Abstract submitted to the
         XXXth International Conference on High Energy Physics
                July 27 - August 2, 2000, Osaka, Japan
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                Search for excited fermions in ep collisions at HERA

                    
                               ZEUS Collaboration





                                    Abstract


Heavy excited states of electrons and quarks have been searched for in e^+p
collisions at a centre-of-mass energy of 300 GeV with the ZEUS detector at
HERA using an integrated luminosity of 47.7 pb^-1.
Excited neutrinos have been sought in e^-p collisions at a centre-of-mass
energy of 318 GeV using an integrated luminosity of 16 pb^-1.
No evidence for any such states was found
and limits were placed on the characteristic couplings.