Higgs as a probe of new physics

by Prof. Shinya Kanemura (Toyama U.)

Wednesday 14 Sept 2016, 14:00 → 15:00 Europe/Paris

Grande salle de conseil

We first discuss how we can identify new physics models from future precision measurement of the Higgs boson couplings at ILC or other lepton colliders. By detecting the pattern in deviation in the Higgs boson couplings, we may be able to fingerprint the new physics model indirectly. The second subject is for the Higgs potential. In order to obtain information for the nature of EWSB, the precise determination of the triple Higgs boson coupling is clearly important. We discuss some examples of new physics models where a large hhh coupling is predicted. The physics of the hhh coupling is also very important for the scenario of electroweak baryogenesis, which requires the 1st order electroweak phase transition. We discuss the correlation between the dynamics of the 1st order phase transition and the deviation in the hhh coupling in an extended Higgs sectors. We also discuss predicted gravitational waves from 1st order phase transition. We also discuss some synergy between precision measurements of the hhh measurement at future colliders and of the gravitational waves at future GW interferometers.