A search for new leptons

H. J. Behrend, J. Bürger, L. Criegee, J. B. Dainton, J. H. Field, G. Franke, H. Jung, J. Meyer, V. Schröder, U. Timm, G. G. Winter, W. Zimmermann, P. J. Bussey, C. Buttar, A. J. Campbell, D. Hendry, G. McCurrach, J. M. Scarr, I. O. Skillicorn, K. M. SmithJ. Ahme, V. Blobel, M. Feindt, H. Fenner, J. Harjes, J. H. Peters, M. Poppe, H. Spitzer, W. D. Apel, A. Böhrer, J. Engler, G. Flügge, D. C. Fries, J. Fuster, K. Gamerdinger, P. Grosse-Wiesmann, J. Hansmeyer, G. Hopp, J. Knapp, M. Krüger, H. Küster, P. Mayer, H. Müller, K. H. Ranitzsch, H. Schneider, J. Wolf, W. de Boer, G. Buschhorn, G. Grindhammer, B. Gunderson, Ch Kiesling, R. Kotthaus, H. Kroha, D. Lüers, H. Oberlack, P. Schacht, S. Scholz, G. Shooshtari, W. Wiedenmann, M. Davier, J. F. Grivaz, J. Haissinski, P. Janot, V. Journé, D. W. Kim, F. Le Diberder, A. Spadafora, J. J. Veillet, K. Blohm, R. George, M. Goldberg, O. Hamon, F. Kapusta, F. Kovacs, L. Poggioli, M. Rivoal, G. d'Agostini, F. Ferrarotto, M. Gaspero, B. Stella, R. Aleksan, G. Cozzika, Y. Ducros, P. Jarry, Y. Lavagne, F. Ould Saada, F. Pierre, J. Záček, G. Alexander, G. Bella, Y. Gnat, J. Grunhaus, A. Klatchko, A. Levy, C. Milsténe

Research output: Contribution to journalArticlepeer-review


A search for new leptons, charged and neutral, produced in e+e- collisions at an average c.m. energy of 44.2 GeV, has been carried out with the CELLO detector at PETRA. No such particles have been observed: we exclude pair production of new charged leptons at the 95% C.L. in the mass range 1.5-22.0 GeV/c2 and of neutral leptons in the mass range 3.1-18.0 GeV/c2. Single production of a heavy neutrino together with a standard neutrino has also been studied; we exclude an electron-like neutral lepton in the mass ranges 0.6-34.6 GeV/c2 for V-A coupling to the W boson, and 0.4-37.4 GeV/c2 for V+A coupling.

Original languageEnglish
Pages (from-to)7-16
Number of pages10
JournalEuropean Physical Journal C
Issue number1
StatePublished - Mar 1988


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