Radiative Neutrino Mass Model at the $e^{-}e^{+}$ Linear Collider
  We study the phenomenology of a Standard Model (SM) extension with two charged singlet scalars and three right handed (RH) neutrinos at an electron-positron collider. In this model, the neutrino mass is generated radiatively at three-loop, the lightest RH neutrino is a good dark matter candidate; and the electroweak phase transition strongly first order as required for baryogenesis. We focus on the process $e^{+}+e^{-}\rightarrow e^{-}\mu^{+}+E_{miss}$, where the model contains new lepton flavor violating interactions that contribute to the missing energy. We investigate the feasibility of detecting this process at future $e^{-}e^{+}$ linear colliders at different center of mass energies: $E_{CM}$=250, 350, 500 GeV and 1 TeV. 
Amine Ahriche (Jijel U. & ICTP, Trieste), Salah Nasri (United Arab   Emirates U. & Oran U.) and Rachik Soualah (INFN Trieste...
hep-ph hep-ex