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arXiv · 1904.07257

Exotic coloured fermions and lepton number violation at the LHC

E. Carquin·J. C. Helo·M. Hirsch·N. A. Neill
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Abstract

Majorana neutrino mass models with a scale of lepton number violation (LNV) of order TeV potentially lead to signals at the LHC. Here, we consider an extension of the standard model with a coloured octet fermion and a scalar leptoquark. This model generates neutrino masses at 2-loop order. We make a detailed MonteCarlo study of the LNV signal at the LHC in this model, including a simulation of standard model backgrounds. Our forecast predicts that the LHC with 300/fb should be able to probe this model up to colour octet fermion masses in the range of (2.6-2.7) TeV, depending on the lepton flavour of the final state.

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E. Carquin, J. C. Helo, M. Hirsch, N. A. Neill. 2019-04-15. Exotic coloured fermions and lepton number violation at the LHC. https://doi.org/10.1103/physrevd.99.115028

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