# Pair production of the Elementary Goldstone Higgs boson at the LHC

## TL;DR

This paper investigates the pair production of the Elementary Goldstone Higgs boson at the LHC, revealing that the dominant production mechanism differs from the Standard Model and can be significantly enhanced.

## Contribution

It provides the first detailed analysis of EGH boson pair production, highlighting the dominance of box diagrams and potential cross section enhancements.

## Key findings

- Resonant contribution of heavy scalar is very small
- SM-like triangle diagram contribution is strongly suppressed
- Total cross section can be significantly enhanced compared to SM

## Abstract

The Elementary Goldstone Higgs (EGH) model is a perturbative extension of the standard model (SM), which identifies the EGH boson as the observed Higgs boson. In this paper, we study pair production of the EGH boson via gluon fusion at the LHC and find that the resonant contribution of the heavy scalar is very small and the SM-like triangle diagram contribution is strongly suppressed. The total production cross section mainly comes from the box diagram contribution and its value can be significantly enhanced with respect to the SM prediction.