Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV

The performance of the missing transverse momentum (ETmiss) 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 ETmiss, fully calibrated electrons, muons, photons, hadronically de...

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Autor principal: Aaboud, M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v78_n11_p_Aaboud
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14346044_v78_n11_p_Aaboud2023-10-03T16:15:32Z Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV Aaboud, M. The performance of the missing transverse momentum (ETmiss) 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 ETmiss, fully calibrated electrons, muons, photons, hadronically decaying τ-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 ETmiss contributions. The individual terms as well as the overall reconstructed ETmiss 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 ETmiss scale and resolution is discussed. Results are shown based on the full 2015 data sample corresponding to an integrated luminosity of 3.2fb-1. © 2018, CERN for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v78_n11_p_Aaboud
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The performance of the missing transverse momentum (ETmiss) 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 ETmiss, fully calibrated electrons, muons, photons, hadronically decaying τ-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 ETmiss contributions. The individual terms as well as the overall reconstructed ETmiss 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 ETmiss scale and resolution is discussed. Results are shown based on the full 2015 data sample corresponding to an integrated luminosity of 3.2fb-1. © 2018, CERN for the benefit of the ATLAS collaboration.
format JOUR
author Aaboud, M.
spellingShingle Aaboud, M.
Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV
author_facet Aaboud, M.
author_sort Aaboud, M.
title Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV
title_short Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV
title_full Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV
title_fullStr Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV
title_full_unstemmed Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV
title_sort performance of missing transverse momentum reconstruction with the atlas detector using proton–proton collisions at √s=13tev
url http://hdl.handle.net/20.500.12110/paper_14346044_v78_n11_p_Aaboud
work_keys_str_mv AT aaboudm performanceofmissingtransversemomentumreconstructionwiththeatlasdetectorusingprotonprotoncollisionsats13tev
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