LHC sensitivity to the resonance spectrum of a minimal strongly interacting electroweak symmetry breaking sector

TL;DR

This paper analyzes the LHC's ability to detect resonances in a minimal strongly interacting electroweak symmetry breaking sector using a unitarized chiral Lagrangian approach, exploring how different parameters affect resonance signals.

Contribution

It introduces a unified framework for analyzing vector boson pair production and resonance spectra in a strongly interacting electroweak sector using a unitarized chiral Lagrangian and form factors.

Findings

Resonance spectra depend on two chiral parameters.

Certain parameter regions produce detectable resonances at the LHC.

The analysis identifies LHC-probe regions in the parameter space.

Abstract

We present a unified analysis of the two main production processes of vector boson pairs at the LHC, VV-fusion and qqbar annihilation, in a minimal strongly interacting electroweak symmetry breaking sector. Using a unitarized electroweak chiral Lagrangian formalism and modeling the final V_L V_L strong rescattering effects by a form factor, we describe qqbar annihilation processes in terms of the two chiral parameters that govern elastic V_L V_L scattering. Depending on the values of these two chiral parameters, the unitarized amplitudes may present resonant enhancements in different angular momentum-isospin channels. Scanning this two parameter space, we generate the general resonance spectrum of a minimal strongly interacting electroweak symmetry breaking sector and determine the regions that can be probed at the LHC.