# Confronting Scherk-Schwarz orbifold models with LHC data

## TL;DR

This paper reviews the analysis of orbifold GUT models, especially SU(5) variants, assessing their compatibility with LHC data and exploring extensions with additional scalars and gauge groups to improve phenomenological viability.

## Contribution

It provides a comprehensive analysis of orbifold GUT models, identifies the minimal SU(5) models as incompatible with data, and explores extended models with additional scalars and gauge groups.

## Key findings

- Minimal SU(5) models are ruled out by LHC data.
- Extended models with extra scalars and U(1) gauge groups offer promising alternatives.
- Future work needed to refine exclusion limits and connect to 6D theories.

## Abstract

We will outline our recent efforts aimed at analysing a class of models known as orbifold GUTs and their phenomenology in a variety of minimal and non-minimal settings. We examine the minimal SU(5) models, rule them out, and proceed by extending them with an additional scalar field along with a gauge extension via SU(5)xU(1) models. We end up by commenting on the future improvements needed to more accurately handle exclusions along with tracing the U(1) gauge extensions to more complete 6D theories.