2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37327Heavy excited electrons and neutrinos have been sought by the H1 and ZEUS experiments at HERA. For the e* (nu*) searches, 120 pb^-1 (16 pb^-1) of ep collision data have been analysed. No evidence for any excited lepton has been found, and limits on the characteristic couplings have been derived.Presented at X International Workshop on Deep Inelastic Scattering, Cracow, Poland, April 30 - May 4, 2002; submitted to Acta Phys. Pol. B; 5 pages, 4 figuresHigh Energy Physics - Experimenttext