Excited lepton production at LEP and HERA

  • K. Hagiwara
  • S. Komamiya
  • D. Zeppenfeld


General expressions for single and pair production cross sections of excited leptons (e**,v*) are presented. Specific results are shown for a realisticSU(2)×U(1) invariant model. Pair production ine+e annihilation can measure anomalous magnetic moments of excited leptons. Single production ofe* is dominated by thet-channel γ exchange contribution which makes its detection feasible up to masses just below thee+e c.m. energy. Due to this small |t| enhancement effect, contributions from elastic and resonance scattering inep production ofe* are substantial. Realistic estimates of the excited lepton production cross section at HERA are given


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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • K. Hagiwara
    • 1
  • S. Komamiya
    • 2
  • D. Zeppenfeld
    • 1
  1. 1.Deutsches Elektronen-Synchrotron DESYHamburgFederal Republic of Germany
  2. 2.Physikalisches Institut der UniversitätHeidelbergFederal Republic of Germany

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