Journal article
Search for excited neutrinos in Z decay
D Decamp, B Deschizeaux, C Goy, JP Lees, MN Minard, R Alemany, JM Crespo, M Delfino, E Fernandez, V Gaitan, L Garrido, P Mato, R Miguel, LM Mir, S Orteu, A Pacheco, JA Perlas, E Tubau, MG Catanesi, D Creanza Show all
Physics Letters B | Published : 1990
Abstract
Excited neutrinos decaying into a neutrino and a photon are searched for in the ALEPH detector at LEP. No evidence is found for Z decay into v̄v* or v̄*v* final states. Upper limits are derived on excited neutrino couplings up to excited neutrino masses close to the Z mass. Lower limits on the v* mass, independent of the v* decay modes, are deduced from the total Z width. © 1990.
Grants
Awarded by National Science Foundation