Speaker
Description
Mu3e is a dedicated experiment to search the rare charged lepton flavor violating (cLFV) decay $\mu^{+} \rightarrow{} e^{+}e^{-}e^{+}$ with a sensitivity down to $10^{-16}$ under construction at PSI. In the Standard Model, this decay is heavily suppressed with a branching fraction of $10^{-54}$. The Mu3e experiment will be able to reconstruct low momentum electrons and positrons from rare $\mu$ decays. Mu3e apparatus consists of a tracking detector based on monolithic active pixel sensors for very precise momentum and vertex reconstruction, combined with scintillating fibers and tiles for very high timing measurements. The motivation for the $\mu^{+} \rightarrow{} e^{+}e^{-}e^{+}$ search will be presented, along with experimental design and subsequent expected sensitivity.