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Search for excited leptons at 130–140 GeV

D. Buskulic
•
I. De Bonis
•
D. Decamp
altro
G. Zobernig
1996
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
A search for the radiative decay of excited charged leptons, L*, and for radiative and weak decays of excited electron neutrinos, ν*e, 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, λ/mL*, of excited leptons are derived from single production. For an excited lepton mass of 130GeV/c2, these limits are 0.04 GeV-1 for μ* and τ*, and 0.0007 GeV-1 for e*. For ν*e, the limit is at the level of 0.03 GeV-1 for a mass of 120 GeV/c2, independent of the decay branching ratios.
DOI
10.1016/0370-2693(96)00961-6
WOS
WOS:A1996VL38900067
Archivio
http://hdl.handle.net/11368/2563310
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0042595364
Diritti
metadata only access
Soggetti
  • ALEPH Experiment

Web of Science© citazioni
32
Data di acquisizione
Mar 27, 2024
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