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SEARCH FOR ISOSINGLET NEUTRAL HEAVY-LEPTONS IN Z0 DECAYS

Abstract:
We search for neutral heavy leptons that are isosinglets under the standard SU (2)L gauge group. Such neutral heavy leptons are expected in many extensions of the standard model. Three types of heavy leptons Ne, Nμ, Nτ associated with the three neutrino types ve, vμ, vτ have been directly searched for and no evidence for a signal has been found. We set the limit Br(NSu0 → vℓNℓ) < 3 x 10-5 at the 95% CL for mass range from 3 GeV up to Mz. © 1992.
Publication status:
Published

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Journal:
PHYSICS LETTERS B
Volume:
295
Issue:
3-4
Pages:
371-382
Publication date:
1992-12-03
DOI:
ISSN:
0370-2693
URN:
uuid:4ab25c27-611c-4dbc-9323-2142993f819e
Source identifiers:
18917
Local pid:
pubs:18917

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