Predictions for anomalous τ+τ-γ production at LEP 1

We calculate distributions for τ+τ-γ production at LEP 1 taking into account a potentially existing anomalous magnetic moment aτ of the τ lepton. The existing upper limits for vertical stroke aτ vertical stroke are known from the dependence of the decay Z0 → τ+τ-γ on a2τ and are of the order of (1 - 5)%. We show that such limits are also sensitive to linear terms in aτ, which are of equal importance at vertical stroke aτ vertical stroke ∝(1 - 2)% and dominate below this value. Contributions from an electric dipole moment dτ do not interfere with the electromagnetic vertex or with the anomalous magnetic moment. Appropriate formulae are derived. (orig.)