Journal article
Charged particle pair production associated with a lepton pair in Z decays. indication of an excess in the tau channel
D Decamp, B Deschizeaux, C Goy, JP Lees, MN Minard, R Alemany, JM Crespo, M Delfino, E Fernandez, V Gaitan, L Garrido, LM Mir, A Pacheco, MG Catanesi, D Creanza, M de Palma, A Farilla, G Iaselli, G Maggi, M Maggi Show all
Physics Letters B | Published : 1991
Abstract
In a sample of 200 000 Z decays, events with two leptons and an additional pair of charged particles are studied. The 35 events found show a possible excess in the tau channel compared with the expectation from electroweak processes. The features of the events are consistent with radiation of virtual photons. © 1991.
Grants
Awarded by National Science Foundation