J. Biebel et T. Riemann, PREDICTIONS FOR ANOMALOUS TAU(-)GAMMA PRODUCTION AT LEP-1()TAU(), Zeitschrift fur Physik. C, Particles and fields, 76(1), 1997, pp. 53-58
We calculate distributions for tau(+)tau(-)gamma production at LEP 1 t
aking into account a potentially existing anomalous magnetic moment al
pha(tau) of the tau lepton. The existing upper limits for Ja,i are kno
wn from the dependence of the decay Z(0) --> tau(+)tau(-)gamma on alph
a(tau)(2) and are of the order of (1-5)%. We show that such limits are
also sensitive to linear terms in alpha(tau), which are of equal impo
rtance at \alpha(tau)\ similar to (1-2)% and dominate below this value
. Contributions from an electric dipole moment d(tau) do not interfere
with the electromagnetic vertex or with the anomalous magnetic moment
. Appropriate formulae are derived.