CERN Accelerating science

ATLAS Preprints

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2023-11-28
11:28
Combination of searches for resonant Higgs boson pair production using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A combination of searches for resonant Higgs boson pair production is presented, using up to 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV recorded with the ATLAS detector at the LHC. [...]
arXiv:2311.15956 ; CERN-EP-2023-271.
- 2023. - 31 p, 31 p.
Fulltext - Previous draft version - Fulltext

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2023-11-27
17:28
Measurement of the ttbar cross-section and ttbarZ cross-section ratio in pp collisions at a centre-of-mass energy of 13.6 TeV with the ATLAS and CMS experiments / Ranken, Evan Altair (DESY) /ATLAS and CMS Collaborations
Recent measurements of the inclusive ttbar production cross section, sigma_ttbar, and the ratio of ttbar to Z boson production, R_ttbar/Z, are presented by the CMS and ATLAS collaboration using data collected from proton-proton collisions at the new LHC operating energy of sqrt(s)=13.6 TeV. These are among the first results of the ongoing LHC Run 3 data-taking period, which began in 2022, and provide a first opportunity to measure changes in key physics observables following the increase in energy. [...]
CMS-CR-2023-269.- Geneva : CERN, 2023 - 10 p. Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023

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2023-11-23
04:16
Measurements and EFT fits on detector level / Mohrman, Kelci
The framework of standard model effective field theory (SMEFT) provides a relatively model-agnostic tool with which to parameterize the off-shell effects of potential heavy new physics. [...]
arXiv:2311.12204.
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Fulltext

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2023-11-20
17:19
Latest VBS and VBF results with the ATLAS and CMS experiments / Camaiani, Benedetta (INFN, Florence ; Florence U.) /ATLAS and CMS Collaborations
Vector Boson Scattering and Fusion processes are crucial to probe the electroweak sector of the Standard Model, as they are sensitive to self-couplings of vector bosons. This review summarizes the latest measurements of production cross sections of vector bosons in association with two jets, performed using data collected by the ATLAS and CMS experiments at $\sqrt{s} = 13$ TeV during the LHC Run 2 data taking period..
CMS-CR-2023-270.- Geneva : CERN, 2023 - 7 p. Fulltext: PDF;
In : 19th Incontri di Fisica delle Alte Energie, Catania, Italy, 12 - 14 Apr 2023

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2023-11-20
17:19
Searches for flavor-changing neutral currents and charged lepton flavor violation in association with top quarks at ATLAS and CMS / Park, Jiwon (DESY) /ATLAS and CMS Collaborations
The latest searches for flavor-changing neutral current (FCNC) and charged lepton flavor violation (CLFV) interactions in top quark events at the CMS and ATLAS experiments are presented. The data collected during the LHC Run 2 data-taking period have been utilized to test various types of beyond the standard model interactions in the top quark sector. [...]
CMS-CR-2023-258.- Geneva : CERN, 2023 - 7 p. Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023

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2023-11-20
17:14
Measurements and EFT fits on detector level / Mohrman, Kelci (Florida U.) /ATLAS and CMS Collaborations
The framework of standard model effective field theory (SMEFT) provides a relatively model-agnostic tool with which to parameterize the off-shell effects of potential heavy new physics. In the top quark sector, the ATLAS and CMS experiments make use of data collected by the CERN LHC to search for these off-shell effects by probing dimension-six SMEFT operators involving top quarks. [...]
CMS-CR-2023-250.- Geneva : CERN, 2023 - 9 p. Fulltext: PDF;
In : 16th International Workshop on Top Quark Physics, Traverse City, Michigan, Us, 24 - 29 Sep 2023

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2023-11-18
04:42
Measurement of $ZZ$ production cross-sections in the four-lepton final state in $pp$ collisions at $\sqrt{s}=13.6$ TeV with the ATLAS experiment / ATLAS Collaboration
This paper reports cross-section measurements of $ZZ$ production in $pp$ collisions at $\sqrt{s}=13.6$ TeV at the Large Hadron Collider. [...]
arXiv:2311.09715.
- 35 p.
Fulltext

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2023-11-15
17:01
Measurement of $ZZ$ production cross-sections in the four-lepton final state in $pp$ collisions at $\sqrt{s}=13.6$ TeV with the ATLAS experiment
This paper reports cross-section measurements of $ZZ$ production in $pp$ collisions at $\sqrt{s}=13.6$ TeV at the Large Hadron Collider. [...]
CERN-EP-2023-235.
- 2023.
Fulltext - Previous draft version

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2023-11-15
16:53
Simultaneous energy and mass calibration of large-radius jets with the ATLAS detector using a deep neural network / ATLAS Collaboration
The energy and mass measurements of jets are crucial tasks for the Large Hadron Collider experiments. [...]
arXiv:2311.08885 ; CERN-EP-2023-250.
- 2023. - 47 p.
Fulltext - Previous draft version - Fulltext

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2023-11-15
04:15
Observation of quantum entanglement in top-quark pairs using the ATLAS detector / ATLAS Collaboration
We report the highest-energy observation of entanglement, in top$-$antitop quark events produced at the Large Hadron Collider, using a proton$-$proton collision data set with a center-of-mass energy of $\sqrt{s}=13$ TeV and an integrated luminosity of 140 fb$^{-1}$ recorded with the ATLAS experiment. [...]
arXiv:2311.07288 ; CERN-EP-2023-230.
- 45 p.
Full text - Fulltext

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