The Phenomenology of a Non-Standard Higgs Boson IN $W_{L}W_{L}$ Scattering

TL;DR

This paper investigates the phenomenology of a non-standard Higgs boson in longitudinal gauge boson scattering, using a composite Higgs model and model-independent calculations to identify deviations from the standard model relevant for future collider experiments.

Contribution

It introduces a composite Higgs model based on an $SU(4)/Sp(4)$ symmetry breaking pattern and analyzes the phenomenology of a non-standard Higgs in a model-independent way using chiral logarithmic corrections.

Findings

Deviations from the standard model are characterized by one key parameter related to the Higgs width.

The analysis provides insights into how a non-standard Higgs could affect gauge boson scattering.

Implications for detection at future hadron colliders are discussed.

Abstract

In this paper we consider the phenomenology of a ``non-standard'' Higgs Boson in longitudinal gauge-Boson scattering. First, we present a composite Higgs model (based on an $SU(4)/Sp\,(4)$ chiral-symmetry breaking pattern) in which there is a non-standard Higgs Boson. Then we explore, in a model-independent way, the phenomenology of such a non-standard Higgs by calculating the chiral logarithmic corrections to longitudinal gauge scattering. This calculation is done using the Equivalence theorem and the Higgs is treated as a scalar-isoscalar resonance coupled to the Goldstone Bosons of the \mbox{$SU(2)_{L} \times SU(2)_{R}/SU(2)_{V}$} chiral symmetry breaking. We show that the most important deviation from the one Higgs-doublet standard model is parameterized by one unknown coefficient which is related to the Higgs width. The implications for future hadron colliders are discussed.