# ATLAS Notes

2020-01-21
21:23
 FELIX: The New Readout System for the ATLAS Detector / Trovato, Marco (Argonne National Laboratory) After the current LHC shutdown (2019-2021), the ATLAS experiment at the LHC at CERN will be required to operate in an increasingly harsh collision environment. [...] ATL-DAQ-PROC-2020-002. - 2020. - 3 p. Original Communication (restricted to ATLAS) - Full text

2020-01-15
13:41
 Single- and and double-differential cross-sections in ttbar final states in the lepton+jets channel / Kvita, Jiri (Palacky University, RCPTM) We present measurements of single- and double-differential cross-sections in ttbar final states in the lepton+jets channel, unfolded to particle and parton levels with both resolved and boosted topologies considered. [...] ATL-PHYS-PROC-2020-005. - 2020. - 5 p. Original Communication (restricted to ATLAS) - Full text

2020-01-15
13:40
 Overview of Recent Results from ATLAS / Wiglesworth, Craig (Niels Bohr Institute (NBI), University of Copenhagen) This paper presents an overview of recent results from the ATLAS Experiment at the CERN Large Hadron Collider, with a particular focus on those that are based on the entire Run 2 dataset of $\sqrt{s}$=13~TeV proton-proton collisions. [...] ATL-PHYS-PROC-2020-004. - 2020. - 8 p. Original Communication (restricted to ATLAS) - Full text

2020-01-12
09:30
 Simultaneous Jet Energy and Mass Calibrations with Neural Networks The jet mass is one of the most important observables for identifying boosted, hadronically decaying, massive particles. [...] ATL-PHYS-PUB-2020-001. - 2020. Original Communication (restricted to ATLAS) - Full text

2020-01-10
14:25
 Performance and upgrade of the ATLAS Tile Calorimeter / Solodkov, Alexander (Institute for High Energy Physics of the National Research Centre Kurchatov Institute, Protvino) The Tile Calorimeter (TileCal) is the hadronic calorimeter covering the central region of the ATLAS experiment. [...] ATL-TILECAL-PROC-2020-001. - 2020. - 4 p. Original Communication (restricted to ATLAS) - Full text

2020-01-09
15:49
 The Operational Experience, Challenges and Performance of the ATLAS Semiconductor Tracker during LHC Run-2 / Hirose, Shigeki (Albert-Ludwigs-Universitaet Freiburg) The Large Hadron Collider (LHC) completed its Run-2 operation period from 2015 through 2018, which delivered an integrated luminosity of 156~fb$^{-1}$ at a centre-of-mass $pp$ collision energy of 13~TeV. [...] ATL-INDET-PROC-2020-002. - 2020. - 9 p. Original Communication (restricted to ATLAS) - Full text

2020-01-09
14:32
 The ATLAS Electron and Photon Trigger Performance in Run 2 / Koeck, Daniela Maria (University of Sussex) Electron and photon trigger at the ATLAS detector are an important part in many physics analyses in ATLAS, targeting electrons and photons as final state or using them for validation purposes. [...] ATL-DAQ-PROC-2020-001. - 2020. - 11 p. Original Communication (restricted to ATLAS) - Full text

2020-01-09
10:32
 The ATLAS ITk Strip Detector System for the Phase-II LHC Upgrade / Wonsak, Sven (University of Liverpool) ; ATLAS Collaboration The ATLAS experiment at the Large Hadron Collider is currently preparing for a major upgrade of the Inner Tracking for the Phase-II LHC operation (known as HL-LHC), scheduled to start in 2026. [...] ATL-ITK-PROC-2020-001. - 2020. - 9 p. Original Communication (restricted to ATLAS) - Full text

2020-01-09
10:31
 Measurement of the CP-violating phase $\phi_s$ in $B_s^0 \rightarrow J/\psi \left(\mu^+\mu^-\right) + \phi\left(K^+K^-\right)$ decays / Novotny, Lukas (Czech Technical University in Prague) The CP violating phase $\phi_s$ arises from the interference between the $B_s^0$ direct decays and decays with the $B_s^0 - \bar{B_s^0}$ mixing. [...] ATL-PHYS-PROC-2020-003. - 2020. - 5 p. Original Communication (restricted to ATLAS) - Full text

2020-01-08
18:29
 Rare and Semi-rare Decays in ATLAS / Walkowiak, Wolfgang (Department Physik, Universitaet Siegen) The ATLAS experiment at the Large Hadron Collider (LHC) has performed measurements of the rare flavor-changing neutral-current processes $b \to s\,\mu^+\mu^-$ and $B^0_{(s)}\to \mu+\mu^-$ which are sensitive to New Physics effects. [...] ATL-PHYS-PROC-2020-002. - 2020. - 8 p. Original Communication (restricted to ATLAS) - Full text

ATLAS PUB Notes (2,815)