A theoretical status of the triple Higgs coupling studies at the LHC

TL;DR

This paper reviews the theoretical status of measuring the triple Higgs coupling at the LHC, discussing production mechanisms, recent analyses, and extensions like the Two-Higgs-Doublet model to understand electroweak symmetry breaking.

Contribution

It provides a comprehensive review of the theoretical aspects and recent phenomenological studies related to the triple Higgs coupling at the LHC, including extended Higgs sectors.

Findings

Analysis of Standard Model Higgs pair production mechanisms

Recent phenomenological results for high luminosity LHC

Illustration of extended Higgs sector in Two-Higgs-Doublet model

Abstract

Now that a Higgs boson has been discovered at the LHC, measuring its couplings to other particles is the next important step. In order to probe the electroweak symmetry breaking mechanism at its core it is crucial to reconstruct the scalar potential and hence measure the triple Higgs coupling at the LHC. We present a review of the main Standard Model Higgs boson pair production mechanisms in which the triple Higgs coupling plays a role and present the latest phenomenological analyses in view of a high luminosity LHC. One example of an analysis in the Two-Higgs-Doublet model will also be given as an illustration of an extended Higgs sector.