Vector-Boson Production of Light Higgs Pairs in 2-Higgs Doublet Models

TL;DR

This paper demonstrates the feasibility of detecting light Higgs pair production via vector-boson fusion at the LHC within 2-Higgs Doublet Models, providing insights into the Higgs potential through decay channels and jet analysis.

Contribution

It introduces a method to detect Higgs pairs and measure the triple Higgs coupling in 2HDMs using vector-boson fusion and decay channels at the LHC.

Findings

Feasibility of detecting $hh$ production at the LHC.

Access to the $ ext{H}hh$ coupling through decay analysis.

Potential to constrain the Higgs potential form.

Abstract

At the Large Hadron Collider, we prove the feasibility to detect pair production of the lightest CP-even Higgs boson $h$ of Type II 2-Higgs Doublet Models through $q q^{(')}\to q q^{(')} {hh}$ (vector-boson fusion). We also show that, through the $hh\to 4b$ decay channel in presence of heavy-flavour tagging, further exploiting forward/backward jet sampling, one has direct access to the $\lambda_{Hhh}$ triple Higgs coupling -- which constrains the form of the Higgs potential.