This document summarises the current theoretical and experimental status of the di-Higgs
boson production searches, and of the direct and indirect constraints on the Higgs boson …

The Higgs boson, a fundamental scalar boson with mass 125 GeV, was discovered at the
Large Hadron Collider (LHC) at CERN in 2012. So far, experiments at the LHC have …

A bstract A search for Higgs boson pair production in events with two b-jets and two τ-
leptons is presented, using a proton–proton collision dataset with an integrated luminosity of …

A search is presented for four-top-quark production using an integrated luminosity of 139 fb^-
1-1 of proton–proton collision data at a centre-of-mass energy of 13~ TeV 13 TeV collected …

A search for resonant Higgs boson pair production in the bb¯ bb¯ final state is presented.
The analysis uses 126 fb-1–139 fb-1 of pp collision data at s= 13 TeV collected with the …

A search for nonresonant Higgs boson (H) pair production via gluon and vector boson (V)
fusion is performed in the four-bottom-quark final state, using proton-proton collision data at …

A bstract A search for nonresonant production of Higgs boson pairs via gluon-gluon and
vector boson fusion processes in final states with two bottom quarks and two photons is …

A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented,
focusing on the four b quark final state. The data sample consists of proton-proton collisions …

A bstract The results of a search for Higgs boson pair (HH) production in the WW* WW*,
WW* ττ, and ττττ decay modes are presented. The search uses 138 fb− 1 of proton-proton …

Several improvements to the ATLAS triggers used to identify jets containing b-hadrons (b-
jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 …