Searches for strong dynamics signals in gauge boson pair production

TL;DR

This paper reviews the effective field theory approach to electroweak symmetry breaking and demonstrates how new physics effects can significantly alter gauge boson pair production rates at high-energy colliders.

Contribution

It applies a consistent EFT framework to gauge boson pair production, highlighting gauge-fermion vertex corrections as dominant new physics effects at TeV energies.

Findings

Corrections grow with energy, reaching about 20% at TeV colliders.

Effective field theory encodes new physics effects as gauge-fermion vertex modifications.

Potential for significant deviations from Standard Model predictions in collider experiments.

Abstract

I briefly review the construction of the effective field theory of a nonlinearly realized electroweak symmetry breaking and apply it to the study of gauge boson pair production. I will consider WW, ZZ and \gamma Z production at linear colliders as reference illustrative examples. I will show that in all cases a consistent effective field theory treatment allows to encode the dominant new physics effects entirely as gauge-fermion vertex corrections. From naive dimensional analysis one expects these corrections to be at the per mille level. However, they grow with energy, such that at TeV colliders (LHC and futures linear collider facilities) these new physics effects can easily amount to 20% corrections to the production cross sections.