Di-Higgs production ($\gamma \gamma \to h h$) in Composite Models

TL;DR

This paper investigates how Composite Higgs Models influence the loop-induced di-Higgs production process in photon collisions, highlighting potential deviations from Standard Model predictions due to new couplings and particles.

Contribution

It analyzes the effects of Composite Higgs Models on the $oldsymbol{\gamma o h h}$ process, emphasizing modifications in loop contributions and effective couplings.

Findings

Composite Higgs Models can significantly alter di-Higgs production rates.

New effective couplings from composite models impact loop processes.

Potential observable deviations from Standard Model predictions.

Abstract

In Standard Model (SM) Higgs Boson pair production initiated by photons ($\gamma \gamma \to h h$) is loop-generated process and thereby very sensitive to any new couplings and particles that may come in loops. The Composite Higgs Models provide an alternate mechanism to address the hierarchy problem of SM where Higgs instead of being an elementary field could be a bound state of a strongly interacting sector. These set of models apart from modifying the SM Higgs couplings could also introduce new effective couplings that can have substantial impact on the loop processes. In this work we have studied the impact of such modifications by Composite Higgs models in $\gamma\gamma \to h h$ production process.