ATLAS Conference Slides

უკანასკნელი დამატებები:
2017-09-22
18:05
 Longitudinal multiplicity fluctuations and flow decorrelations in Pb+Pb collisions with the ATLAS detector / Derendarz, Dominik (Institute of Nuclear Physics Polish Academy of Sciences, Krakow) /ATLAS Collaboration A comprehensive study of decorrelations of flow harmonics vn is done for Pb+Pb collisions at 2.76 and 5.02 TeV. The decorrelation of vn between η1 and η2 is found to follow a linear dependence on the pseudorapidity separation |η1−η2| for v2−5, and shows a small but a measurable variation with the collision energy. [...] ATL-PHYS-SLIDE-2017-811.- Geneva : CERN, 2017 Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 4th International Conference Initial Stages in High-Energy Nuclear Collisions, Kraków, Poland, Poland, 18 - 22 Sep 2017

2017-09-22
17:18
 Measurement of multi-particle azimuthal correlations with the subevent cumulant method with the ATLAS detector / Zhou, Mingliang (Stony Brook University) /ATLAS Collaboration The measurement of four-particle cumulant and anisotropic elliptic flow coefficient for the second harmonic, $c_{2}\{4\}$ and $v_{2}\{4\}$, are presented using $pp$ data at $\sqrt{s}=5.02$ and $\sqrt{s}=13$ TeV, and $p+$Pb data at $\sqrt{s_{\text{NN}}}=5.02$ TeV. These measurements aim to assess collective nature of multi-particle production. [...] ATL-PHYS-SLIDE-2017-810.- Geneva : CERN, 2017 Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 4th International Conference Initial Stages in High-Energy Nuclear Collisions, Kraków, Poland, Poland, 18 - 22 Sep 2017

2017-09-22
16:59
 Jet Probes of the Initial State at the LHC / Sickles, Anne Marie (University of Illinois at Urbana-Champaign) /ATLAS Collaboration Proton-nucleus collisions have been studied to provide baseline measurements for hard processes in heavy ion collisions. Extensive measurements have been made of the jet production rates, the properties of the jets and the correlation between pairs of jets and other related observables. [...] ATL-PHYS-SLIDE-2017-809.- Geneva : CERN, 2017 Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 4th International Conference Initial Stages in High-Energy Nuclear Collisions, Kraków, Poland, Poland, 18 - 22 Sep 2017

2017-09-22
16:35
 Heavy flavour and quarkonia measurement with ATLAS detector / Gallus, Petr (Czech Technical University in Prague) /ATLAS Collaboration Charm and bottom quarks provide a powerful tool to study the properties of the hot, dense medium created in heavy ion collisions, and in particular may help differentiate between initial and final state effects in large collision systems. Measurements of open heavy flavour particle and quarkonia production, including their prompt and non-prompt components, and their correlations with light hadrons, build a path to understanding how heavy quarks propagate through the quark-gluon plasma. [...] ATL-PHYS-SLIDE-2017-808.- Geneva : CERN, 2017 - 26 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 4th International Conference Initial Stages in High-Energy Nuclear Collisions, Kraków, Poland, Poland, 18 - 22 Sep 2017

2017-09-22
15:24
 Measurement of photon (also +jets) production cross sections, jets production cross sections and extraction of the strong coupling constant / Villaplana Perez, Miguel (INFN Milano and Universita' di Milano, Dipartimento di Fisica) /ATLAS Collaboration The production of prompt isolated photons at hadron colliders provides a stringent test of perturbative QCD and can be used to probe the proton structure. The ATLAS collaboration has performed precise measurements of the inclusive production of isolated prompt photons at a centre-of-mass energy of 13 TeV, differential in both rapidity and the photon transverse momentum. [...] ATL-PHYS-SLIDE-2017-807.- Geneva : CERN, 2017 - 40 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : XLVII International Symposium on Multiparticle Dynamics, Tlaxala City, Mexico, 11 - 15 Sep 2017

2017-09-22
15:22
 Overview of recent results from the ATLAS experiment / Grabowska-Bold, Iwona (AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow) /ATLAS Collaboration The heavy-ion program in the ATLAS experiment at the LHC originated as an extensive program to probe and characterize the hot, dense matter created in relativistic lead-lead collisions. In recent years, the program has also broadened to a detailed study of collective behavior in smaller systems. [...] ATL-PHYS-SLIDE-2017-806.- Geneva : CERN, 2017 Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 4th International Conference Initial Stages in High-Energy Nuclear Collisions, Kraków, Poland, Poland, 18 - 22 Sep 2017

2017-09-22
14:50
 Electroweak boson production in heavy ion collisions with the ATLAS detector / Janus, Piotr Andrzej (AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow) /ATLAS Collaboration Electroweak bosons produced in p+Pb and Pb+Pb collisions are excellent tools to probe a variety of initial state effects on hard processes involving nuclei. These effects include the nuclear modification of the partonic momentum structure and the energy loss of the incoming partons participating in a hard scattering. [...] ATL-PHYS-SLIDE-2017-805.- Geneva : CERN, 2017 - 15 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 4th International Conference Initial Stages in High-Energy Nuclear Collisions, Kraków, Poland, Poland, 18 - 22 Sep 2017

2017-09-22
14:41
 Highlights of top-quark measurements in hadronic final states at ATLAS / Palazzo, Serena (INFN Gruppo Collegato di Cosenza and Universita' della Calabria, Dipartimento di Fisica) /ATLAS Collaboration Measurements of inclusive and differential top-quark production cross-sections in hadronic final states, including hadronic tau decays, in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented at center of mass energies of 7, 8 and 13 TeV. The inclusive cross-section measurements reach high precision and are compared to other decay modes and the best available theoretical calculations. [...] ATL-PHYS-SLIDE-2017-804.- Geneva : CERN, 2017 - 35 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : XLVII International Symposium on Multiparticle Dynamics, Tlaxala City, Mexico, 11 - 15 Sep 2017

2017-09-22
12:12
 Applying Big Data solutions for log analytics in the PanDA infrastructure / Alekseev, Aleksandr (CERN Tier-0) ; Barreiro, Fernando (Physics Department, Universidad Autonoma de Madrid) ; Klimentov, Alexei (Brookhaven National Laboratory (BNL)) ; Korchuganova, Tatiana (CERN Tier-0) ; Maeno, Tadashi (Brookhaven National Laboratory (BNL)) ; Padolski, Siarhei (Brookhaven National Laboratory (BNL)) /ATLAS Collaboration PanDA is the workflow management system of the ATLAS experiment at the LHC and is responsible for generating, brokering and monitoring up to two million jobs per day across 150 computing centers in the Worldwide LHC Computing Grid. The PanDA core consists of several components deployed centrally on around 20 servers. [...] ATL-SOFT-SLIDE-2017-803.- Geneva : CERN, 2017 - 14 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : 26th International Symposium on Nuclear Electronics & Computing, Becici, Budva, Montenegro, 25 - 29 Sep 2017

2017-09-22
10:13
 3D Silicon Tracker for AFP - From Qualification to Operation / F\"orster, Fabian Alexander (Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Barcelona, Spain) /ATLAS Collaboration The ATLAS Forward Proton (AFP) experiment is a detector located ~210 m away from the ATLAS interaction point on both sides. Its aim is to tag and measure forward protons produced in diffractive events. [...] ATL-FWD-SLIDE-2017-802.- Geneva : CERN, 2017 - 19 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS) In : The 26th International Workshop on Vertex Detectors , Las Caldas, Spain, 10 - 15 Sep 2017