Search for single electrons from supersymmetric-particle production

A search for single electrons produced by the decay of singly produced supersymmetric electrons (e) or W's (W) within the MAC detector at the SLAC storage ring PEP has been performed in e+e- annihilations at √s = 29 GeV. No evidence of supersymmetric-particle production is observed in a data sample with an integrated luminosity of 206 pb/sup -1/. Limits on possible masses of supersymmetric electrons and photons (gamma) are presented. The e mass limit is m/sub e/>24.5 GeV/c2 at the 90% confidence level if m/sub e//sub >//sub L//sub =/ = m/sub e//sub =/ and m/sub gamma/ = 0. If m/sub e//sub >//sub L//sub =/>>m/sub e//sub =/, the corresponding limit is m/sub e//sub >//sub R//sub =/>23.3 GeV/c2. Limits on possible masses of supersymmetric W's and neutrino's (nu) are also presented. The W mass limit is m/sub W/>22.0 GeV/c2 at the 90% confidence level if m/sub nu/ = 0