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

Aaboud, M ; Åkesson, Torsten LU orcid ; Bocchetta, Simona LU ; Doglioni, Caterina LU ; Hedberg, Vincent LU ; Jarlskog, Göran LU ; Kalderon, Charles LU ; Kellermann, Edgar LU ; Lytken, Else LU orcid and Mankinen, Katja LU , et al. (2018) In European Physical Journal C 78(11).
Abstract
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... (More)
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. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
78
issue
11
article number
903
publisher
Springer
external identifiers
  • scopus:85056223624
ISSN
1434-6044
DOI
10.1140/epjc/s10052-018-6288-9
language
English
LU publication?
yes
additional info
Export Date: 22 November 2018
id
533d52e5-5d49-410a-9113-b01e9725c068
date added to LUP
2018-11-22 12:44:21
date last changed
2023-04-08 22:20:00
@article{533d52e5-5d49-410a-9113-b01e9725c068,
  abstract     = {{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.}},
  author       = {{Aaboud, M and Åkesson, Torsten and Bocchetta, Simona and Doglioni, Caterina and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Lytken, Else and Mankinen, Katja and Mjörnmark, Ulf and Pöttgen, Ruth and Poulsen, Trine and Smirnova, Oxana and Viazlo, Oleksandr and Zwalinski, L}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{11}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{Performance of missing transverse momentum reconstruction with the ATLAS detector using proton–proton collisions at √s=13TeV}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-018-6288-9}},
  doi          = {{10.1140/epjc/s10052-018-6288-9}},
  volume       = {{78}},
  year         = {{2018}},
}