# Varying gauge couplings and collider phenomenology

## TL;DR

This paper explores models where gauge couplings vary due to scalar fields, analyzing their collider signatures, current exclusion limits, and future discovery prospects at the LHC.

## Contribution

It introduces a novel framework linking varying gauge couplings to scalar fields and studies their collider phenomenology with current and future collider data.

## Key findings

- Current LHC data constrains the model parameters.
- Predictions indicate potential for discovery at high-luminosity LHC.
- Multiple collider signatures are identified for varying gauge couplings.

## Abstract

In this paper we investigate a natural extension of the Standard Model that involves varying coupling constants. This is a general expectation in any fundamental theory such as string theory, and there are good reasons for why new physics could appear at reachable energy scales. We investigate the collider phenomenology of models with varying gauge couplings where the variations are associated with real singlet scalar fields. We introduce three different heavy scalar fields that are responsible for the variations of the three gauge couplings of the Standard Model. This gives rise to many interesting collider signatures that we explore, resulting in exclusion limits based on the most recent LHC data, and predictions of the future discovery potential at the high-luminosity LHC.