Effects of excited electron and contact $ee\gamma \gamma$ interaction in $e^{+}{e}^{-}\to \gamma \gamma$ reaction

Gakh G. I., Konchatnij M. I., Merenkov N. P. +1

The differential cross section and some polarization observables have been calculated for the $e^{+}{e}^{-}\to \gamma \gamma$ reaction taking into account the contribution of the heavy excited…