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1,184 Result(s)
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Article
Open AccessSoftware Performance of the ATLAS Track Reconstruction for LHC Run 3
Charged particle reconstruction in the presence of many simultaneous proton–proton ( \(p {} p \) ...
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Open AccessSearch for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb−1 of pp collision data at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search is conducted for new phenomena in events with a top quark pair and large missing transverse momentum, where the top quark pair is reconstructed in final states with one isolated electron or muon and m...
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Open AccessA precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS experiment at \(\sqrt{s}=8\) TeV
This paper presents for the first time a precise measurement of the production properties of the Z boson in the full phase space of the decay leptons. This is in contrast to the many previous precise unfolded mea...
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Open AccessSearch for dark matter particles in W+W− events with transverse momentum imbalance in proton-proton collisions at \( \sqrt{s} \) = 13 TeV
A search for dark matter particles is performed using events with a pair of W bosons and large missing transverse momentum. Candidate events are selected by requiring one or two leptons (ℓ = electrons or muons). ...
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Open AccessSearch for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton
A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2–20 GeV HNL mass range for the ...
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Article
Transformation of charge polarity at HfO2/GaN interfaces through post-deposition annealing
The transformation of charge polarity at HfO2/GaN interfaces was investigated through the post-deposition annealing (PDA) at 500 °C, 700 °C and 900 °C for 3 min. The change in surface property of atomic-layer dep...
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Open AccessSearch for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the \( {\ell}^{+}{\ell}^{-}t\overline{t} \) and \( \nu \overline{\nu}b\overline{b} \) final states using 140 fb−1 of data collected with the ATLAS detector
A search for a heavy CP-odd Higgs boson, A, decaying into a Z boson and a heavy CP-even Higgs boson, H, is presented. It uses the full LHC Run 2 dataset of pp collisions at
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Open AccessMeasurement of the production cross-section of \(J/\psi \) and \(\psi (2{\textrm{S}})\) mesons in pp collisions at \(\sqrt{s} = 13\) TeV with the ATLAS detector
Measurements of the differential production cross-sections of prompt and non-prompt \(J/\psi \) ...
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Open AccessSearch for resonant production of dark quarks in the dijet final state with the ATLAS detector
This paper presents a search for a new Z′ resonance decaying into a pair of dark quarks which hadronise into dark hadrons before promptly decaying back as Standard Model particles. This analysis is based on proto...
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Open AccessHigher-order moments of the elliptic flow distribution in PbPb collisions at \( \sqrt{s_{\textrm{NN}}} \) = 5.02 TeV
The hydrodynamic flow-like behavior of charged hadrons in high-energy lead-lead collisions is studied through multiparticle correlations. The elliptic anisotropy values based on different orders of multipartic...
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Open AccessSearch for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector
A search for pair production of squarks or gluinos decaying via sleptons or weak bosons is reported. The search targets a final state with exactly two leptons with same-sign electric charge or at least three l...
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Open AccessSearch for non-resonant Higgs boson pair production in the \( 2b+2\ell +{E}_{\textrm{T}}^{\textrm{miss}} \) final state in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for non-resonant Higgs boson pair (HH) production is presented, in which one of the Higgs bosons decays to a b-quark pair ( ...
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Article
Open AccessMeasurement of the Higgs boson production via vector boson fusion and its decay into bottom quarks in proton-proton collisions at \( \sqrt{s} \) = 13 TeV
A measurement of the Higgs boson (H) production via vector boson fusion (VBF) and its decay into a bottom quark-antiquark pair ( ...
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Article
Open AccessMeasurement of the \(H \rightarrow \gamma \gamma \) and \(H \rightarrow ZZ^* \rightarrow 4 \ell \) cross-sections in pp collisions at \(\sqrt{s}=13.6\) TeV with the ATLAS detector
The inclusive Higgs boson production cross-section is measured in the di-photon and the \(ZZ^* \rightarrow 4 \ell \) ...
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Article
Open AccessStudy of charm hadronization with prompt \( {\Lambda}_{\textrm{c}}^{+} \) baryons in proton-proton and lead-lead collisions at \( \sqrt{s_{\textrm{NN}}} \) = 5.02 TeV
The production of prompt Λ c + ...
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Article
Open AccessMeasurement of the τ lepton polarization in Z boson decays in proton-proton collisions at \( \sqrt{s} \) = 13 TeV
The polarization of τ leptons is measured using leptonic and hadronic τ lepton decays in Z → τ+τ− events in proton-proton collisions at ...
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Open AccessStudies of new Higgs boson interactions through nonresonant HH production in the \( b\overline{b}\gamma \gamma \) final state in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for nonresonant Higgs boson pair production in the b b
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Open AccessDifferential cross-section measurements of the production of four charged leptons in association with two jets using the ATLAS detector
Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong ...
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Article
Open AccessSearch for resonances in events with photon and jet final states in proton-proton collisions at \( \sqrt{s} \) = 13 TeV
A search for resonances in events with the γ+jet final state has been performed using proton-proton collision data collected at ...
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Open AccessSearch for flavour-changing neutral tqH interactions with H → γγ in pp collisions at \( \sqrt{s} \) = 13 TeV using the ATLAS detector
A search for flavour-changing neutral interactions involving the top quark, the Higgs boson and an up-type quark q (q = c, u) is presented. The proton-proton collision data set used, with an integrated luminosity...