PROBING THE MAJORANA NEUTRINO NATURE AT THE CURRENT AND FUTURE COLLIDERS

摘要

We present the phenomenology of class of neutrino mass models as an extension of the Standard Model (SM) with charged singlet scalars and three right handed neutrinos. Probing this class of radiative neutrino mass models provides simultaneous explanations for neutrino masses and Dark Matter. The neutrino mass in these models is generated radiatively at three-loop, the lightest right handed neutrino is a good dark matter candidate, and the electroweak phase transition strongly first order as required for baryogenesis. In the presented works, comprehensive physics analyses at lepton-lepton, lepton-hadron as well as proton-proton colliders (such as the ILC, FCC-ee, FCC-eh, LHC and FCC-hh) were carried-out for detecting any possible significant signatures of one of the most striking extensions of the SM that can shed some light on Dark Matter (DM) nature. Along this line, we study different physics processes like: e~-e~-(e~+) → l_αl_β + E (α,β = e,μ) and e~-p → l~±l~±l~± + E + jet (l = e, μ) at center of mass energies s~(1/2)=250 GeV, 350 GeV, 500 GeV, 1 TeV in addition to pp → l~±l~± + E with 8 and 14 TeV LHC energies.