A new search for the $K_L\to {\pi }^0\nu \overline{\nu }$ and $K_L\to {\pi }^0{X}^0$ decays

J. K. Ahn, K. Y. Baek, S. Banno +87

We searched for the $CP$-violating rare decay of neutral kaon, $K_L\to {\pi }^0\nu \overline{\nu }$, in data from the first 100 hours of physics running in 2013 of the J-PARC KOTO experimen…