Anomalous Higgs couplings ineγcollision with initial beam and final state polarizations

Abstract

We investigate the constraints on the anomalous $WWH$ couplings through the process ${e}^{\ensuremath{-}}\ensuremath{\gamma}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}{W}^{\ensuremath{-}}H$. Considering incoming beam polarizations and the longitudinal and transverse polarization states of the final $W$ boson, we find 95% confidence level limits on the anomalous coupling parameters with an integrated luminosity of $500\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ and $\sqrt{s}=0.5$ and 1 TeV energy. We show that initial beam and final state polarizations highly improve the sensitivity limits of the anomalous coupling parameters ${b}_{W}$ and ${\ensuremath{\beta}}_{W}$.