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ATLAS Preprints

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2025-03-12
08:25
Charged-hadron and identified-hadron ($K^\mathrm{0}_\mathrm{S}$, $\Lambda$, $\Xi^\mathrm{-}$) yield measurements in photo-nuclear Pb+Pb and $p$+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with ATLAS / ATLAS Collaboration
This paper presents the measurement of charged-hadron and identified-hadron ($K^\mathrm{0}_\mathrm{S}$, $\Lambda$, $\Xi^\mathrm{-}$) yields in photo-nuclear collisions using 1.7 $\mathrm{nb^{-1}}$ of $\sqrt{s_\mathrm{NN}} = 5.02$ TeV Pb+Pb data collected in 2018 with the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2503.08181 ; CERN-EP-2025-040. - 2025 - 51 p, 51.
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2025-03-11
14:07
Precision EW measurements at the LHC / Azzurri, Paolo (INFN, Pisa) /ATLAS, CMS and LHCB Collaborations
A selection of recent results obtained with the LHC data by the ATLAS, CMS, and LHCb experiments in the area of precision electroweak measurements is presented. These results include remarkable new determinations of the W boson mass, the weak mixing angle, and the properties of fermion couplings to gauge bosons. [...]
CMS-CR-2025-032.- Geneva : CERN, 2025 - 10 p. Fulltext: PDF;
In : 35th Rencontres de Blois Particle Physics and Cosmology, Blois, Fr, 20 - 25 Oct 2024

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2025-03-11
14:07
Machine learning in top quark physics at ATLAS and CMS / Komm, Matthias (DESY) /ATLAS and CMS Collaborations
This note presents an overview of machine-learning-based techniques used in the study of the top quark. The research community has developed a diverse set of ideas and tools, including algorithms for the efficient reconstruction of recorded collision events and innovative methods for statistical inference. [...]
CMS-CR-2025-002.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 17th International Workshop on Top Quark Physics, Saint Malo, France, 22 - 27 Sep 2024

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2025-03-10
07:47
Search for Higgs boson exotic decays into Lorentz-boosted light bosons in the four-$\tau$ final state at $\sqrt{s}=13$ TeV with the ATLAS detector
A search for exotic decays of the Higgs boson into a pair of low-mass scalars that subsequently decay into $\tau$-leptons, $H\rightarrow aa\rightarrow \tau^+\tau^-\tau^+\tau^-$, is presented. [...]
CERN-EP-2025-038. - 2025
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2025-03-08
04:49
Machine learning in top quark physics at ATLAS and CMS / Komm, Matthias (DESY)
This note presents an overview of machine-learning-based techniques used in the study of the top quark. [...]
arXiv:2503.04289. - 6.
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2025-03-04
08:39
Measurement of double-differential charged-current Drell-Yan cross-sections at high transverse masses in $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector
This paper presents a first measurement of the cross-section for the charged-current Drell-Yan process $pp\rightarrow W^{\pm} \rightarrow \ell^{\pm} \nu$ above the resonance region, where $\ell$ is an electron or muon [...]
CERN-EP-2025-032. - 2025
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2025-03-04
04:53
Open Data at ATLAS: Bringing TeV collisions to the World / Guerrieri, Giovanni (CERN)
ATLAS Open Data for Education delivers proton--proton collision data from the ATLAS experiment at CERN to the public along with open-access resources for education and outreach. [...]
arXiv:2502.21133. - 7.
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2025-03-04
04:46
Measurement of double-differential charged-current Drell-Yan cross-sections at high transverse masses in $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector / ATLAS Collaboration
This paper presents a first measurement of the cross-section for the charged-current Drell-Yan process $pp\rightarrow W^{\pm} \rightarrow \ell^{\pm} \nu$ above the resonance region, where $\ell$ is an electron or muon [...]
CERN-EP-2025-032 ; arXiv:2502.21088. - 64.
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2025-03-01
04:07
Overview of ATLAS forward proton detectors: status, performance and new physics results / Sopczak, A. (IEAP CTU, Prague ; Tech. U., Dortmund (main))
A key focus of the physics program at the LHC is the study of head-on proton-proton collisions. [...]
arXiv:2502.19530. - 15.
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2025-02-26
08:13
Measurement of the top quark mass with the ATLAS detector using $t\bar{t}$ events with a high transverse momentum top quark / ATLAS Collaboration
The mass of the top quark is measured using top-antitop-quark pair events with high transverse momentum top quarks. [...]
arXiv:2502.18216 ; CERN-EP-2025-015. - 2025 - 43.
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