Status and prospects of J-PARC KOTO experiment

The J-PARC KOTO experiment was designed to observe the rare decay of long lived neutral kaons, KL→π0νν¯. The goal of KOTO is to observe the decay with the sensitivity of the Standard Model prediction, and search for new physics beyond the Standard Model. The KOTO apparatus consists of a high intensity KL beam line, an electromagnetic calorimeter, and veto counters. The beam line and the calorimeter have already been built at J-PARC, and the veto counters are being constructed and tested for upcoming physics runs. In this paper, the KOTO experiment will be briefly introduced and the status and the prospects of the KOTO experiment will be described.