31 papers · 1 filter
Search for signatures of electroweakinos with photons, jets, and large missing transverse momentum in TeV pp collisions with the ATLAS detector
ATLAS Collaboration
A search for final states characterised by at least one isolated high transverse-momentum photon, jets and large missing transverse momentum is presented. Such a final state might…
Observation of production at 13 TeV with the ATLAS detector
ATLAS Collaboration
This paper presents the first observation of top-quark pair production in association with two photons (). The measurement is performed in the single-lepton decay chann…
Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in TeV collisions with the ATLAS detector
ATLAS Collaboration
A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a boson along with a muon or electron. Two channels are explored: a leptonic ch…
Search for Higgs boson exotic decays into Lorentz-boosted light bosons in the four- final state at TeV with the ATLAS detector
ATLAS Collaboration
A search for exotic decays of the Higgs boson into a pair of low-mass scalars that subsequently decay into -leptons, , is presented. In…
Measurement of the top quark mass with the ATLAS detector using events with a high transverse momentum top quark
ATLAS Collaboration
The mass of the top quark is measured using top-antitop-quark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton--proton…
Configuration, Performance, and Commissioning of the ATLAS -jet Triggers for the 2022 and 2023 LHC data-taking periods
ATLAS Collaboration
In 2022 and 2023, the Large Hadron Collider produced approximately two billion hadronic interactions each second from bunches of protons that collide at a rate of 40 MHz. The ATLAS…