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arXiv · hep-ex/0107014

Search for Heavy Isosinglet Neutrino in e+e- Annihilation at LEP

L3 Collaboration
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Abstract

We report on a search for the first generation heavy neutrino that is an isosinglet under the standard SU(2)_L gauge group. The data collected with the L3 detector at center-of-mass energies between 130 GeV and 208 GeV are used.The decay channel N_e --> eW is investigated and no evidence is found for a heavy neutrino, N_e, in a mass range between 80 GeV and 205 GeV. Upper limits on the mixing parameter between the heavy and light neutrino are derived.

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L3 Collaboration. 2001-07-08. Search for Heavy Isosinglet Neutrino in e+e- Annihilation at LEP. https://doi.org/10.1016/s0370-2693(01)00993-5

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