Future muon colliders could probe heavy Majorana neutrino masses via t-channel vector boson fusion, with projected exclusions in the (mass, mixing) plane from cut-based and BDT analyses.
A novel search strategy for right-handed charged gauge bosons at the Large Hadron Collider
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abstract
We explore the potential of the Large Hadron Collider (LHC) in detecting a signal originating from the production of a heavy $SU(2)_R$ charged gauge boson that then decays into a top-bottom quark pair via the mediation of a right-handed neutrino, $p p \to W_R \to N_R \ell \to (\ell' t b)\ell$. Such a channel, that we study in the context of the minimal Left-Right Symmetric Model, contrasts with conventional smoking-gun signatures targeted experimentally and phenomenologically in which only light quarks are involved. We propose a selection strategy aimed at extracting such a top-bottom signal and we estimate the resulting sensitivity of the LHC to the model. Our results demonstrate the potential impact of such a search and we therefore urge the experimental collaborations to carry out a similar analysis in the light of present and future data.
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Vector Boson Fusion Signatures of Superheavy Majorana Neutrinos at Muon Colliders
Future muon colliders could probe heavy Majorana neutrino masses via t-channel vector boson fusion, with projected exclusions in the (mass, mixing) plane from cut-based and BDT analyses.