Constraints On Unparticle Physics In Electroweak Gauge Boson Scattering

TL;DR

This paper investigates how hypothetical unparticles could affect electroweak gauge boson scattering at the LHC, deriving constraints from unitarity and predicting measurable deviations in cross sections based on unparticle properties.

Contribution

It provides the first detailed analysis of unparticle effects on $WW$ scattering and establishes constraints on unparticle parameters from unitarity considerations.

Findings

Unparticles can cause measurable deviations in $WW$ scattering cross sections.

Constraints on unparticle scale dimension and spin are derived from unitarity.

Deviations depend on unparticle properties and could be detected at the LHC.

Abstract

The existence of scale invariant physics would lead to new phenomena in particle physics that could be detected at the LHC. In this paper we exploit the effects of these unparticles in $WW \to WW$ scattering. From the requirement of unitarity we derive constraints on unparticle physics. We show that the existence of unparticles would lead to deviations in differential cross sections which can be measured. These deviations are sensitive on the scale dimension and on the spin characteristics of the unparticles.