Search for Excited Leptons at 130 - 140 GeV

A search for the radiative decay of excited charged leptons, $\ls$, and for radiative and weak decays of excited electron neutrinos, $\nu_e^*$, is performed, using the 5.8~$\ipb$ of data collected by ALEPH at $130-140\gev$. No evidence for a signal is found in single or pair production. Excluded mass limits from pair production are close to 65$\gevcc$ for all excited lepton species. Limits on the couplings, $\lambda/m_{\ls}$, of excited leptons are derived from single production. For an excited lepton mass of 130$\gevcc$, these limits are 0.04$\gev^{-1}$ for $\mu^*$ and $\tau^*$, and 0.0007$\gev^{-1}$ for e$^*$. For $\nu_e^*$, the limit is at the level of 0.03$\gev^{-1}$ for a mass of 120$\gevcc$, independent of the decay branching ratios.