[sém. théorie] Mixed Higgs-Radion States at the LHC

by Tousik Samui (TIFR Mumbai)

Thursday 15 Jun 2017, 11:00 → 12:00 Europe/Paris

Grande salle de conseil

Light radions constitute one of the few surviving possibilities for observable new particle states at the sub-TeV level which arise in models with extra spacetime dimensions. The properties of 125 GeV scalar discovered at LHC closely resemble with Standard Model Higgs boson and it is unlikely to be a pure radion state. However there is a possibility that it could be a mixed state of Standard Model Higgs boson and radion state. I will talk about our study based on the possibility of Higgs and radion mixing scenario using the existing LHC data at 8 and 13 TeV. We also make a detailed study of the so-called `conformal point', where this heavy state practically decouples from (most of) the Standard Model fields.