Speaker
Xudong Yu
(Peking U)
Description
The charged Lepton Flavor Violation (cLFV) is highly suppressed in the Standard Model (SM) by the finite but tiny neutrino masses. Its branching fraction is calculated to be at a negligible level and so far, none has been found in experiments, including searches in lepton ($\mu$, $\tau$) decays, pseudoscalar meson (K, $\pi$) decays, vector meson ($\phi$, $J/\psi$, $\Upsilon$) decays, and Higgs decays etc. This talk presents the charged Lepton Flavor Violation searches at the BESIII experiment. The $J/psi-> e tau/e mu$ is searched for with 10 billion $J/\psi$ events collected by BESIII and the result improves the previously published limit by two orders of magnitude.
Primary authors
Beijiang Liu
(Institute of High Energy Physics, Chinese Academy of Sicences)
Xudong Yu
(Peking U)