Letter Of Intent for a future $\hat{I}{¼}^{+}\to {\mathrm{e}}^{+}{\hat{I}}^3$ experiment at the High Intensity Muon Beam facility at PSI

Paolo Walter Cattaneo, Wataru Ootani, Francesco Renga +61

Searches for charged lepton flavor violation in the muon sector stand out among the most sensitive and clean probes for physics beyond the Standard Model. Currently, $μ^+ \to \mat…