Weyl meson and its implications in collider physics and cosmology

TL;DR

This paper explores a locally scale-invariant extension of the Standard Model featuring a Weyl meson, analyzing its collider signatures and potential role as dark matter within specific coupling parameter ranges.

Contribution

It introduces a generalized Standard Model with local scale invariance, incorporating a Weyl meson and studying its phenomenological implications in collider physics and cosmology.

Findings

Weyl meson can be detected in collider experiments under certain conditions.

The model provides a viable dark matter candidate in the form of the Weyl meson.

Parameter ranges are identified where the Weyl meson explains dark matter.

Abstract

Local scale invariant theory leads to the existence of a new particle called the Weyl vector meson. We study a generalized Standard Model, which displays local scale invariance. The model contains a real scalar field, besides the Higgs multiplet and coupling between the Higgs and Weyl meson. For certain range of coupling parameters, the Weyl-Higgs coupling leads to interesting phenomenon in particle colliders as well as in cosmology. Here we study the signature of the Weyl meson in particle colliders and determine the range of coupling parameters for which it can solve the dark matter problem.