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The ATLAS Conference Slides collection contains transparencies on ATLAS that have been presented at conferences. More information about conferences can be found on the external ATLAS Talks at International Physics Conferences webpage.
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ATLAS Conference Slides

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2025-04-01
17:03
Online Track Reconstruction with Graph Neural Networks on FPGAs for the ATLAS Experiment / Parajuli, Santosh (Univ. Illinois at Urbana Champaign (US)) /ATLAS Collaboration
The High-Luminosity Large Hadron Collider (HL-LHC) at CERN marks a new era for high-energy particle physics, demanding significant upgrades to the ATLAS Trigger and Data Acquisition (TDAQ) system. Central to these upgrades is the enhancement of online software tracking capabilities to meet the unprecedented data rates and complexity of HL-LHC operations. [...]
ATL-DAQ-SLIDE-2025-065.- Geneva : CERN, 2025 Fulltext: DIS_2025_Santosh_Parajuli - PDF; ATL-DAQ-SLIDE-2025-065 - PDF; External link: Original Communication (restricted to ATLAS)
In : XXXII International Workshop on Deep Inelastic Scattering and Related Subjects, Cape Town, Za, 24 - 28 Mar 2025

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2025-04-01
15:28
The ATLAS Trigger System / Rimoldi, Marco (CERN) /ATLAS Collaboration
The ATLAS experiment in the LHC Run 3 uses a two-level trigger system to select events of interest to reduce the 40 MHz bunch crossing rate to a recorded rate of up to 3 kHz of fully-built physics events. The trigger system is composed of a hardware based Level-1 trigger and a software based High Level Trigger. [...]
ATL-DAQ-SLIDE-2025-064.- Geneva : CERN, 2025 - 20 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : XXXII International Workshop on Deep Inelastic Scattering and Related Subjects, Cape Town, Za, 24 - 28 Mar 2025

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2025-04-01
14:29
The Higgs boson’s lifetime measurement via off-shell decays to W-bosons / Wolffs, Zef (Nikhef National institute for subatomic physics (NL)) /ATLAS Collaboration
The discovery of the Higgs boson just over 10 years ago motivated many new questions as to the precise nature of this elusive particle. One such question pertains to the lifetime of the Higgs boson, which is a particularly interesting quantity as it holds information on the particle content in our universe. [...]
ATL-PHYS-SLIDE-2025-063.- Geneva : CERN, 2025 - 17 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 59th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 23 - 30 Mar 2025

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2025-04-01
14:24
Highlights on top quark properties and mass measurements with the ATLAS detector / Malito, Davide (University of London (GB)) /ATLAS Collaboration
The top-quark mass is one of the key fundamental parameters of the Standard Model that must be determined experimentally. Its value has an important effect on many precision measurements and tests of the Standard Model. [...]
ATL-PHYS>-SLIDE-2025-062.- Geneva : CERN, 2025 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : XXXII International Workshop on Deep Inelastic Scattering and Related Subjects, Cape Town, Za, 24 - 28 Mar 2025

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2025-04-01
14:24
Flavour Tagging with Graph Neural Networks with the ATLAS Detector / Santos, Helena (Laboratory of Instrumentation and Experimental Particle Physics (PT)) /ATLAS Collaboration
The identification of jets containing b-hadrons is key to many physics analyses at the LHC, including measurements involving Higgs bosons or top quarks, and searches for physics beyond the Standard Model. In this contribution, the most recent enhancements in the capability of ATLAS to separate b-jets from jets stemming from lighter quarks will be presented. [...]
ATL-PHYS>-SLIDE-2025-061.- Geneva : CERN, 2025 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : XXXII International Workshop on Deep Inelastic Scattering and Related Subjects, Cape Town, Za, 24 - 28 Mar 2025

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2025-04-01
00:36
Diboson Measurements / Wang, Rongkun (Harvard University (US)) /ATLAS Collaboration
Recent diboson measurements are presented, including ATLAS Zy nTGC measurement and CMS WZ measurement..
ATL-PHYS>-SLIDE-2025-060.- Geneva : CERN, 2025 - 23 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-03-31
19:19
New techniques for reconstructing and calibrating hadronic objects with ATLAS / Pirttikoski, Antti (Universite de Geneve (CH)) /ATLAS Collaboration
The precision and reach of physics analyses at the LHC is often tied to the performance of hadronic object reconstruction & calibration, with any incremental gains in understanding & reduced uncertainties being impactful on ATLAS results. Recent refinements to the reconstruction and calibration procedures for jets & missing energy by the ATLAS collaboration has resulted in reduced uncertainties, improved pileup stability and overall performance gains. [...]
ATL-PHYS>-SLIDE-2025-059.- Geneva : CERN, 2025 - 44 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : XXXII International Workshop on Deep Inelastic Scattering and Related Subjects, Cape Town, Za, 24 - 28 Mar 2025

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2025-03-31
16:55
Measurements of jet cross-section ratios with ATLAS / Zaplatilek, Ota (Czech Technical University in Prague (CZ)) /ATLAS Collaboration
Jet cross-section ratios between inclusive bins of jet multiplicity are measured differentially in variables that are sensitive to either the energy-scale or angular distribution of hadronic energy flow in the final state. Several improvements to the calibration of jets are described, which result in significant improvements in the overall jet energy scale uncertainty. [...]
ATL-PHYS>-SLIDE-2025-058.- Geneva : CERN, 2025 - 10 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-03-31
16:54
Classifying hadronic objects in ATLAS with ML/AI algorithms / Cepaitis, Vilius (Universite de Geneve (CH)) /ATLAS Collaboration
Hadronic object reconstruction & classification is one of the most promising settings for cutting-edge machine learning and artificial intelligence algorithms at the LHC. In this contribution, highlights of ML/AI applications by ATLAS to QCD and boosted-object identification, MET reconstruction and other tasks will be presented..
ATL-PHYS>-SLIDE-2025-057.- Geneva : CERN, 2025 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : XXXII International Workshop on Deep Inelastic Scattering and Related Subjects, Cape Town, Za, 24 - 28 Mar 2025

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2025-03-31
15:59
ATLAS Searches for new scalars & BSM Higgs decays / Bellos, Panagiotis (University of Birmingham (GB)) /ATLAS Collaboration
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable to solely explain some observations. [...]
ATL-PHYS-SLIDE-2025-056.- Geneva : CERN, 2025 - 14 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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