Adriani, O. ; Aguilar-Benitez, M. ; Ahlen, S. ; Gurtu, A. ; et., al (1992) Search for isosinglet neutral heavy leptons in Z0 decays Physics Letters B, 295 (3-4). pp. 371-382. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0370-2693(92)91579-X
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 → vℓ , Nℓ) < 3 x 100 at the 95% CL for mass range from 3 GeV up to Mz.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83339 |
| Deposited On: | 20 Feb 2012 06:20 |
| Last Modified: | 20 Feb 2012 06:20 |
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