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ATLAS Preprints

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2024-12-10
05:15
Measuring the ATLAS ITk Pixel Detector Material via Multiple Scattering of Positrons at the CERN PS / Koch, Simon Florian (Oxford U.) ; Moser, Brian (Oxford U. ; CERN) ; Lindner, Antonín (CERN) ; Dao, Valerio (CERN ; SUNY, Stony Brook) ; Asensi, Ignacio (CERN) ; Bortoletto, Daniela (Oxford U.) ; Brekkum, Marianne (CERN) ; Dachs, Florian (CERN) ; Joos, Hans Ludwig (CERN ; Gottingen U., II. Phys. Inst.) ; van Rijnbach, Milou (CERN ; Oslo U.) et al.
The ITk is a new silicon tracker for the ATLAS experiment designed to increase detector resolution, readout capacity, and radiation hardness, in preparation for the larger number of simultaneous proton-proton interactions at the High Luminosity LHC. [...]
arXiv:2412.04686. - 12.
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2024-12-05
16:08
Precision calibration of calorimeter signals in the ATLAS experiment using an uncertainty-aware neural network / ATLAS Collaboration
The ATLAS experiment at the Large Hadron Collider explores the use of modern neural networks for a multi-dimensional calibration of its calorimeter signal defined by clusters of topologically connected cells (topo-clusters). [...]
arXiv:2412.04370 ; CERN-EP-2024-317. - 2024 - 72.
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2024-12-04
05:09
Heavy-flavor production and hadronization at the LHC: experimental status and perspectives from LHC experiments / Feuillard, Victor (Heidelberg U.)
Heavy-flavor hadrons are one of the most prominent probes to study the quark-gluon plasma and to test models based on Quantum Chromodynamics (QCD). [...]
arXiv:2412.01336. - 7.
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2024-12-02
16:59
An implementation of neural simulation-based inference for parameter estimation in ATLAS / ATLAS Collaboration
Neural simulation-based inference is a powerful class of machine-learning-based methods for statistical inference that naturally handles high-dimensional parameter estimation without the need to bin data into low-dimensional summary histograms. [...]
arXiv:2412.01600 ; CERN-EP-2024-305. - 2024 - 49.
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2024-12-02
16:17
Measurement of off-shell Higgs boson production in the $H^*\rightarrow ZZ\rightarrow 4\ell$ decay channel using a neural simulation-based inference technique in 13 TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A measurement of off-shell Higgs boson production in the $H^*\to ZZ\to 4\ell$ decay channel is presented. [...]
arXiv:2412.01548 ; CERN-EP-2024-298. - 2024 - 65.
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2024-11-29
04:16
Measurements of $t\bar{t}$ in association with charm quarks at 13 TeV with the ATLAS experiment / Zoch, Knut (Harvard U.)
This talk presents the ATLAS Collaboration's first measurement of the inclusive cross-section for top-quark pair production in association with charm quarks. [...]
arXiv:2411.18209. - 7.
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2024-11-25
12:57
Search for Higgs boson decays into a $Z$ boson and a light hadronically decaying resonance in 140 fb$^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A search for decays of the Higgs boson into a $Z$ boson and a light resonance, with a mass of 0.5-3.5 GeV, is performed using the full 140 fb$^{-1}$ dataset of 13 TeV proton-proton collisions recorded by the ATLAS detector during Run 2 of the LHC. [...]
arXiv:2411.16361 ; CERN-EP-2024-261. - 2024 - 37.
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2024-11-25
11:10
New ideas for measurements and searches at the HL-LHC / Soffi, Livia (INFN, Rome) /ALICE,ATLAS,CMS and LHCB Collaborations
The High-Luminosity Large Hadron Collider (HL-LHC) will operate at unprecedented luminosity, with substantial data boosts enhancing the search for new physics and precision measurements. This paper explores advancements in detector technology, novel search strategies, and cutting-edge analysis techniques aimed at maximizing the HL-LHC's physics potential. [...]
CMS-CR-2024-289.- Geneva : CERN, 2024 - 8 p. Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024

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2024-11-23
04:23
Search for flavour-changing neutral current couplings between the top quark and the Higgs boson in multilepton final states with the ATLAS detector / Wahdan, Shayma (Wuppertal U.)
These proceedings present a search for flavour-changing neutral-current (FCNC) interaction involving the top quark, Higgs boson and either the up or the charm quark, using 140 fb$^{-1}$ of 13 TeV proton--proton collision data from the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2411.14026. -
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2024-11-20
09:28
Measurements of inclusive and differential cross-sections of $t\bar{t}\gamma$ production in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / Diez Pardos, Carmen (Universitaet Siegen (DE))
Cross-section measurements of the associated production of a top quark pair and a photon ($t\bar{t}\gamma$) are performed with an integrated luminosity of 140 fb$^{-1}$ of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. [...]
arXiv:2411.15261 ; ATL-PHYS-PROC-2024-108. - 2024 - 4.
Original Communication (restricted to ATLAS) - Full text - Fulltext

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