Anomalous quartic WWgammagamma and WWZgamma couplings through WWZ production in gamma gamma colliders

TL;DR

This paper establishes limits on anomalous quartic gauge couplings in gamma gamma colliders, demonstrating that beam and final state polarization significantly enhance sensitivity in detecting new physics effects.

Contribution

It provides the first detailed analysis of how polarization improves bounds on anomalous WWgammagamma and WWZgamma couplings at various collider energies.

Findings

Polarization improves sensitivity limits significantly.

Limits are set at 95% confidence level for different energies.

Analysis covers integrated luminosity of 500 fb^{-1}.

Abstract

We find 95% confidence level limits on the anomalous coupling parameters $a_0$, $a_c$ and $a_n$ with an integrated luminosity of $500fb^{-1}$ and $\sqrt s =0.5, 1$ and 1.5 TeV energies. We take into account incoming beam polarizations and also the final state polarizations of the gauge bosons in the cross-section calculations to improve the bounds. We show that polarization leads to a significant amount of improvement in the sensitivity limits.