Speaker
Description
In this talk, I will discuss several different scenarios about testing CP-violation at high energy colliders, based on some recent progresses and forthcoming projects from my group. We studied CP-violation effects both from pure bosonic sector and the Yukawa sector. For pure bosonic sector, we considered a heavy Higgs boson produced through VBF process and decaying through Zh(125) channel, whose existence is the evidence of CP-violation. For Yukawa interaction with short-lived particles, we considered a heavy Higgs boson interacting with top quark, whose spin information will be kept in the distribution of its decaying final states. We also firstly proposed testing CP-violation through long-lived particles, with the information of displaced vertices fully taken into account. We studied the interaction between h(125), or a heavy Higgs boson, and long-lived heavy neutrino, which may also relate to neutrino mass generation and leptogenesis mechanisms. Our studies confirm that future colliders (either HL-LHC or CLIC/MuC) show strong power in testing these channels.
