Strong interactions of weak bosons

TL;DR

This paper explores the parameterization and experimental constraints of electroweak gauge boson interactions without a light Higgs, emphasizing the role of four-point couplings and potential heavy resonances at future colliders.

Contribution

It introduces a framework for analyzing strong interactions of weak bosons without a light Higgs and assesses experimental sensitivities to these interactions and possible resonant states.

Findings

Current experiments constrain anomalous gauge-boson couplings.

Four-point couplings involving longitudinal weak bosons are linked to strong dynamics.

Future TeV $e^+e^-$ colliders can probe heavy resonant states.

Abstract

We discuss the parameterization for electroweak gauge boson interactions without a light Higgs boson. We present the constraints on the anomalous gauge-boson couplings from the current experiments. We emphasize that the four-point couplings involving the longitudinal weak bosons are genuine to the underlying strong dynamics responsible for the electroweak symmetry breaking. We study the sensitivity to the four-point couplings and the possible heavy resonant states in this sector at future TeV $e^+e^-$ linear colliders.