Search for the charged lepton flavor violating decay $\psi (3686)\to e^{\pm }{\mu }^{\mp }$

BESIII Collaboration, M. Ablikim, M. N. Achasov +695

By analyzing $(2367.0\pm 11.1)\times 10^6$ $\psi (3686)$ events collected in $e^{+}{e}^{-}$ collisions at $\sqrt{s}=3.686\mathrm{GeV}$ with the BESIII detector at the BEPCII collider, we report th…