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Search for heavy isosinglet neutrino in e+e annihilation at LEP

CollaborationWith : Achard, Pablo / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Echenard, Bertrand / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Malgeri, Luca / Pohl, Martin
Published in Physics Letters. B. 2001, vol. 517, no. 1-2, p. 67-74
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 Ne→eW is investigated and no evidence is found for a heavy neutrino, Ne, 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. Search for heavy isosinglet neutrino in e+e annihilation at LEP. In: Physics Letters. B, 2001, vol. 517, n° 1-2, p. 67-74. doi: 10.1016/S0370-2693(01)00993-5 https://archive-ouverte.unige.ch/unige:43924

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Deposited on : 2014-12-19

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