that violates charged lepton flavor conservation and is forbidden in the Standard Model. The experiment aims to reach a single-event sensitivity of O(10^-17), improving the current upper limit by four orders of magnitude. To achieve this, COMET utilizes a system of superconducting solenoids. Before full implementation, including the electron transport magnet, the experiment will begin with an initial stage to study the detailed characteristics of the muon beam, along with conducting detection of 105 MeV/c electrons. Even at this stage, a sensitivity of 10^-15 is expected, already achieving 100 times better than the previous experiment. This contribution presents the current status and progress of the construction, and outlines the future plan toward achieving full sensitivity.