Heavy metals in the liver and muscle of Micropogonias manni fish from Budi Lake, Araucania Region, Chile: potential risk for humans

The concentrations of cadmium, lead, manganese and zinc were determined in the fish species Micropogonias manni captured in Budi Lake, Araucanía Region (Chile). The measurements were made by atomic absorption spectroscopy, and the analysis considered the sex, weight and size of the species; the representative samples were taken from the liver and muscle tissue. The method was validated using certified reference material (DOLT-1). The ranges of concentrations found in the muscle tissue were: Cd, not determinate (n.d.)-0.26; Pb, n.d.-1.88; Mn, 0.02-12.17 and Zn, 0.48-39.04 mg kg-1 (dry weight). The concentrations in muscle tissue were generally lower than those found in the liver. With respect to the average concentrations recorded for each metal in the edible part of the fish (muscle tissue), it was found that the levels of Cd, Pb, Mn and Zn are within the ranges published by other authors in similar works and below the maximum concentration limits permitted by current legislation (FAO/WHO 2004; EU 2001) and do not constitute a health hazard for consumers of this species. The results were subjected to statistical analysis to evaluate the correlations between the content of the various metals and the sex, weight and size of each sample. © 2011 Springer Science+Business Media B.V

High prevalence of Pneumocystis jirovecii pneumonia among Mozambican children < 5 years of age admitted to hospital with clinical severe pneumonia

We aimed to describe Pneumocystis jirovecii pneumonia (PCP) prevalence and features in children from sub-Saharan Africa, and to investigate PCP-associated risk factors. During 2006-2007 we used molecular methods to test children younger than 5 years old admitted with severe pneumonia to a hospital in Southern Mozambique for Pneumocystis infection. We recruited 834 children. PCP prevalence was 6.8% and HIV prevalence was 25.7%. The in-hospital and delayed mortality were significantly higher among children with PCP (20.8% vs. 10.2 %, p=0.021, and 11.5% vs. 3.6%, p=0.044, respectively). Clinical features were mostly overlapping between the two groups. Independent risk factors for PCP were age less than a year (OR 6.34, 95%CI 1.86-21.65), HIV infection (OR 2.99, 95%CI 1.16-7.70), grunting (OR 2.64, 95%CI 1.04-6.73), and digital clubbing (OR 10.75, 95%CI 1.21-95.56). PCP is a common and life-threatening cause of severe pneumonia in Mozambican children. Mother-to-child HIV transmission prevention should be strengthened. Better diagnostic tools are needed

Performance of electron and photon triggers in ATLAS during LHC Run 2.

Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton and heavy-ion collisions. To cope with a fourfold increase of peak LHC luminosity from 2015 to 2018 (Run 2), to 2.1×1034 cm−2 s −1 , and a similar increase in the number of interactions per beam-crossing to about 60, trigger algorithms and selections were optimised to control the rates while retaining a high efficiency for physics analyses. For proton–proton collisions, the single-electron trigger efficiency relative to a single-electron offline selection is at least 75% for an offline electron of 31 GeV, and rises to 96% at 60 GeV; the trigger efficiency of a 25 GeV leg of the primary diphoton trigger relative to a tight offline photon selection is more than 96% for an offline photon of 30 GeV. For heavy-ion collisions, the primary electron and photon trigger efficiencies relative to the corresponding standard offline selections are at least 84% and 95%, respectively, at 5 GeV above the corresponding trigger threshold.Fil: Wahlberg, Hernan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alconada Verzini, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universitat Tel Aviv; IsraelFil: Alonso, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Arduh, Francisco Anuar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Hoya, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Orellana, Gonzalo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Abed Abud, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ahmad,A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Alderweireldt, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aleksa, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Allaire, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aranzabal Barrio, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bielski, R.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bortfeldt, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Boyd, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Butti, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Buttinger, W.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Camincher, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Campana, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ellis, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Elsing, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Morley, A. K.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Mornacchi, G.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Moschovakos, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meehan, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meng, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stewart, G. A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stockton, M. C.. Cern - European Organization For Nuclear Research. The Cern Council; Suiz

Operation of the ATLAS trigger system in run 2

The ATLAS experiment at the Large Hadron Collider employs a two-level triggersystem to record data at an average rate of 1 kHz from physics collisions,starting from an initial bunch crossing rate of 40 MHz. During the LHC Run 2(2015-2018), the ATLAS trigger system operated successfully with excellentperformance and flexibility by adapting to the various run conditionsencountered and has been vital for the ATLAS Run-2 physics programme. Forproton-proton running, approximately 1500 individual event selections wereincluded in a trigger menu which specified the physics signatures and selectionalgorithms used for the data-taking, and the allocated event rate andbandwidth. The trigger menu must reflect the physics goals for a given datacollection period, taking into account the instantaneous luminosity of the LHCand limitations from the ATLAS detector readout, online processing farm, andoffline storage. This document discusses the operation of the ATLAS triggersystem during the nominal proton-proton data collection in Run 2 with examplesof special data-taking runs. Aspects of software validation, evolution of thetrigger selection algorithms during Run 2, monitoring of the trigger system anddata quality as well as trigger configuration are presented.Fil: Aad, G.. Aix-Marseille Université; FranciaFil: Abbott, B.. Oklahoma State University; Estados UnidosFil: Abbott, D.C.. University of Massachusetts; Estados UnidosFil: Abed Abud, A.. Cern - European Organization for Nuclear Research; SuizaFil: Abeling, K.. Georg-August-Universität Göttingen; AlemaniaFil: Abhayasinghe, D.K.. Royal Holloway University of London; Reino UnidoFil: Abidi, S. H.. University of Toronto; CanadáFil: AbouZeid, O. S.. Czech Academy of Sciences; República ChecaFil: Abraham, N. L.. University of Sussex; Reino UnidoFil: Abramowicz, H.. Universitat Tel Aviv; IsraelFil: Abreu, H.. Technion - Israel Institute of Technology; IsraelFil: Abreu, R.. University of Oregon; Estados UnidosFil: Abulaiti, Y.. Argonne National Laboratory; Estados UnidosFil: Acharya, B. S.. Istituto Nazionale di Fisica Nucleare; Italia. The Abdus Salam. International Centre for Theoretical Physics; ItaliaFil: Achkak, B.. Georg-August-Universität Göttingen; AlemaniaFil: Adam, L.. University of Montreal; CanadáFil: Adam Bourdarios, C.. Universite Grenoble Alpes; Francia. Université Savoie Mont Blanc; FranciaFil: Adamczyk, L.. AGH University of Science and Technology; PoloniaFil: Adamek, L.. University of Toronto; CanadáFil: Adelman, J.. Northern Illinois University; Estados UnidosFil: Adersberger, M.. Ludwig-Maximilians-Universität München; AlemaniaFil: Adiguzel, A.. Bogazici University; TurquíaFil: Adorni,S.. Université de Genève; SuizaFil: Adye, T.. Universite Paris-Saclay;Fil: Affolder, A. A.. University of California Santa Cruz; Estados UnidosFil: Afik, Y.. Technion - Israel Institute of Technology; IsraelFil: Agapopoulou, C.. Universite Paris-Saclay;Fil: Agaras, M. N.. Université Clermont Auvergne; Francia. Centre National de la Recherche Scientifique; FranciaFil: Aggarwal, A.. Radboud Universiteit Nijmegen; Países BajosFil: Orellana, Gonzalo Enrique. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentin

Measurement of prompt photon production in sNN 8.16 TeV p+Pb collisions with ATLAS

The inclusive production rates of isolated, prompt photons in collisions at TeV are studied with the ATLAS detector at the Large Hadron Collider using a dataset with an integrated luminosity of 165 nb−1 recorded in 2016. The cross-section and nuclear modification factor are measured as a function of photon transverse energy from 20 GeV to 550 GeV and in three nucleon–nucleon centre-of-mass pseudorapidity regions, , , and . The cross-section and values are compared with the results of a next-to-leading-order perturbative QCD calculation, with and without nuclear parton distribution function modifications, and with expectations based on a model of the energy loss of partons prior to the hard scattering. The data disfavour a large amount of energy loss and provide new constraints on the parton densities in nuclei.Fil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Atlas Experiment, Cern; SuizaFil: Alconada Verzini, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alonso, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Arduh, Francisco Anuar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Hoya, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Orellana, Gonzalo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Wahlberg, Hernan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Abed Abud, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ahmad, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Alderweireldt, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aleksa, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bielski, R.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bortfeldt, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Boyd, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Butti, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Buttinger, W.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Camincher, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Campana, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ellis, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Elsing, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Farthouat, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Fassnacht, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Heinrich, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Iengo, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Morley, A. K.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Mornacchi, G.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meng, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stewart, G. A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stockton, M. C.. Cern - European Organization For Nuclear Research. The Cern Council; Suiz

Electron and photon energy calibration with the ATLAS detector using 2015-2016 LHC proton-proton collision data

This paper presents the electron and photon energy calibration obtained with the ATLAS detector using about 36 fb−1 of LHC proton-proton collision data recorded at √s=13 TeV in 2015 and 2016. The different calibration steps applied to the data and the optimization of the reconstruction of electron and photon energies are discussed. The absolute energy scale is set using a large sample of Z boson decays into electron-positron pairs. The systematic uncertainty in the energy scale calibration varies between 0.03% to 0.2% in most of the detector acceptance for electrons with transverse momentum close to 45 GeV . For electrons with transverse momentum of 10 GeV the typical uncertainty is 0.3% to 0.8% and it varies between 0.25% and 1% for photons with transverse momentum around 60 GeV . Validations of the energy calibration with J/ψ → e+e− decays and radiative Z boson decays are also presented.Fil: Hoya, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alconada Verzini, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alonso, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Orellana, Gonzalo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Wahlberg, Hernan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Abed Abud, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ahmad, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Alderweireldt, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aleksa, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bielski, R.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bortfeldt, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Boyd, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Butti, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Buttinger, W.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Iengo, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Camincher, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Campana, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ellis, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Elsing, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Farthouat, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Fassnacht, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Heinrich, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Morley, A. K.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Mornacchi, G.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meng, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meng, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stewart, G. A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stockton, M. C.. Cern - European Organization For Nuclear Research. The Cern Council; Suiz

ATLAS data quality operations and performance for 2015–2018 data-taking

The ATLAS detector at the Large Hadron Collider reads out particle collision data from over 100 million electronic channels at a rate of approximately 100 kHz, with a recording rate for physics events of approximately 1 kHz. Before being certified for physics analysis at computer centres worldwide, the data must be scrutinised to ensure they are clean from any hardware or software related issues that may compromise their integrity. Prompt identification of these issues permits fast action to investigate, correct and potentially prevent future such problems that could render the data unusable. This is achieved through the monitoring of detector-level quantities and reconstructed collision event characteristics at key stages of the data processing chain. This paper presents the monitoring and assessment procedures in place at ATLAS during 2015–2018 data-taking. Through the continuous improvement of operational procedures, ATLAS achieved a high data quality efficiency, with 95.6% of the recorded proton-proton collision data collected at √ s = 13 TeV certified for physics analysis.Fil: Wahlberg, Hernan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alconada Verzini, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv; IsraelFil: Alonso, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Arduh, Francisco Anuar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Hoya, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Orellana, Gonzalo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Abed Abud, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ahmad, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Alderweireldt, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aleksa, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bielski, R.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bortfeldt, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Boyd, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Butti, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Buttinger, W.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Camincher, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Campana, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ellis, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Elsing, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Farthouat, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Fassnacht, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Heinrich, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Iengo, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Morley, A. K.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Mornacchi, G.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meng, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stewart, G.A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Stockton, M. C.. Cern - European Organization For Nuclear Research. The Cern Council; Suiz

ATLAS data quality operations and performance for 2015-2018 data-taking

The ATLAS detector at the Large Hadron Collider reads out particle collision data from over 100 million electronic channels at a rate of approximately 100 kHz, with a recording rate for physics events of approximately 1 kHz. Before being certified for physics analysis at computer centres worldwide, the data must be scrutinised to ensure they are clean from any hardware or software related issues that may compromise their integrity. Prompt identification of these issues permits fast action to investigate, correct and potentially prevent future such problems that could render the data unusable. This is achieved through the monitoring of detector-level quantities and reconstructed collision event characteristics at key stages of the data processing chain. This paper presents the monitoring and assessment procedures in place at ATLAS during 2015–2018 data-taking. Through the continuous improvement of operational procedures, ATLAS achieved a high data quality efficiency, with 95.6% of the recorded proton-proton collision data collected at √s=13 TeV certified for physics analysis.Fil: Orellana, Gonzalo Enrique. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alconada Verzini, María Josefina. Tel Aviv University; Israel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Arduh, Francisco Anuar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Hoya, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Wahlberg, Hernan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Abed Abud, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ahmad, A.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Alderweireldt, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aleksa, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Allaire, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Aranzabal Barrio, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bielski, R.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Bortfeldt, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Boyd, J.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Butti, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Buttinger, W.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Camincher, C.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Campana, S.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Ellis, N.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Elsing, M.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Farthouat, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Fassnacht, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Heinrich, L.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Iengo, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Morley, A. K.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Mornacchi, G. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Moschovakos, P.. Cern - European Organization For Nuclear Research. The Cern Council; SuizaFil: Meehan, S.. Cern - European Organization For Nuclear Research. The Cern Council; Suiz