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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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2025-07-03
18:22
Point Cloud Machine Learning for Cell-to-Track Association: Enhancing Event Reconstruction in High Energy Physics / Clissa, Luca (Universita e INFN, Bologna (IT)) ; Himmens, Joshua Jon ; Swiatlowski, Maximilian J (TRIUMF (CA)) ; Vivarelli, Iacopo (Universita e INFN, Bologna (IT)) /ATLAS Collaboration
The ATLAS detector at CERN’s Large Hadron Collider (LHC) is a complex system composed of multiple subdetectors, each designed to capture complementary aspects of particle interactions. Thus, accurate understanding of the physical phenomena under study requires effectively combining information from these components. [...]
ATL-PHYS-SLIDE-2025-291.- Geneva : CERN, 2025 - 35 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-07-03
18:19
An Implementation of Neural Simulation-Based Inference for Parameter Estimation at the LHC / Sandesara, Jay Ajitbhai (University of Wisconsin Madison (US)) /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. Such methods are promising for a range of measurements, including at the Large Hadron Collider, where no single observable may be optimal to scan over the entire theoretical phase space under consideration, or where binning data into histograms could result in a loss of sensitivity. [...]
ATL-PHYS-SLIDE-2025-290.- Geneva : CERN, 2025 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-07-01
14:48
Recent Heavy Flavor Results in ATLAS / Gentry, Andrew Donald (University of New Mexico (US)) /ATLAS Collaboration
Studying heavy-flavour hadron properties provides a extensive tests for various QCD predictions as well as a means to probe the Standard Model validity. ATLAS experiment, being a general-purpose detector at LHC, is particularly successful in such measurements with final states involving muons, thanks to large collected integrated luminosity and precise muon reconstruction and triggering. [...]
ATL-PHYS>-SLIDE-2025-289.- Geneva : CERN, 2025 - 26 p. Fulltext: CIPANP2025_PresFinal - PDF; ATL-PHYS>-SLIDE-2025-289 - PDF; External link: Original Communication (restricted to ATLAS)

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2025-07-01
13:31
Production of the ATLAS ITk Strip End-Cap global structures for the Phase-II LHC Upgrade. / Van't Hek, Max Nicolaas (Nikhef National institute for subatomic physics (NL)) /ATLAS Collaboration
The inner detector of the current ATLAS experiment has been designed to operate in the environment of the present Large Hadron Collider (LHC). During the ATLAS Phase-II Upgrade, particle densities and radiation levels will exceed present levels by an order of magnitude [...]
ATL-ITK-SLIDE-2025-288.- Geneva : CERN, 2025 - 27 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-06-27
12:51
Irradiation studies of ATLAS18 mini strip detectors with 23 GeV protons in IRRAD facility / Mandic, Igor (Jozef Stefan Institute (SI)) /ATLAS Collaboration
Several irradiation campaigns using 23 GeV protons were conducted at the IRRAD facility at CERN, employing test structures from ATLAS18 wafers for the ATLAS ITk strip sensors. These campaigns aimed to study charge collection efficiency after irradiation. [...]
ATL-ITK-SLIDE-2025-287.- Geneva : CERN, 2025 - 31 p. Fulltext: DRD3_Mandic_Jun_2025 - PDF; ATL-ITK-SLIDE-2025-287 - PDF; External link: Original Communication (restricted to ATLAS)

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2025-06-26
10:37
High-precision measurement of the $B_d^0$ meson lifetime at the ATLAS experiment. / Smizanska, Maria (Lancaster University (GB)) /ATLAS Collaboration
This talk will present the currently most precise measurement of the $B^0$ meson lifetime using 140 fb$^{-1}$ of 13 TeV $pp$ collision data of the ATLAS experiment, along with measurements of the average decay width $\Gamma_d$ and the ratio of $B^0$ and $B^0_s$ widths $\Gamma_d/\Gamma_s$..
ATL-PHYS-SLIDE-2025-286.- Geneva : CERN, 2025 - 17 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-06-25
15:32
Quark-Gluon Constituent-Based Jet Taggers for the HL-LHC / Castillo, Florencia Luciana (Centre National de la Recherche Scientifique (FR)) /ATLAS Collaboration
Jet constituents provide a more detailed description of the radiation pattern within a jet compared to observables summarizing global jet properties. In Run 2 analyses at the LHC using the ATLAS detector, transformer-based taggers leveraging low-level variables outperformed traditional approaches based on high-level variables and conventional neural networks in distinguishing quark- and gluon-initiated jets. [...]
ATL-PHYS-SLIDE-2025-285.- Geneva : CERN, 2025 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-06-25
15:11
Machine Learning-Driven Anomaly Detection in Dijet Events with ATLAS / Golling, Tobias (Universite de Geneve (CH)) ; Noll, Dennis Daniel Nick (Lawrence Berkeley National Lab. (US)) /ATLAS Collaboration
This contribution discusses an anomaly detection search for narrow-width resonances beyond the Standard Model that decay into a pair of jets. Using 139 fb−1 of proton-proton collision data at sqrt(s) = 13 TeV, recorded from 2015 to 2018 with the ATLAS detector at the Large Hadron Collider, we aim to identify new physics without relying on a specific signal model. [...]
ATL-PHYS-SLIDE-2025-284.- Geneva : CERN, 2025 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2025-06-24
23:43
{Search for a New Pseudoscalar Decaying to $b\bar{b}$ in Top-Associated Production at $\sqrt{s}=13$~TeV with ATLAS / Abdelhameed, Sara (New York University Abu Dhabi (AE)) /ATLAS Collaboration
Using the full \(139~\mathrm{fb}^{-1}\) of \(\sqrt{s}=13\ \mathrm{TeV}\) \(pp\) collision data recorded by ATLAS during Run~2, this search looks for a pseudoscalar \(a\) (CP-odd Higgs boson) produced with a top-quark pair or a single top\,+\,\(W\) and decaying via \(a\!\to\!b\bar b\). Events are selected in the dileptonic final state with exactly two opposite-sign leptons and at least three jets. [...]
ATL-PHYS>-SLIDE-2025-283.- Geneva : CERN, 2025 - 16 p. Fulltext: CIPANP_2025_SARA_KHALED - PDF; ATL-PHYS>-SLIDE-2025-283 - PDF; External link: Original Communication (restricted to ATLAS)

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2025-06-24
15:34
Search for long-lived neutral particles decaying into the ATLAS muon spectrometer / Revering, Michael (University of Cambridge (GB)) /ATLAS Collaboration
A recent analysis for long-lived particles using data collected by the ATLAS detector at the LHC is presented. The analysis uses vertices reconstructed from track segments in the muon spectrometers to search for long-lived particle decays displaced up to 14m from the primary interaction vertex. [...]
ATL-PHYS>-SLIDE-2025-282.- Geneva : CERN, 2025 - 13 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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