This paper presents the observation of four-top-quark (tt¯ tt¯) production in proton-proton
collisions at the LHC. The analysis is performed using an integrated luminosity of 140 fb-1 at …

Jet energy scale and resolution measurements with their associated uncertainties are
reported for jets using 36–81 fb-1 of proton–proton collision data with a centre-of-mass …

Abstract Measurements of the Standard Model Higgs boson decaying into ab ̄ b bb¯ pair
and produced in association with a W or Z boson decaying into leptons, using proton–proton …

The performance of the missing transverse momentum (E $ _ {T}^{miss} $) reconstruction
with the ATLAS detector is evaluated using data collected in proton-proton collisions at the …

A search for the decay of the Standard Model Higgs boson into abb¯ pair when produced in
association with a W or Z boson is performed with the ATLAS detector. The data …

The reconstruction of the signal from hadrons and jets emerging from the proton–proton
collisions at the Large Hadron Collider (LHC) and entering the ATLAS calorimeters is based …

The identification of jets containing b hadrons is important for the physics programme of the
ATLAS experiment at the Large Hadron Collider. Several algorithms to identify jets …

A search for the associated production of the Higgs boson with a top quark pair (tt¯ H) is
reported. The search is performed in multilepton final states using a data set corresponding …

This review covers results on the production of all possible electroweak boson pairs and 2-to-
1 vector boson fusion at the CERN Large Hadron Collider (LHC) in proton-proton collisions …

Precision physics at future colliders requires highly granular calorimeters to support the
particle flow approach for event reconstruction. This article presents a review of about 10–15 …