Heavy neutrino searches via same-sign lepton pairs at a Higgs boson factory
Heavy neutrino searches via same-sign lepton pairs at a Higgs boson factory
This paper investigates the ${e}^{\ensuremath{-}}{e}^{+}\ensuremath{\rightarrow}Z{h}_{1}$ sensitivity for a Higgs boson's rare decay into heavy neutrinos ${h}_{1}\ensuremath{\rightarrow}NN$ at the proposed electron-positron collider, with the focus on multilepton final states that contain same-sign lepton pairs. ${h}_{1}\ensuremath{\rightarrow}NN$ decay can derive from Higgs bosons mixing with new physics scalar(s) in a way that is …