$\tau$ Anomalous Couplings and Radiation Zeros in the $e^{+}{e}^{-}\to \tau \bar{\tau }\gamma$ process

I. Rodriguez, O. A. Sampayo

The process $e^{+}{e}^{-}\to \tau \bar{\tau }\gamma$ contains configurations of the four-momenta for which the scattering amplitude vanishes (Radiation Zeros or Null Zone). These Radiation Zeros only…