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    Alviggi, M.G.; Bay, A.; Berdugo, J.; Biland, A.; Bobbink, G.J.; Böhm, A.; Bourquin, M.; Buijs, A.; Burger, W.J.; Caria, M.; Carlino, G.; Cartacci, A.M.; Castello, R.; Cerrada, M.; Cesaroni, F.; Chamizo, M.; Chen, C.; Chen, G.; Chereau, X.; Chien, C.Y.; Cifarelli, L.; Cindolo, F.; Colijn, A.P.; Colino, N.; Dittmar, M.; Fabbretti, R.; Faccini, R.; Field, J.H.; Filthaut, F.; Fisher, P.H.; Freudenreich, K.; Galaktionov, Yu; Garcia-Abia, P.; Giagu, S.; Gong, Z.F.; Gruenewald, M.W.; He, J.T.; Hofer, H.; Josa-Mutuberria, I.; Kapustinsky, J.S.; Kaur, M.; Kinnison, W.W.; Köngeter, A.; Lapoint, C.; Lassila-Perini, K.; Lebrun, P.; Lecomte, P.; Lee, K.Y.; Le Goff, J.M.; Leiste, R.; Lenti, M.; Levtchenko, P.; Lin, W.T.; Lindemann, B.; Lübelsmeyer, K.; Luci, C.; Lustermann, W.; Maity, M.; Malgeri, L.; Mihul, A.; Möller, M.; Morganti, S.; Müller, S.; Nagy, E.; Nessi-Tedaldi, F.; Pandoulas, D.; Paolucci, P.; Pauss, F.; Pensotti, S.; Rahal-Callot, G.; Read, K.; Reucroft, S.; Riemann, S.; Riles, K.; Rind, O.; Robohm, A.; Romero, L.; Rosier-Lees, S.; Rosselet, Ph; van Rossum, W.; Schneegans, M.; Schoeneich, B.; Schultze, K.; Schwenke, J.; Schwering, G.; Shevchenko, S.; Shukla, J.; Spillantini, P.; Steuer, M.; Strauch, K.; Tully, C.; Vivargent, M.; Völkert, R.; Vorobyov, A.A.; Wang, X.L.; Willmott, C.; Wittgenstein, F.; Wu, S.X.; Zalite, An; Zhou, G.J.

    Physics letters. B, 1996, Letnik: 370, Številka: 1
    Journal Article

    We report on a search for the excited leptons e ∗, μ ∗ , τ ∗ and ν ∗ in e +e − collisions at s = 130-140 GeV using the L3 detector at LEP. No evidence has been found for their existence. From an analysis of the expected pair produced ℓ ∗ℓ ∗ in the channels eeγγ, μμγγ, ττγγ, eeWW, and ννγγ, we determine the lower mass limits at 95% C.L. of 64.7 GeV for e ∗, 64.9 GeV for μ ∗ , 64.2 GeV for τ ∗ , 57.3 GeV (eW decay mode) and 61.4 GeV (νγ decay mode) for ν ∗ . From an analysis of the expected singly produced ℓℓ ∗ in the channels eeγ, μμγ, ττγ, νeW and ννγ, we determine upper limits on the couplings λ m ℓ ∗ up to m ℓ ∗ = 130 GeV .