Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √ s = 13 TeV
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Atlas Collaboration. (2018). Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at√ s= 13TeV. European Physical Journal C, 78(11), 903. [https://doi.org/10.1140/epjc/s10052-018-6288-9]
SponsorshipANPCyT; YerPhI, Armenia; Australian Research Council; BMWFW, Austria; Austrian Science Fund (FWF); Azerbaijan National Academy of Sciences (ANAS); SSTC, Belarus; National Council for Scientific and Technological Development (CNPq); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Natural Sciences and Engineering Research Council of Canada; Canada Foundation for Innovation; Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT); National Natural Science Foundation of China (NSFC); Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias; Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government; Czech Republic Government; DNRF, Denmark; Danish Natural Science Research Council; CEA-DRF/IRFU, France; Federal Ministry of Education & Research (BMBF); Max Planck Society; Greek Ministry of Development-GSRT; Hong Kong Research Grants Council; I-CORE, Israel; Benoziyo Center, Israel; Istituto Nazionale di Fisica Nucleare (INFN); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science; Netherlands Organization for Scientific Research (NWO) Netherlands Government; RCN, Norway; Ministry of Science and Higher Education, Poland; NCN, Poland; Portuguese Foundation for Science and Technology; MNE/IFA, Romania; MESTD, Serbia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MIZS, Slovenia; MINECO, Spain; Wallenberg Foundation, Sweden; Japanese Urological Association; Ministry of Science and Technology, Taiwan; Ministry of Energy & Natural Resources - Turkey; Science & Technology Facilities Council (STFC); United States Department of Energy (DOE); National Science Foundation (NSF); BCKDF; FQRNT; Ontario Innovation Trust, Canada; European Union (EU) European Research Council (ERC); French National Research Agency (ANR); Fondation Partager le Savoir, France; German Research Foundation (DFG); Greek Ministry of Development-GSRT; US-Israel Binational Science Foundation; Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya; Generalitat Valenciana; Royal Society of London; Leverhulme Trust; NRC, Canada; CERN, Chile; Chinese Academy of Sciences; Ministry of Science and Technology, China; IN2P9-CNRS, France; IIGF, Germany; ISF, Isreael; CNRST, Morocco; MES of Russia; NRC KI, Russian Federation; JINR; DST/NRF, South Africa; SERI; Swiss National Science Foundation (SNSF; Canton of Geneva; Canton of Switzerland; Canada Council; CANARIE; Australian Government Department of Industry, Innovation and Science Cooperative Research Centres (CRC) Programme; Compute Canada; European Union (EU); Horizon 2020, European Union; National Science Foundation (NSF) NSF - Directorate for Mathematical & Physical Sciences (MPS) 1624739
The performance of the missing transverse (E-T(miss) momentum) reconstruction with the ATLAS detector is evaluated using data collected in proton-proton collisions at the LHC at a centre-of-mass energy of 13 TeV in 2015. To reconstruct E-T(miss), fully calibrated electrons, muons, photons, hadronically decaying tau-leptons, and jets reconstructed from calorimeter energy deposits and charged-particle tracks are used. These are combined with the soft hadronic activity measured by reconstructed charged-particle tracks not associated with the hard objects. Possible double counting of contributions from reconstructed charged-particle tracks from the inner detector, energy deposits in the calorimeter, and reconstructed muons from the muon spectrometer is avoided by applying a signal ambiguity resolution procedure which rejects already used signals when combining the various E-T(miss) contributions. The individual terms as well as the overall reconstructed E-T(miss) are evaluated with various performance metrics for scale (linearity), resolution, and sensitivity to the data-taking conditions. The method developed to determine the systematic uncertainties of the E-T(miss) scale and resolution is discussed. Results are shown based on the full 2015 data sample corresponding to an integrated luminosity of 3.2 fb(-1).