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ATLAS Papers

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2026-02-02
11:17
Breaking barriers: the impact of ATLAS Virtual Visits in science communication
The ATLAS Collaboration at CERN’s Large Hadron Collider is at the forefront of particle physics research and is equally committed to bridging the gap between cutting-edge science and the wider public [...]
CERN-EP-2026-013. - 2026
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2026-02-02
08:25
Search for dimuon resonance in the 35 to 75 GeV mass range using 140 fb$^{-1}$ of 13 TeV $pp$ collisions with the ATLAS
A model-independent search for low-mass resonances decaying into pairs of oppositely charged muons is presented. [...]
CERN-EP-2025-285. - 2026
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2026-01-19
08:14
Observation of a cross-section enhancement near the $t\bar{t}$ production threshold in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A measurement of $t\bar{t}$ production is presented in the invariant-mass region near the pair production threshold, $m_{t\bar{t}} \sim 345$ GeV, in final states with two charged leptons and multiple jets. [...]
arXiv:2601.11780 ; CERN-EP-2026-002. - 2026 - 64.
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2026-01-09
10:52
Search for long-lived particles using displaced vertices of oppositely charged leptons in 140 fb$^{-1}$ of pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search is presented for long-lived particles decaying into an oppositely charged lepton pair, $\mu^{+}\mu^{-}$, $e^{+}e^{-}$, or $e^{\pm}\mu^{\mp}$, that form a vertex within the inner tracking system of the ATLAS detector at the Large Hadron Collider, displaced from the primary proton-proton interaction region. [...]
arXiv:2601.05664 ; CERN-EP-2025-293. - 2026 - 40.
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2026-01-08
14:59
Measurement of differential $t$-channel single top (anti)quark production cross-sections at 13 TeV with the ATLAS detector / ATLAS Collaboration
The production of single top quarks and top antiquarks via the $t$-channel exchange of a virtual $W$ boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the Large Hadron Collider. [...]
arXiv:2601.04938 ; CERN-EP-2025-286. - 2026 - 65.
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2025-12-23
11:51
Search for $t\bar{t}$ resonances in final states with exactly one or two leptons using 140 fb$^{-1}$ of pp collision data at $\sqrt{s}=13$ TeV with the ATLAS experiment / ATLAS Collaboration
A search for heavy spin-1 and spin-2 resonances decaying into a top-antitop-quark pair has been performed with 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=13$ TeV. [...]
arXiv:2512.17856 ; CERN-EP-2025-281. - 2025 - 63.
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2025-12-22
07:52
Measurement of inclusive dijet cross-sections in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
Inclusive dijet cross-sections have been measured in proton-proton collisions at a centre-of-mass energy of 13 TeV using data with an integrated luminosity of 140 fb$^{-1}$, recorded by the ATLAS detector at the Large Hadron Collider during 2015-2018. [...]
arXiv:2512.19073 ; CERN-EP-2025-283. - 2025 - 51.
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2025-12-22
07:42
Calibration of the jet energy scale and resolution of small-radius jets using semileptonic $t\bar{t}$ events with the ATLAS detector / ATLAS Collaboration
A measurement of correction factors for the hadronic jet energy scale and resolution in the ATLAS detector is presented. [...]
arXiv:2512.17482 ; CERN-EP-2025-262. - 2025 - 47.
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2025-12-03
20:22
Performance and efficiency of a transformer-based quark/gluon jet tagger in the ATLAS experiment / ATLAS Collaboration
A deep-learning approach based on the transformer architecture is developed to distinguish between jets originating from quarks and gluons. [...]
arXiv:2512.03949 ; CERN-EP-2025-252. - 2025 - 50.
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2025-12-01
07:36
Measurement of the top-quark mass using decays with a $J/\psi$ meson at $\sqrt{s}=$13 TeV with the ATLAS detector / ATLAS Collaboration
The top-quark mass is measured using top-quark decays producing an isolated lepton and $J/\psi$ meson reconstructed in its $\mu^+\mu^-$ decay mode. [...]
arXiv:2511.23091 ; CERN-EP-2025-249. - 2025 - 50.
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