Anomalous WWγ couplings with beam polarization at the Compact Linear Collider

Abstract

We study the anomalous $WW\\gamma$ couplings at the Compact Linear Collider\nthrough the processes $e^{+}e^{-}\\to W^+W^-$, $e^{-}e^{+} \\to e^{-} \\gamma^{*}\ne^{+} \\to e^{+} \\nu_{e} W^-$ and $e^{-}e^{+}\\to e^{-} \\gamma^{*} \\gamma^{*}\ne^{+} \\to e^{-} W^+ W^- e^{+} $ $ (\\gamma^{*}$ is the Weizsacker-Williams\nphoton). We give the 95\\% confidence level limits for unpolarized and polarized\nelectron (positron) beam on the anomalous couplings for various values of the\nintegrated luminosities and center-of-mass energies. We show that the obtained\nlimits on the anomalous couplings through these processes can highly improve\nthe current experimental limits. In addition, our limits with beam polarization\nare approximately two times better than the unpolarized case.\n