The measurements of muon g-2, EDM, and muonium at J-PARC*

The muon g−2 experiment at J-PARC is under preparation and targeted to measure the muon anomalous magnetic moment with the precision of 450 ppb and muon electric dipole moment with 1.5 × 10−21 e cm at its first stage. In addition, closely related measurements of muonium (a bound state of a positively charged muon and an electron), is in progress, such as 1s-2s and hyperfine splitting. These measurements will give us the improved value of muon mass and magnetic moment, which is very important parameters to the muon g−2 experiment.

I will briefly introduce the present status and future prospect of these projects.