Status of $K_L^0 \rightarrow \pi^0 \gamma \gamma$ in the KOTO Experiment at J-PARC
August 02, 2019
A preliminary report on the study of the rare decay $K_L^0 \rightarrow \pi^0 \gamma \gamma$ at the J-PARC KOTO experiment was presented. We introduced a new trigger that counts the number of electromagnetic showers in the CsI calorimeter. By analyzing the data collected in 2017, the estimated number of signal events is 187.
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