Possible Discovery Channel for New Charged Leptons at the LHC

Details Possible Discovery Channel for New Charged Leptons at the LHC Possible Discovery Channel for New Charged Leptons at the LHC

2009-03-18

arxiv.org/abs/0903.3177v3

J.Phys.G36:095002,2009; Erratum-ibid.G37:059801,2010

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 4 figures. v2 update includes an estimate of the backgrounds, consideration of the EW oblique parameters, and minor

Scientific paper

10.1088/0954-3899/36/9/095002 10

We propose a channel for the possible discovery of new charged leptons at the Large Hadron Collider. The proposed final state contains three same-sign leptons, making this new channel practically back- groundless. The method is illustrated for two different cases: the four-family Standard Model and the Grand Unified Theory based on the E6 gauge group. An example study taking 250 GeV as the charged lepton mass shows that in both models, about 8 signal events can be expected at 14 TeV center-of-mass energy with 1 fb^-1 of integrated luminosity. Although the event yield might not be sufficient for detailed measurements of the charged lepton properties, it would be sufficient to claim discovery through a counting experiment.

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