Higgs boson pair production at the LHC in the $b \bar{b} W^+ W^-$ channel

TL;DR

This paper demonstrates that the $b ar{b} W^+ W^-$ channel can be effectively used at the 14 TeV LHC with 600 fb$^{-1}$ to detect Higgs boson pairs and probe the Higgs self-coupling, using advanced jet and event reconstruction techniques.

Contribution

It introduces a novel analysis method employing jet substructure and event reconstruction to enhance Higgs pair detection in the $b ar{b} W^+ W^-$ channel at the LHC.

Findings

Strong evidence for Higgs pair production in this channel at 14 TeV with 600 fb$^{-1}$.

Improved sensitivity to the Higgs trilinear coupling $bb$.

Potential to better constrain the Higgs self-interaction.

Abstract

We consider Higgs boson pair production at the LHC in the $b \bar{b} W^+ W^-$ channel, with subsequent decay of the $W^+W^-$ pair into $\ell \nu j j$. Employing jet substructure and event reconstruction techniques, we show that strong evidence for this channel can be found at the 14 TeV LHC with 600 fb$^{-1}$ of integrated luminosity, thus improving the current reach for the production of Higgs boson pairs. This measurement will allow to probe the trilinear Higgs boson coupling $\lambda$.