Single W production in e − γ collisions through the decay lepton spectrum to probe γ WW couplings

Abstract

We investigate the effect of anomalous W W γ couplings in the eγ → νW through the angular and energy spectrum of the secondary leptons. Within the narrow-width approximation, a semi-analytical study of the secondary lepton energy-angle double distribution is considered. Utility of observables derived from this is demonstrated by considering the anomalous couplings, δκ γ . Results of our investigation for typical ILC machine considered at √ s = 300 − 1000 GeV re-affirms potential of this collider as a precision machine.