Single $W$-Boson Production in $eγ$ Collisions

Abstract

We studied single $W$ boson production in high energy $eγ$ collisions and the sensitivity of various observables to the $WWγ$ vertex. We included gauge boson decay to final state fermions and all contributions to the same final state. The contributions of the non-resonant diagrams and their interference with the resonant gauge boson production diagrams give significant contributions which should not be neglected. We present results for $W$ production at a 500 GeV $e^+e^-$ collider with the photon spectra obtained from a backscattered laser.