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24 papers · 1 filter
Inclusive and differential cross-section measurements of production in collisions at TeV with the ATLAS detector, including EFT and spin-correlation interpretations
ATLAS Collaboration
Measurements of both the inclusive and differential production cross sections of a top-quark-top-antiquark pair in association with a boson () are presented. Final s…
Measurement of jet substructure in boosted events with the ATLAS detector using 140 fb of 13 TeV collisions
ATLAS Collaboration
Measurements of the substructure of top-quark jets are presented, using 140 fb of 13 TeV collision data recorded with the ATLAS detector at the LHC. Top-quark jets reco…
Measurement of the Z boson invisible width at TeV with the ATLAS detector
ATLAS Collaboration
A measurement of the invisible width of the boson using events with jets and missing transverse momentum is presented using 37 $\mbox{fb\(^{-1}\)}$ of 13 TeV proton-proton data…
Measurement of the process with the ATLAS detector at 13 TeV
ATLAS Collaboration
A measurement of the Standard Model Higgs boson produced in association with a or boson and decaying into a pair of -leptons is presented. This search is based on proton…
Search for the decay of the Higgs boson to a boson and a light pseudoscalar particle decaying to two photons
ATLAS Collaboration
A search for the decay of the Higgs boson to a boson and a light, pseudoscalar particle, , decaying respectively to two leptons and to two photons is reported. The search us…
Combination of searches for resonant Higgs boson pair production using collisions at TeV with the ATLAS detector
ATLAS Collaboration
A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139 fb of collision data at TeV recorded with the…
Measurement of production cross-sections in the four-lepton final state in collisions at TeV with the ATLAS experiment
ATLAS Collaboration
This paper reports cross-section measurements of production in collisions at TeV at the Large Hadron Collider. The data were collected by the ATLAS detect…
Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector
ATLAS Collaboration
This paper presents a search for a new resonance decaying into a pair of dark quarks which hadronise into dark hadrons before promptly decaying back as Standard Model pa…
Measurement of -channel single-top-quark production in collisions at TeV with the ATLAS detector
ATLAS Collaboration
The observation of the electroweak production of single-top-quarks is made using 255 of proton-proton collision data recorded at TeV with the ATL…
Electron and photon energy calibration with the ATLAS detector using LHC Run 2 data
ATLAS Collaboration
This paper presents the electron and photon energy calibration obtained with the ATLAS detector using 140 fb of LHC proton-proton collision data recorded at Te…
Evidence for the Higgs boson decay to a boson and a photon at the LHC
ATLAS, CMS Collaborations
The first evidence for the Higgs boson decay to a boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a comb…
Azimuthal angle correlations of muons produced via heavy-flavor decays in 5.02 TeV Pb+Pb and collisions with the ATLAS detector
ATLAS Collaboration
Angular correlations between heavy-quarks provide a unique probe of the quark-gluon plasma created in ultra-relativistic heavy-ion collisions. Results are presented of a measuremen…
Search for singly produced vector-like top partners in multilepton final states with 139 of collision data at TeV with the ATLAS detector
ATLAS Collaboration
A search for the single production of a vector-like top partner () with mass greater than 1 TeV decaying into a boson and a top quark is presented, using the full Run 2 data…
Search for new phenomena in two-body invariant mass distributions using unsupervised machine learning for anomaly detection at TeV with the ATLAS detector
ATLAS Collaboration
Searches for new resonances are performed using an unsupervised anomaly-detection technique. Events with at least one electron or muon are selected from 140 fb of colli…
Search for leptoquark pair production decaying into or in multi-lepton final states in collisions at 13 TeV with the ATLAS detector
ATLAS Collaboration
A search for leptoquark pair production decaying into or in final states with multiple leptons is presented. The search is based on a dataset of…
Search for Dark Photons in Rare Boson Decays with the ATLAS Detector
ATLAS Collaboration
A search for events with a dark photon produced in association with a dark Higgs boson via rare decays of the Standard Model boson is presented, using 139 fb of $\sqrt{s…
The ATLAS Experiment at the CERN Large Hadron Collider: A Description of the Detector Configuration for Run 3
ATLAS Collaboration
The ATLAS detector is installed in its experimental cavern at Point 1 of the CERN Large Hadron Collider. During Run 2 of the LHC, a luminosity of $\mathcal{L}=2\times 10^{34}\mathr…
Observation of an excess of di-charmonium events in the four-muon final state with the ATLAS detector
ATLAS Collaboration
A search is made for potential tetraquarks decaying into a pair of charmonium states in the four muon final state using proton-proton collision data at $\sqrt{s}…
Observation of four-top-quark production in the multilepton final state with the ATLAS detector
ATLAS Collaboration
This paper presents the observation of four-top-quark () production in proton-proton collisions at the LHC. The analysis is performed using an integrated luminosi…
Probing the nature of the top-Higgs Yukawa coupling in and events with decays using the ATLAS detector at the LHC
ATLAS Collaboration
The properties of the coupling between the Higgs boson and the top quark are investigated with 139 fb of proton-proton collision data recorded by the ATLAS experiment a…
Search for a light charged Higgs boson in decays, with , in the lepton+jets final state in proton-proton collisions at TeV with the ATLAS detector
ATLAS Collaboration
A search for a charged Higgs boson, , produced in top-quark decays, , is presented. The search targets decays into a bottom and a charm q…
Measurements of the suppression and correlations of dijets in Xe+Xe collisions at = 5.44 TeV
ATLAS Collaboration
Measurements of the suppression and correlations of dijets is performed using 3 b of Xe+Xe data at TeV collected with the ATLAS detector a…
Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector
ATLAS Collaboration
This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses 139 fb$…
Measurement of the production of a boson in association with a charmed hadron in collisions at with the ATLAS detector
The ATLAS Collaboration
The production of a boson in association with a single charm quark is studied using 140 of proton-proton collision data collect…