Long-lived charged particles and multilepton signatures from neutrino mass models

Carolina Arbeláez, Giovanna Cottin, Juan Carlos Helo, Martin Hirsch

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Lepton number violation (LNV) is usually searched for by the LHC collaborations using the same-sign dilepton plus jet signature. In this paper, we discuss multilepton signals of LNV that can arise with experimentally interesting rates in certain loop models of neutrino mass generation. Interestingly, in such models, the observed smallness of the active neutrino masses, together with the high multiplicity of the final states, leads in large parts of the viable parameter space of such models to the prediction of long-lived charged particles, which leave highly ionizing tracks in the detectors. We focus on one particular one-loop neutrino mass model in this class and discuss its LHC phenomenology in some detail.

Original languageEnglish
Article number095033
JournalPhysical Review D
Issue number9
StatePublished - 1 May 2020


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