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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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2019-11-20
18:39
Designing a new infrastructure for ATLAS Online Web Services / Scannicchio, Diana (University of California, Irvine) ; Ballestrero, Sergio (University of Johannesburg, Department of Mechanical Engineering Science) ; Brasolin, Franco (Universita e INFN, Bologna) ; Twomey, Matthew Shaun (Department of Physics, University of Washington, Seattle) ; Sanchez Pineda, Arturos (Abdus Salam Int. Cent. Theor. Phys. (IT)) /ATLAS Collaboration
Within the ATLAS detector, the Trigger and Data Acquisition system is responsible for the online processing of data streamed from the detector during collisions at the Large Hadron Collider (LHC) at CERN. The online farm is composed of ~4000 servers processing the data read out from ~100 million detector channels through multiple trigger levels. [...]
ATL-DAQ-SLIDE-2019-858.- Geneva : CERN, 2019 - 12 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019

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2019-11-18
15:59
ATLAS Trigger and Data Acquisition Upgrades for the High Luminosity LHC / Kopeliansky, Revital (Indiana University) ; ATLAS Collaboration /ATLAS Collaboration
The ATLAS experiment at CERN has started the construction of upgrades for the "High Luminosity LHC", with collisions due to start in 2026. 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 7.5x1034 cm-2s-1, resulting in much higher pileup and data rates than the current experiment was designed to handle. [...]
ATL-DAQ-SLIDE-2019-857.- Geneva : CERN, 2019 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019

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2019-11-18
15:53
The one-million table partitions challenge in an ATLAS experiment DB application @ CERN / Dimitrov, Gancho (European Laboratory for Particle Physics, CERN) /ATLAS Collaboration
The presentation describes the challenges in designing a new DB system in the ATLAS experiment at CERN which needs to manage billions of rows with relatively short lifetime (weeks to months). For that system an approach of data grouping organised in table partitions might be appropriate. [...]
ATL-SOFT-SLIDE-2019-856.- Geneva : CERN, 2019 - 45 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2019-11-18
05:06
Ultraperipheral collisions 
at RHIC & the LHC / Steinberg, Peter (Brookhaven National Laboratory (BNL)) /ATLAS Collaboration
This talk is a brief overview of ultraperipheral collisions in nuclear collisions (A+p and A+A), with additional perspectives from lepton+proton experiments, and discussions of events where electromagnetic processes occur simultaneously with hadronic ones..
ATL-PHYS-SLIDE-2019-855.- Geneva : CERN, 2019 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2019-11-15
20:39
Collective behavior of high-pT particles in 8.16 TeV p+Pb collisions with ATLAS / Hill, Kurt Keys (University of Colorado Boulder) /ATLAS Collaboration
Charged particles in small collision systems such as
ATL-PHYS-SLIDE-2019-854.- Geneva : CERN, 2019 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2019-11-15
20:37
Flow and Centrality fluctuations in ATLAS / Jia, Jiangyong (Stony Brook University) /ATLAS Collaboration
Multi-particle azimuthal cumulants are measured as a function of centrality and transverse momentum in 5.02 TeV Pb+Pb collisions. These cumulants provide information on the event-by-event fluctuations of harmonic flow coefficients $v_n$ and correlated fluctuations between two harmonics $v_n$ and $v_m$. [...]
ATL-PHYS-SLIDE-2019-853.- Geneva : CERN, 2019 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : The 28th International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, Wuhan, China, 3 - 9 Nov 2019

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2019-11-15
19:02
Fast and Resource efficient Depp NN on FPGAs for the Phase-II L0 Muon Barrel Trigger of the ATLAS experiment / Giagu, Stefano (INFN Roma and Sapienza Universita' di Roma, Dipartimento di Fisica) ; ATLAS Collaboration /ATLAS Collaboration
Slides for the talk (12' + 3' discussion) at the CHEP 2019 Conference
ATL-DAQ-SLIDE-2019-852.- Geneva : CERN, 2019 - 11 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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2019-11-15
18:29
Electroweak boson and forward jet probes of the initial state in Pb+Pb and p+Pb collisions with ATLAS / Sickles, Anne Marie (University of Illinois at Urbana-Champaign) /ATLAS Collaboration
Measurements of electroweak bosons produced in Pb+Pb collisions as well as photon and jet production in p+Pb collisions are of great interest to understanding initial state effects. These channels are sensitive to a broad set of physics effects such as high-precision test of the binary collision scaling expected in Pb+Pb, the modification of the parton densities in nuclei, the onset of non-linear QCD or saturation effects at low-$x$, and the energy loss of partons in the nucleus before the hard scattering. [...]
ATL-PHYS-SLIDE-2019-851.- Geneva : CERN, 2019 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : The 28th International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, Wuhan, China, 3 - 9 Nov 2019

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2019-11-15
16:01
Implementation of the ATLAS trigger within the multi-threaded AthenaMT framework / Khoo, Teng Jian (Departement de Physique Nucleaire et Corpusculaire, Universite de Geneve) ; ATLAS Collaboration /ATLAS Collaboration
Athena is the software framework used in the ATLAS experiment throughout the data processing path, from the software trigger system through offline event reconstruction to physics analysis. The shift from high-power single-core CPUs to multi-core systems in the computing market means that the throughput capabilities of the framework have become limited by the available memory per process. [...]
ATL-DAQ-SLIDE-2019-850.- Geneva : CERN, 2019 - 25 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019

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2019-11-15
13:19
FELIX: the new detector interface for ATLAS / Panduro Vazquez, Jose Guillermo (Department of Physics, Royal Holloway and Bedford New College) ; ATLAS TDAQ Collaboration /ATLAS Collaboration
After the current LHC shutdown (2019-2021), the ATLAS experiment will be required to operate in an increasingly harsh collision environment. To maintain physics performance, the ATLAS experiment will undergo a series of upgrades during the shutdown. [...]
ATL-DAQ-SLIDE-2019-849.- Geneva : CERN, 2019 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019

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