Search for the rare decays $\ddot{I}{€}^{+}\to \hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼\hat{I}½\bar{\hat{I}}½$ and $\ddot{I}{€}^{+}\to e^{+}\hat{I}{½}_e\hat{I}½\bar{\hat{I}}½$

A. Aguilar-Arevalo, M. Aoki, M. Blecher +23

The rare pion decays $\ddot{I}{€}^{+}\to \hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼\hat{I}½\bar{\hat{I}}½$ and $\ddot{I}{€}^{+}\to e^{+}\hat{I}{½}_e\hat{I}½\bar{\hat{I}}½$ are allowed in the Standard Model but highly suppressed. These decays were search…