Quantum Treatment of the Weyl Vector Meson

TL;DR

This paper explores the quantum properties of the Weyl meson in scale-invariant theories, proposing it as a dark matter candidate and analyzing the implications of its interactions with scalar fields, including potential collider phenomenology.

Contribution

It provides a detailed quantization of the Weyl meson in scale-invariant models and introduces a generalized model with an additional scalar, affecting the particle spectrum and collider signatures.

Findings

Weyl meson can serve as a dark matter candidate.

Quantization of the theory with gauge fixing is performed.

A Higgs-like particle remains in the spectrum in the generalized model.

Abstract

The Weyl meson arises in theories with local scale invariance. It acts as a candidate for dark matter in a generalized Standard Model with local scale invariance. The Higgs particle is absent from the physical spectrum in this theory. We consider the quantization of this theory in detail, imposing suitable gauge fixing conditions. We also consider a further generalization of this model which includes an additional real scalar field. In this theory a Higgs like particle remains in the particle spectrum. Since this particle couples to the Weyl meson, it can lead to interesting phenomenology involving this vector field in particle colliders.