Lepton Number Violation from Colored States at the LHC

Details Lepton Number Violation from Colored States at the LHC Lepton Number Violation from Colored States at the LHC

2010-10-27

arxiv.org/abs/1010.5802v2

JHEP 1101:046,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

minor corrections, added references

Scientific paper

10.1007/JHEP01(2011)046

The possibility to search for lepton number violating signals at the Large Hadron Collider (LHC) in the colored seesaw scenario is investigated. In this context the fields that generate neutrino masses at the one-loop level are scalar and Majorana fermionic color-octets of SU(3). Due to the QCD strong interaction these states may be produced at the LHC with a favorable rate. We study the production mechanisms and decays relevant to search for lepton number violation signals in the channels with same-sign dileptons. In the simplest case when the two fermionic color-octets are degenerate in mass, one could use their decays to distinguish between the neutrino spectra. We find that for fermionic octets with mass up to about 1 TeV the number of same-sign dilepton events is larger than the standard model background indicating a promising signal for new physics.

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