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Search for excited leptons 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 / Natale, Sonia / Pohl, Martin / Straessner, Arno
Published in Physics Letters. B. 2003, vol. 568, no. 1-2, p. 23-34
Abstract A search for charged and neutral excited leptons is performed in 217 pb−1 of e+e− collision data collected with the L3 detector at LEP at centre-of-mass energies from 202 up to 209 GeV. The pair- and single-production mechanisms of excited electrons, muons and taus, as well as of excited electron-, muon- and tau-neutrinos, are investigated and no signals are detected. Combining with L3 results from searches at lower centre-of-mass energies, gives improved limits on the masses and couplings of excited leptons.
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L3 COLLABORATION. Search for excited leptons at LEP. In: Physics Letters. B, 2003, vol. 568, n° 1-2, p. 23-34. doi: 10.1016/j.physletb.2003.05.004 https://archive-ouverte.unige.ch/unige:42648

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Deposited on : 2014-12-05

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