Details

Autor(en) / Beteiligte

• Acciarri, M.
• Adam, A.
• Adriani, O.
• Aguilar-Benitez, M.
• Ahlen, S.
• Alpat, B.
• Alcaraz, J.
• Allaby, J.
• Aloisio, A.
• Alverson, G.
• Alviggi, M.G.
• Ambrosi, G.
• Anderhub, H.
• Andreev, V.P.
• Angelescu, T.
• Antreasyan, D.
• Arefev, A.
• Azemoon, T.
• Aziz, T.
• Bagnaia, P.
• Baksay, L.
• Ball, R.C.
• Banerjee, S.
• Banicz, K.
• Barillere, R.
• Barone, L.
• Bartalini, P.
• Baschirotto, A.
• Basile, M.
• Battiston, R.
• Bay, A.
• Becattini, F.
• Becker, U.
• Behner, F.
• Bencze, Gy.L.
• Berdugo, J.
• Berges, P.
• Bertucci, B.
• Betev, B.L.
• Biasini, M.
• Biland, A.
• Bilei, G.M.
• Blaising, J.J.
• Blyth, S.C.
• Bobbink, G.J.
• Bock, R.
• Bohm, A.
• Borgia, B.
• Boucham, A.
• Bourilkov, D.
• Bourquin, M.
• Boutigny, D.
• Brambilla, Elizabeth
• Branson, J.G.
• Brigljevic, V.
• Brock, I.C.
• Buijs, A.
• Bujak, A.
• Burger, J.D.
• Burger, W.J.
• Burgos, C.
• Busenitz, J.
• Buytenhuijs, A.
• Cai, X.D.
• Campanelli, M.
• Capell, M.
• Cara Romeo, G.
• Caria, M.
• Carlino, G.
• Cartacci, A.M.
• Casaus, J.
• Castellini, G.
• Castello, R.
• Cavallari, F.
• Cavallo, N.
• Cecchi, C.
• Cerrada, M.
• Cesaroni, F.
• Chamizo, M.
• Chan, A.
• Chang, Y.H.
• Chaturvedi, U.K.
• Chemarin, M.
• Chen, A.
• Chen, C.
• Chen, G.
• Chen, G.M.
• Chen, H.F.
• Chen, H.S.
• Chereau, X.
• Chiefari, G.
• Chien, C.Y.
• Choi, M.T.
• Cifarelli, L.
• Cindolo, F.
• Civinini, C.
• Clare, I.
• Clare, R.
• Coan, T.E.
• Cohn, H.O.

Titel

Search for excited leptons in e$^+$e$^-$ annihilation at $\sqrt{s}$ = 130-140 GeV

Ist Teil von

• Physics letters. B, 1996, Vol.370, p.211-221

Ort / Verlag

Elsevier

Erscheinungsjahr

1996

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• We report on a search for the excited leptons e^*,mu^*,tau^* and nu^* in e+e- collisions at sqrt{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 e.e.gamma.gamma, mu.mu.gamma.gamma, tau.tau.gamma.gamma, eeWW, and nu.nu.gamma.gamma, we determine the lower mass limits at 95% C.L. of 64.7 GeV for e^*, 64.9 GeV for mu^*, 64.2 GeV for tau*, 57.3 GeV ( eW decay mode) and 61.4 GeV ( nu.gamma decay mode) for nu^*. From an analysis of the expected singly produced l.l^* in the channels e.e.gamma, mu.mu.gamma, tau.tau.gamma, nu.eW and nu.nu.gamma, we determine upper limits on the couplings lambda/m_{l^*} up to m_{l^*} = 130 GeV