Search for excited leptons at LEP

2003/06/05 by P. Achard, L3 Collaboration, O. Adriani +98
Physics and Astronomy · #Atomic physics #Dark Matter and Cosmic Phenomena #Detector #Electron #Excited state #Lepton #Muon #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ex

paper · pdf · doi:10.1016/j.physletb.2003.05.004

published as Phys.Lett.B568:23-34,2003

arxiv created 2003/06/05 · openalex publication_date 2003/07/16 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

A search for charged and neutral excited leptons is performed in 217 pb^-1 of e+e- collision data collected with the L3 detector at LEP at centre-of-mass energies from 202 GeV up to 209 GeV. The pair- and single-production mechanisms of excited electrons, muons and taus, as well as of excited electron-, muon- and tau-neutrinos,are investigated and no signals are detected. Combining with L3 results from searches at lower centre-of-mass energies, gives improved limits on the masses and couplings of excited leptons.

Citations

• BHWIDE 1.00: O(α) YFS exponentiated Monte Carlo for Bhabha scattering at wide angles for LEP1/SLC and LEP2
• Searches for excited fermions in ep collisions at HERA
• The L3 silicon microvertex detector
• A Model of Leptons
• Search for excited neutrinos at HERA
• The precision Monte Carlo event generator for two-fermion final states in collisions
• Partial-symmetries of weak interactions
• Search for unstable heavy and excited leptons at LEP2
• Review of particle properties