Lepton flavor violation and seesaw models at future lepton colliders

by Dr Yongchao Zhang (Washington University in St Louis)

Thursday 4 Jan 2018, 10:30 → 11:30 Asia/Shanghai

B105 (CHEP)

Many new physics scenarios beyond the Standard Model often necessitate the existence of a (light) neutral scalar H, which might couple to the charged leptons in a flavor violating way, while evading all existing constraints. One well-motivated example is the minimal left-right symmetric model. Such scalars could be effectively produced at future lepton colliders like CEPC, either on-shell or off-shell, and induce lepton flavor violating (LFV) signals. We find that a large parameter space of the scalar mass and the LFV couplings can be probed, well beyond the current low-energy constraints in the lepton sector.