Search for Baryon and Lepton Number Violating Z0 Decays
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Using data collected with the OPAL detector at LEP, we have searched for the processes e+e- -> Z0 -> p e-, p mu- and the charge conjugate final-states. These would violate the conservation of the baryon-number B, lepton-number L and the fermion-number n = (B+L). No evidence for such decays has been found, and the 95% confidence level upper limits on the partial widths Z0 -> p e and Z0 -> p mu are found to be 4.6 and 4.4 keV respectively.
16 pages, LaTeX, 2 ps figs included, submitted to Physics Letters B
16 pages, LaTeX, 2 ps figs included, submitted to Physics Letters B