ATLAS Preprints

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2025-05-20
08:01

A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps
A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. [...]
CERN-EP-2025-026. - 2025
Fulltext - Previous draft version

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2025-05-19
09:37

Search for vector-like quarks and vector-like leptons / Wang, Christina Wenlu (Fermilab) /ATLAS and CMS Collaborations
Many extensions of the Standard Model (SM) predict the existence of vector-like fermions--quarks (VLQs) and leptons (VLLs). This proceeding presents recent results from the ATLAS and CMS collaborations on searches for VLQs and VLLs using data collected at the LHC from 2016--2018 with proton-proton collisions of 13 TeV. [...]
CMS-CR-2025-113.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 59th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 23 - 30 Mar 2025

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2025-05-16
16:58

Measurements of $W^+W^-$ production cross-sections in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Measurements of

W^{+} W^{-} \to e^{\pm} ν μ^{\mp} ν

$W^+W^-\rightarrow e^\pm \nu \mu^\mp \nu$ production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the electroweak theory. [...]
CERN-EP-2025-091. - 2025
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2025-05-13
17:14

Leptoquark searches at ATLAS and CMS / Neutelings, Izaak /ATLAS and CMS Collaborations
An overview of searches for leptoquarks in proton-proton collisions at ATLAS and CMS are presented, with a focus on results from the Run-2 dataset collected between 2016 and 2018 at

\sqrt{s} = 13

$\sqrt{s}=13$ \,TeV, and corresponding to an integrated luminosity of

137 - 140 {f b}^{- 1}

$137{-}140\,\mathrm{fb}^{-1}$ . In particular, recent results are highlighted..
arXiv:2505.08738; CMS-CR-2025-115.- Geneva : CERN, 2025 - 6 p. Fulltext: CR2025_115 - PDF; 2505.08738 - PDF;
In : 59th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 23 - 30 Mar 2025

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2025-05-13
16:37

The environmental impact, carbon emissions and sustainability of computing in the ATLAS experiment / ATLAS Collaboration
ATLAS, a general-purpose experiment at the Large Hadron Collider (LHC), operates a large internationally-distributed computing infrastructure, including over

10^{6}

$10^6$ TB of managed data on disk and tape and almost one million simultaneously running CPU cores. [...]
arXiv:2505.08530 ; CERN-EP-2025-105. - 2025 - 51.
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2025-05-13
14:23

Observation of double parton scattering in same-sign W boson pair production in pp collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. [...]
arXiv:2505.08313 ; CERN-EP-2025-109. - 2025 - 42.
Fulltext - Previous draft version - Fulltext

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2025-05-05
09:11

Search for emerging jets in $pp$ collisions at $\sqrt{s} = 13.6$ TeV with the ATLAS experiment / ATLAS Collaboration
A search for emerging jets is presented using 51.8 fb

^{- 1}

$^{-1}$ of proton-proton collision data at

\sqrt{s} = 13.6

$\sqrt{s} = 13.6$ TeV, collected by the ATLAS experiment during 2022 and 2023. [...]
arXiv:2505.02429 ; CERN-EP-2025-099. - 2025 - 52.
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2025-05-05
08:59

Search for new physics in final states with semi-visible jets or anomalous signatures using the ATLAS detector / ATLAS Collaboration
A search is presented for hadronic signatures of beyond the Standard Model (BSM) physics, with an emphasis on signatures of a strongly-coupled hidden dark sector accessed via resonant production of a

$Z'$ mediator. [...]
arXiv:2505.01634 ; CERN-EP-2025-101. - 2025 - 45.
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2025-04-11
08:09

Measurement of coincident photon-initiated processes in ultra-peripheral Pb+Pb collisions with the ATLAS detector / ATLAS Collaboration
The Lorentz-contracted electromagnetic fields of the ions in ultra-relativistic heavy-ion collisions generate intense quasi-real photon fluxes. [...]
arXiv:2504.07795 ; CERN-EP-2025-071. - 2025 - 34.
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2025-04-11
07:31