Di-Higgs phenomenology: The forgotten channel

Abstract

Searches for multi-Higgs final states allow to constrain parameters of the SM (or extensions thereof) that directly relate to the mechanism of electroweak symmetry breaking. Multi-Higgs production cross sections, however, are small and the phenomenologically accessible final states are challenging to isolate in the busy multi-jet hadron collider environment of the LHC run 2. This makes the necessity to extend the list of potentially observable production mechanisms obvious. Most of the phenomenological analyses in the past have focused on $gg\to hh+jets$; in this paper we study $pp\to t\bar{t}hh$ at LHC run 2 and find that this channel for $h\to b\bar{b}$ and semi-leptonic and hadronic top decays has the potential to provide an additional handle to constrain the Higgs trilinear coupling in a global fit at the end of run 2.

5 pages, 3 figures

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Cited by in corpus (10)

• Higgs boson pair production in the D=6 extension of the SM
• Collider Physics at the Precision Frontier
• Probing the Higgs self coupling via single Higgs production at the LHC
• Indirect probes of the trilinear Higgs coupling: $gg\to h$ and $h\to \gamma \gamma$
• Invisible Decays in Higgs Pair Production
• Fully Differential Higgs Pair Production in Association With a $W$ Boson at Next-to-Next-to-Leading Order in QCD
• Higgs Coupling Measurements and the Scale of New Physics
• Probing the Top-Higgs Sector with Composite Higgs Models at Present and Future Hadron Colliders
• An EFT study of the $pp\to \bar{t}tZ(ll)h(bb)$ process at the FCC-$\mathbf{hh}$
• Exploring Higgs EFT in $t\bar{t}hh$ at High Luminosity LHC