# CERN Accelerating science

RESTRICTED ATLAS COLLECTIONS
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# ATLAS Notes

2018-08-14
03:05
 Photon-tagged measurements of jet quenching with ATLAS / Perepelitsa, Dennis (University of Colorado Boulder) Events containing a high transverse momentum ($p_\mathrm{T}$) prompt photon offer a useful tool to study the dynamics of the hot, dense medium produced in heavy ion collisions. [...] ATL-PHYS-PROC-2018-085. - 2018. - 4 p. Original Communication (restricted to ATLAS) - Full text

2018-08-10
14:37
 Determination of the parton distribution functions of the proton from ATLAS measurements of differential $W$ and $Z/\gamma^*$ and $t\bar{t}$ cross sections An analysis of ATLAS data on inclusive $W^{\pm}$ and $Z/\gamma^*$ boson production and $t\bar{t}$ production in $pp$ collisions at the LHC is reported. [...] ATL-PHYS-PUB-2018-017. - 2018. - 23 p. Original Communication (restricted to ATLAS) - Full text

2018-08-08
15:48
 Prospects for $H\rightarrow c\bar c$ using Charm Tagging with the ATLAS Experiment at the HL-LHC The expected sensitivity of a search for decays of the Higgs boson into charm quarks is estimated for the ATLAS detector at the HL-LHC, by extrapolating the results obtained using a dataset with an integrated luminosity of $36.1\ \text{fb}^{-1}$ at $\sqrt{s}=13\ \text{TeV}$. [...] ATL-PHYS-PUB-2018-016. - 2018. - 13 p. Original Communication (restricted to ATLAS) - Full text

2018-08-07
04:24
 The Fast TracKer - A hardware track processor for the ATLAS trigger system / Potamianos, Karolos Jozef (DESY, Hamburg and Zeuthen) The Fast Tracker (FTK) is a hardware upgrade to the ATLAS trigger and data acquisition system providing global track reconstruction to the High-Level Trigger (HLT) with the goal to improve pile-up rejection. [...] ATL-DAQ-PROC-2018-017. - 2018. Original Communication (restricted to ATLAS) - Full text

2018-08-07
04:17
 The Phase-2 ATLAS ITk Pixel Upgrade / Macchiolo, Anna (Max-Planck-Institut fuer Physik) The new ATLAS ITk pixel system will be installed during the LHC Phase-2 shutdown , to better take advantage of the increased luminosity of the HL-LHC. [...] ATL-ITK-PROC-2018-013. - 2018. - 4 p. Original Communication (restricted to ATLAS) - Full text

2018-08-03
19:47
 Highlights of top quark production measurements at LHC / Shimizu, Shima (KEK, High Energy Accelerator Research Organization) Cross-section measurements of the top quark production at the LHC are presented in this contribution. [...] ATL-PHYS-PROC-2018-084. - 2018. - 7 p. Original Communication (restricted to ATLAS) - Full text

2018-08-01
14:13
 Charmonium Production and HF decay properties at ATLAS / Korn, Andreas (Department of Physics and Astronomy, University College London) The ATLAS collaboration has measured the production of heavy flavoured bottom and charm hadrons in proton--proton collisions at the Large Hadron Collider (LHC) at centre of mass energies of $\sqrt{s}=5.02,7,8$ and $13~\rm TeV$. [...] ATL-PHYS-PROC-2018-083. - 2018. - 7 p. Original Communication (restricted to ATLAS) - Full text

2018-07-31
22:34
 An Ensemble of Neural Networks for Online Filtering Implemented in the ATLAS Trigger System In 2017 the ATLAS experiment implemented an ensemble of neural networks (NeuralRinger algorithm) dedicated to improving the performance of filtering events containing electrons in the high-input rate online environment of the Large Hadron Collider at CERN, Geneva. [...] ATL-DAQ-PROC-2018-016. - 2018. - 8 p. Original Communication (restricted to ATLAS) - Full text

2018-07-31
20:57
 Measurement of angular and momentum distributions of charged-particles within and around jets in Pb+Pb and $pp$ collisions at $\sqrt{s_{NN}}= 5.02$ TeV with ATLAS at the LHC / Puri, Akshat (University of Illinois at Urbana-Champaign) Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma [...] ATL-PHYS-PROC-2018-082. - 2018. - 3 p. Original Communication (restricted to ATLAS) - Full text

2018-07-30
20:44
 The ATLAS High-Level Calorimeter Trigger in Run-2 / Wiglesworth, Craig (Niels Bohr Institute (NBI), University of Copenhagen) The ATLAS Experiment uses a two-level triggering system to identify and record collision events containing a wide variety of physics signatures. [...] ATL-DAQ-PROC-2018-015. - 2018. Original Communication (restricted to ATLAS) - Full text

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ATLAS PUB Notes (2,731)