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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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2025-04-03
18:42
Charged particle and underlying event measurements with the ATLAS detector / Gwenlan, Claire (University of Oxford (GB)) /ATLAS Collaboration
In this talk, recent measurements of distributions sensitive to the underlying event, the hadronic activity observed in relationship with the hard scattering in the event, by the ATLAS experiment are presented. Underlying event observables like the average particle multiplicity and the transverse momentum sum are measured for Kaons as Lambda baryons as a function of the leading track-jet and are compared to MC predictions which in general fail to describe the data. [...]
ATL-PHYS>-SLIDE-2025-069.- 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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2025-04-03
17:50
Overview of EFT-based searches involving top quarks at ATLAS / Chitishvili, Mariam (Univ. of Valencia and CSIC (ES)) /ATLAS Collaboration
Many-parameter fits to precise measurements in the framework of the Standard Model Effective Field Theory are becoming a standard interpretation of LHC and other collider data. In this contribution an overview is given of state-of-the-art EFT interpretations in ATLAS with particular emphasis on results in the top quark sector..
ATL-PHYS>-SLIDE-2025-068.- Geneva : CERN, 2025 - 14 p. Fulltext: DIS2025-Mariam - PDF; ATL-PHYS>-SLIDE-2025-068 - 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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2025-04-03
17:48
Measurement of the top quark mass with the ATLAS detector using $t\bar{t}$ events with a high transverse momentum top quark / Watton, Elliot (University of Glasgow (GB)) /ATLAS Collaboration
The mass of the top quark is determined using top-antitop-quark pair events where the top quarks have high transverse momentum. The analysis is based on data collected with the ATLAS detector from proton-proton collisions at $\sqrt{s} = 13$ TeV at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb$^{-1}$. [...]
ATL-PHYS>-SLIDE-2025-067.- Geneva : CERN, 2025 - 34 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-04-03
14:53
The upgrade of the ATLAS Trigger and Data Acquisition system for the High Luminosity LHC / Roy-Garand, Sebastien (University of Toronto (CA)) /ATLAS Collaboration
The ATLAS experiment at CERN is constructing upgraded system for the "High Luminosity LHC", with collisions due to start in 2030. In order to deliver an order of magnitude more data than previous LHC runs, 14 TeV protons will collide with an instantaneous luminosity of up to 7.5 x 10e34 cm^-2s^-1, resulting in much higher pileup and data rates than the current experiment was designed to handle. [...]
ATL-DAQ-SLIDE-2025-066.- Geneva : CERN, 2025 - 15 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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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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