Search for excited leptons in e+e- collisions at sqrt{s}=189-209 GeV

Abstract

A search for excited lepton production in e+e- collisions was performed using the data collected by the DELPHI detector at LEP at centre-of-mass energies ranging from 189 GeV to 209 GeV, corresponding to an integrated luminosity of approximately 600 pb^{-1}. No evidence for excited lepton production was found. In searches for pair-produced excited leptons, lower mass limits were established in the range 94 - 103 GeV/c^2, depending on the channel and model assumptions. In searches for singly-produced excited leptons, upper limits on the parameter f/Lambda were established as a function of the mass.

arXiv comment31 pages, 12 figures, Accepted by Eur. Phys. J. C

References in corpus (8)

• High-Energy-Physics Event Generation with PYTHIA 6.1
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• BHWIDE 1.00: O(alpha) YFS Exponentiated Monte Carlo for Bhabha Scattering at Wide Angles for LEP1/SLC and LEP2
• Photon Events with Missing Energy in e+e- Collisions at sqrt{s} = 130 to 209 GeV
• WPHACT 1.0 - A program for $WW$, Higgs and 4 fermion physics at $e^{+}{e}^{-}$ colliders
• New Fermions at e${}^{+}$e${}^{-}$ Colliders: I. Production and Decay
• Search for Excited Electrons at HERA
• Determination of the e+e- -> gamma gamma (gamma) cross-section at LEP 2

Cited by in corpus (12)

• Exclusive excited leptons search in two lepton final states at the CERN-LHC
• Search for excited electrons and muons in sqrt(s)=8 TeV proton-proton collisions with the ATLAS detector
• Search for excited leptons in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Search for Excited and Exotic Muons in the mu+gamma Decay Channel in p-pbar Collisions at sqrt{s} = 1.96 TeV
• A search for excited leptons in pp Collisions at sqrt(s) = 7 TeV
• A Search for Excited Neutrinos in e-p Collisions at HERA
• Search for excited electrons singly produced in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS experiment at the LHC
• Excited Quarks Production at FCC and S$pp$C $pp$ Colliders
• A search for an excited muon decaying to a muon and two jets in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• QCD corrections to excited lepton (pair) production at LHC
• Collider imprint of vector-like leptons in light of anomalous magnetic moment and neutrino data
• Effect of the excited and fourth generation leptons in lepton flavor violating μ^{-} \to e^{-}2γdecay