Measurement of triple gauge boson couplings a an e-gamma collider

TL;DR

This paper investigates the potential to measure anomalous triple gauge boson couplings at an e-gamma collider, which could reveal signs of strong electroweak symmetry breaking if no light Higgs exists.

Contribution

It presents a detailed analysis of the sensitivity to anomalous gauge couplings via the hadronic W decay channel at an e-gamma collider, highlighting the potential to detect effects of strong electroweak symmetry breaking.

Findings

Sensitivity to anomalous couplings ranges from 10^{-3} to 10^{-4}.

Measurement is feasible through the hadronic decay channel of the W boson.

Results could indicate strong electroweak symmetry breaking effects.

Abstract

If no light Higgs boson exists, the interaction among the gauge bosons becomes strong at high energies (~1TeV). The effects of strong electroweak symmetry breaking (SEWSB) could manifest themselves indirectly as anomalous couplings before they give rise to new physical states like resonances. Here a study of the measurement of trilinear gauge couplings is presented looking at the hadronic decay channel of the W boson at an e-gamma - collider. A sensitivity in the range of 10^{-3} to 10^{-4} can be reached depending on the coupling under consideration.