# ATLAS Notes

2019-09-22
12:33
 Measurements of inclusive and differential cross-sections of $t\bar{t}\gamma$ production in the $e\mkern-2mu\mu$ channel at 13 TeV with the ATLAS detector Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 139 fb$^{-1}$. [...] ATLAS-CONF-2019-042. - 2019. Original Communication (restricted to ATLAS) - Full text

2019-09-22
10:21
 PROSPECTS FOR PHOTON-PHOTON MEASUREMENTS WITH TAGGED PROTONS IN ATLAS / Trzebinski, Maciej (Institute of Nuclear Physics Polish Academy of Sciences, Krakow) In 2017, ATLAS has been equipped with a new, dedicated detector system allowing measurements of forward protons scattered at small angles in diffractive and electromagnetic processes. [...] ATL-PHYS-PROC-2019-096. - 2019. - 6 p. Original Communication (restricted to ATLAS) - Full text

2019-09-19
22:55
 Track-counting luminosity measurement in ATLAS / Pasuwan, Patrawan (Stockholm University) At the LHC, the number of inelastic proton-proton collisions per second is proportional to the luminosity. [...] ATL-PHYS-PROC-2019-095. - 2019. - 5 p. Original Communication (restricted to ATLAS) - Full text

2019-09-16
21:59
 Highlights of top-quark properties measurements at the ATLAS experiment / Majersky, Oliver (Comenius University) The top quark is the heaviest known fundamental particle. [...] ATL-PHYS-PROC-2019-094. - 2019. - 8 p. Original Communication (restricted to ATLAS) - Full text

2019-09-16
15:20
 HBSM working group hMSSM summary plots This note presents an update to the hMSSM summary plots. [...] ATL-PHYS-PUB-2019-034. - 2019. - 6 p. Original Communication (restricted to ATLAS) - Full text

2019-09-15
20:36
 Measurements of the Higgs boson decays to two bottom quarks / Ambroz, Luca (University of Oxford, Particle Physics) $H \rightarrow b\bar{b}$ decays allow to probe the Yukawa coupling of the Higgs boson to down type quarks. [...] ATL-PHYS-PROC-2019-093. - 2019. - 5 p. Original Communication (restricted to ATLAS) - Full text

2019-09-15
15:58
 ATLAS Trigger and Data Acquisition Upgrades for the High Luminosity LHC / Camplani, Alessandra (Niels Bohr Institute (NBI), University of Copenhagen) The ATLAS experiment at CERN has started the construction of upgrades for the "High Luminosity LHC", with collisions due to start in 2026. [...] ATL-DAQ-PROC-2019-018. - 2019. - 6 p. Original Communication (restricted to ATLAS) - Full text

2019-09-14
23:19
 Determination of proton parton distribution functions using ATLAS data / Giuli, Francesco (INFN Roma Tor Vergata and Universita' di Roma Tor Vergata, Dipartimento di Fisica) Proceeding of an ATLAS talk given during EPS-HEP 2019 (Ghent, Belgium). [...] ATL-PHYS-PROC-2019-092. - 2019. - 7 p. Original Communication (restricted to ATLAS) - Full text

2019-09-14
23:09
 Upgrade of the ATLAS Tile Calorimeter for the High Luminosity LHC / Petukhova, Krystsina (Charles University, Faculty of Mathematics and Physics, Prague) The Tile Calorimeter (TileCal) is the hadronic calorimeter covering the central region of the ATLAS experiment. [...] ATL-TILECAL-PROC-2019-005. - 2019. - 3 p. Original Communication (restricted to ATLAS) - Full text

2019-09-14
23:07
 Implementation of the ATLAS trigger within the multi-threaded AthenaMT framework / Elliot, Alison (Queen Mary University of London) ; ATLAS Collaboration Athena is the software framework used in the ATLAS experiment throughout the data process- ing path, from the software trigger system through offline event reconstruction to physics analy- sis. [...] ATL-DAQ-PROC-2019-017. - 2019. - 4 p. Original Communication (restricted to ATLAS) - Full text

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ATLAS PUB Notes (2,803)