Excited Leptons at the CERN Large Hadron Collider

Abstract

We analyze the potential of the CERN Large Hadron Collider (LHC) to search for excited spin-1/2 electrons and neutrinos. Assuming a SU(2)_L X U(1)_Y invariant model, we study in detail the single production of excited electrons and neutrinos and respective backgrounds through the reactions p p -> e+ e- V and e+- νV with V=photon, W, or Z. We show that the LHC will be able to tighten considerably the direct constraints on these possible new states, probing excited lepton masses up to 1-2 TeV depending on their couplings to fermions and gauge bosons.

15 pages, 7 figures

References in corpus (5)

• Searches for excited fermions in ep collisions at HERA
• A Search for Excited Fermions at HERA
• Search for Unstable Heavy and Excited Leptons at LEP2
• Search for Excited Leptons in e+ e- Interactions at sqrt(s)=192 - 202 GeV
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Cited by in corpus (16)

• A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector
• Right-handed neutrino magnetic moments
• Exclusive excited leptons search in two lepton final states at the CERN-LHC
• Phenomenology of excited doubly charged heavy leptons at LHC
• Excited muon searches at the FCC based muon-hadron colliders
• Single production of excited electrons at future e^-e^+, ep and pp colliders
• Analysis of excited neutrinos at the CLIC
• Single production of excited neutrinos at future e^{+}e^{-}, ep and pp colliders
• Production of Excited Neutrino at LHC
• The signatures of doubly charged leptons in future linear colliders
• The Two Scales of New Physics in Higgs Couplings
• Single production of excited spin-3/2 neutrinos at linear colliders
• Excited Quarks Production at FCC and S$pp$C $pp$ Colliders
• QCD corrections to excited lepton (pair) production at LHC
• Effect of the excited and fourth generation leptons in lepton flavor violating μ^{-} \to e^{-}2γdecay
• The impact of excited neutrinos on $\nu \bar{\nu }\to \gamma \gamma$ process