Search for excited leptons at 130-GeV - 140-GeV

Buskulic, D. and Finch, Alexander (1996) Search for excited leptons at 130-GeV - 140-GeV. Physics Letters B, 385 (1-4). pp. 445-453. ISSN 0370-2693

Full text not available from this repository.

Abstract

A search for the radiative decay of excited charged leptons, ℓ∗, and for radiative and weak decays of excited electron neutrinos, , is performed, using the 5.8 pb−1 of data collected by ALEPH at 130–140 GeV. No evidence for a signal is found in single or pair production. Excluded mass limits from pair production are close to 65 GeV/c2 for all excited lepton species. Limits on the couplings, , of excited leptons are derived from single production. For an excited lepton mass of 130 GeV/c2, these limits are 0.04 GeV−1 for μ∗ and τ∗, and 0.0007 GeV−1 for e∗. For , the limit is at the level of 0.03 GeV−1 for a mass of 120 GeV/c2, independent of the decay branching ratios.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
64039
Deposited By:
Deposited On:
14 May 2013 13:56
Refereed?:
Yes
Published?:
Published
Last Modified:
03 Jun 2020 01:51