# ATLAS Conference Contributions

2020-09-18
16:00
 Top Quark Properties from ATLAS / Young, Christopher (European Laboratory for Particle Physics, CERN) Results of analyses of top quark properties measured at the LHC are presented on behalf of the ATLAS Collaboration. [...] ATL-PHYS-PROC-2020-061. - 2020. - 4 p. Original Communication (restricted to ATLAS) - Full text

2020-09-17
07:49
 Measurement of transverse flow and longitudinal flow decorrelations in $\sqrt{s_{\mathrm{NN}}}$=5.44~TeV Xe+Xe collisions with ATLAS / Behera, Arabinda (Stony Brook University) Measurement of flow harmonics $v_n$ for $n=2$, 3 and 4 and their longitudinal decorrelations in 3~${\mu}\textrm{b}^{-1}$ of Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}$=5.44~TeV performed with the ATLAS detector at the LHC are presented. [...] ATL-PHYS-PROC-2020-060. - 2020. Original Communication (restricted to ATLAS) - Full text

2020-09-16
10:47
 Inclusive and differential $t\bar{t}$ cross-sections in ATLAS experiment / Jacka, Petr (Institute of Physics of the Czech Academy of Sciences) The latest results of inclusive and differential $t\bar{t}$ cross-section measurements in the ATLAS experiment at CERN are presented. [...] ATL-PHYS-PROC-2020-059. - 2020. - 4 p. Original Communication (restricted to ATLAS) - Full text

2020-09-15
15:32
 ATLAS Public Engagement: The CERN Open Days Experience / Pereira Peixoto, Ana Paula (Laboratorio de Instrumenta\c{c}\~ao e Fisica Experimental de Particulas - LIP, Lisbon) ; Mehlhase, Sascha (Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen) ; Sfyrla, Anna (Departement de Physique Nucleaire et Corpusculaire, Universite de Geneve) ; Marzin, Antoine (European Laboratory for Particle Physics, CERN) ; Helary, Louis (DESY, Hamburg and Zeuthen) The ATLAS experiment at the Large Hadron Collider is collecting unprecedented amounts of proton–proton collision data. [...] ATL-OREACH-PROC-2020-004. - 2020. - 3 p. Original Communication (restricted to ATLAS) - Full text

2020-09-15
15:17
 Higgs measurements in 3rd generation decay channels (excl. ttH) with ATLAS and CMS / Jiggins, Stephen (Albert-Ludwigs-Universitaet Freiburg) LHCP 2020 conference proceedings for "Higgs measurements in 3rd generation decay channels (excl [...] ATL-PHYS-PROC-2020-058. - 2020. - 8 p. Original Communication (restricted to ATLAS) - Full text

2020-09-15
15:12
 Small-Strip Thin Gap Chambers for the Muon Spectrometer Upgrade of the ATLAS Experiment / Canesse, Auriane (McGill University, Department of Physics) The instantaneous luminosity of the Large Hadron Collider at CERN will be increased by about a factor of five with respect to the design value by undergoing an extensive upgrade program over the coming decade. [...] ATL-MUON-PROC-2020-013. - 2020. - 5 p. Original Communication (restricted to ATLAS) - Full text

2020-09-15
10:02
 Projected ATLAS Electron and Photon Trigger Performance in Run 3 / Orellana, Gonzalo Enrique (Universidad National de La Plata (UNLP)) ; ATLAS Collaboration ATLAS electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena. [...] ATL-DAQ-PROC-2020-014. - 2020. - 5 p. Original Communication (restricted to ATLAS) - Full text

2020-09-15
07:12
 Searches for dark photon with the ATLAS detector at the LHC / El Jarrari, Hassnae (University Mohammed V in Rabat) Many extensions to the Standard Model (SM) introduce a hidden or dark sector (DS) to provide candidates for dark matter in the universe and an explanation to astrophysical observations such as the positron excess observed in the cosmic radiation flux. [...] ATL-PHYS-PROC-2020-057. - 2020. - 5 p. Original Communication (restricted to ATLAS) - Full text

2020-09-14
19:12
 The ATLAS Hardware Track Trigger performance studies for the HL-LHC / Moreira De Carvalho, Ana Luisa (Laboratorio de Instrumenta\c{c}\~ao e Fisica Experimental de Particulas - LIP, Lisbon) For the High-Luminosity LHC, planned to start in 2027, the ATLAS experiment will be equipped with the Hardware Tracking for the Trigger system (HTT), a dedicated hardware system able to reconstruct tracks in the silicon detectors with short latency. [...] ATL-DAQ-PROC-2020-013. - 2020. - 5 p. Original Communication (restricted to ATLAS) - Full text

2020-09-14
16:27
 Searches for long-lived particles in ATLAS / Saito, Masahiko (International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo) Several models beyond the Standard Model predict new particles which could have a significant lifetime owing to the mass-degeneracy, heavy intermediate particles or small coupling to the lighter particles. [...] ATL-PHYS-PROC-2020-056. - 2020. - 6 p. Original Communication (restricted to ATLAS) - Full text