# ATLAS Notes

2019-06-21
22:20
 Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector The elliptic flow of charm and bottom decay muons is measured in high-multiplicity \pp collisions at $\sqrt{s}=13$ TeV with an integrated luminosity of 150 pb$^{-1}$ using the ATLAS detector at the LHC. [...] ATLAS-CONF-2019-023. - 2019. Original Communication (restricted to ATLAS) - Full text

2019-06-21
21:20
 Two-particle azimuthal correlations in photo-nuclear ultra-peripheral Pb+Pb collisions at 5.02~TeV with ATLAS This note presents a measurement of two-particle long-range azimuthal correlations in photo-nuclear collisions using 1.73~nb$^{-1}$ of 5.02~TeV~Pb+Pb data collected in 2018 by ATLAS with a dedicated photo-nuclear event trigger. [...] ATLAS-CONF-2019-022. - 2019. Original Communication (restricted to ATLAS) - Full text

2019-06-21
16:18
 $t\bar{t}$+X production at ATLAS and CMS / Riu, Imma (Institut de Fisica d'Altes Energies (IFAE), Barcelona Institute of Science and Technology, Barcelona, Spain) Recent measurements of top-quark pair production in association with W-bosons, Z-bosons, photons and b-tagged jets are reported. [...] ATL-PHYS-PROC-2019-049. - 2019. - 4 p. Original Communication (restricted to ATLAS) - Full text

2019-06-21
16:02
 Development of ATLAS Primary Vertex Reconstruction for LHC Run 3 / Sanderswood, Izaac Gregory (Lancaster University, Department of Physics) Increasing luminosity at the Large Hadron Collider (LHC) poses a challenge for primary vertex reconstruction in ATLAS. [...] ATL-PHYS-PROC-2019-048. - 2019. - 6 p. Original Communication (restricted to ATLAS) - Full text

2019-06-17
13:21
 Measurements of dijet azimuthal decorrelations and extraction of alphaS at ATLAS / Hubacek, Zdenek (Czech Technical University in Prague) The production of jets at hadron colliders provides stringent tests of perturbative QCD. [...] ATL-PHYS-PROC-2019-047. - 2019. - 6 p. Original Communication (restricted to ATLAS) - Full text

2019-06-13
20:34
 Search for Dilepton Resonances / White, Aaron (University of Michigan, Department of Physics) A search for resonances in the dielectron and dimuon mass spectra from 250 GeV to 6 TeV is presented. [...] ATL-PHYS-PROC-2019-046. - 2019. - 5 p. Original Communication (restricted to ATLAS) - Full text

2019-06-13
20:27
 Exotic Higgs decays at the LHC / Snyder, Scott (Brookhaven National Laboratory (BNL)) Many interesting extensions to the Standard Model predict nonstandard decays of the 125 GeV Higgs boson. [...] ATL-PHYS-PROC-2019-045. - 2019. - 5 p. Original Communication (restricted to ATLAS) - Full text

2019-06-12
14:41
 Primary Vertex Selection in VBF Higgs to Invisibles at the HL-LHC with the ATLAS Experiment / Safdari, Murtaza (SLAC National Accelerator Laboratory) ; Schwartzman, Ariel (SLAC National Accelerator Laboratory) ; Cairo, Valentina Maria (SLAC National Accelerator Laboratory) ; Lee, Graham Richard (University of Bergen) ATLAS has developed a new approach for vertex selection in VBF invisible events at HL-LHC conditions, exploiting its new forward tracking capabilities, integrating calorimeter and tracking information to mitigate the impact of pileup vertex merging, and introducing a new way to apply pile-up jet suppression methods for the selection of VBF jets. [...] ATL-PHYS-PROC-2019-044. - 2019. - 5 p. Original Communication (restricted to ATLAS) - Full text

2019-06-12
14:41
 Searching for leptoquarks with the ATLAS detector / Pleskot, Vojtech (Charles University, Faculty of Mathematics and Physics, Prague) Scalar leptoquarks (LQs) were sought using 36.1 fb−1 of pp-collision data at 13 TeV center-of-mass energy. [...] ATL-PHYS-PROC-2019-043. - 2019. - 5 p. Original Communication (restricted to ATLAS) - Full text

2019-06-11
19:00
 ATLAS Measurements of CP Violation and Rare Decays in Beauty Mesons / Walkowiak, Wolfgang (Department Physik, Universitaet Siegen) The ATLAS experiment at the Large Hadron Collider (LHC) has performed accurate measurements of mixing and CP violation in the neutral B mesons, and also of rare processes happening in electroweak FCNC-suppressed neutral B-mesons decays. [...] arXiv:1906.05056 ; ATL-PHYS-PROC-2019-042. - 2019. - 6 p. Original Communication (restricted to ATLAS) - Full text - Fulltext

ATLAS PUB Notes (2,790)