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ATLAS Preprints

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2026-01-29
04:42
Searches for strong production of supersymmetric particles with the ATLAS detector / Greco, Matteo (Garching, Max Planck Inst.)
Supersymmetry (SUSY) provides elegant solutions to several open questions in the Standard Model, and searches for SUSY particles are an important component of the LHC physics program. [...]
arXiv:2601.19695. - 5.
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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.
Fulltext - Previous draft version - Fulltext

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2026-01-13
04:24
Measurement of spin correlation and entanglement in ATLAS and CMS / Jolly, Fiona Ann (DESY)
The Large Hadron Collider has delivered exceptionally large proton-proton collision datasets at centre-of-mass energies of up to 13.6 TeV. [...]
arXiv:2601.04649. - 7.
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2026-01-12
14:08
Probes of flavor symmetry and violation with top quarks in ATLAS and CMS / Strautnieks, Normunds Ralfs (LATVIA-UNIV) /ATLAS and CMS Collaborations
Measurements of lepton flavor universality (LFU) and searches for charged lepton flavor violation (cLFV) are one of the most straightforward ways of searching for Beyond Standard Model (BSM) physics. The numerous production of top quark pairs at the LHC allows for high precision measurements of LFU ratios and searches for cLFV signatures. [...]
CMS-CR-2025-296.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 18th International Workshop on Top Quark Physics (TOP2025), Seoul, South Korea, 21 - 26 Sep 2025

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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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2025-12-17
04:39
Measurement of differential $t$-channel production cross-sections of single top quarks and top antiquarks at $\sqrt{s}=13$ TeV with the ATLAS detector / Kretschmann, Lukas (Wuppertal U.)
The differential production cross-sections of single top quarks and top antiquarks produced via the $t$-channel process are measured in proton-proton collisions at $\sqrt{s}=13$ TeV at the LHC with the full Run 2 ATLAS dataset corresponding to an integrated luminosity of $140$ fb$^{-1}$. [...]
arXiv:2512.09379. - 6.
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