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Performance of the ATLAS forward proton Time-of-Flight detector in Run 2

Aad, G ; Åkesson, T.P.A. LU orcid ; Doglioni, C. LU ; Ekman, P.A. LU ; Hedberg, V. LU ; Herde, H. LU orcid ; Konya, B. LU ; Lytken, E. LU orcid ; Poettgen, R. LU orcid and Simpson, N.D. LU , et al. (2024) In Journal of Instrumentation 19(5).
Abstract
We present performance studies of the Time-of-Flight (ToF) subdetector of the ATLAS Forward Proton (AFP) detector at the LHC. Efficiencies and resolutions are measured using high-statistics data samples collected at low and moderate pile-up in 2017, the first year when the detectors were installed on both sides of the interaction region. While low efficiencies are observed, of the order of a few percent, the resolutions of the two ToF detectors measured individually are 21 ps and 28 ps, yielding an expected resolution of the longitudinal position of the interaction, z vtx, in the central ATLAS detector of 5.3 ± 0.6 mm. This is in agreement with the observed width of the distribution of the difference between z vtx, measured independently... (More)
We present performance studies of the Time-of-Flight (ToF) subdetector of the ATLAS Forward Proton (AFP) detector at the LHC. Efficiencies and resolutions are measured using high-statistics data samples collected at low and moderate pile-up in 2017, the first year when the detectors were installed on both sides of the interaction region. While low efficiencies are observed, of the order of a few percent, the resolutions of the two ToF detectors measured individually are 21 ps and 28 ps, yielding an expected resolution of the longitudinal position of the interaction, z vtx, in the central ATLAS detector of 5.3 ± 0.6 mm. This is in agreement with the observed width of the distribution of the difference between z vtx, measured independently by the central ATLAS tracker and by the ToF detector, of 6.0 ± 2.0 mm. © 2024 CERN for the benefit of the ATLAS collaboration. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
keywords
Cherenkov detectors, Performance of High Energy Physics Detectors, Timing detectors, Vertexing algorithms, High energy physics, Piles, Cherenkov Detectors, High energy physics detector, Performance, Performance of high energy physic detector, Performance study, Subdetectors, Time-of flight, Time-of-flight detectors, Vertexing algorithm, Timing circuits
in
Journal of Instrumentation
volume
19
issue
5
article number
P05054
publisher
IOP Publishing
external identifiers
  • scopus:85197870298
ISSN
1748-0221
DOI
10.1088/1748-0221/19/05/P05054
language
English
LU publication?
yes
id
276d3e03-6df1-46be-8c31-64a4001b05ac
date added to LUP
2024-10-03 08:17:37
date last changed
2025-04-04 14:18:35
@article{276d3e03-6df1-46be-8c31-64a4001b05ac,
  abstract     = {{We present performance studies of the Time-of-Flight (ToF) subdetector of the ATLAS Forward Proton (AFP) detector at the LHC. Efficiencies and resolutions are measured using high-statistics data samples collected at low and moderate pile-up in 2017, the first year when the detectors were installed on both sides of the interaction region. While low efficiencies are observed, of the order of a few percent, the resolutions of the two ToF detectors measured individually are 21 ps and 28 ps, yielding an expected resolution of the longitudinal position of the interaction, z vtx, in the central ATLAS detector of 5.3 ± 0.6 mm. This is in agreement with the observed width of the distribution of the difference between z vtx, measured independently by the central ATLAS tracker and by the ToF detector, of 6.0 ± 2.0 mm. © 2024 CERN for the benefit of the ATLAS collaboration.}},
  author       = {{Aad, G and Åkesson, T.P.A. and Doglioni, C. and Ekman, P.A. and Hedberg, V. and Herde, H. and Konya, B. and Lytken, E. and Poettgen, R. and Simpson, N.D. and Smirnova, O. and Wallin, E.J. and Zwalinski, L}},
  issn         = {{1748-0221}},
  keywords     = {{Cherenkov detectors; Performance of High Energy Physics Detectors; Timing detectors; Vertexing algorithms; High energy physics; Piles; Cherenkov Detectors; High energy physics detector; Performance; Performance of high energy physic detector; Performance study; Subdetectors; Time-of flight; Time-of-flight detectors; Vertexing algorithm; Timing circuits}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Instrumentation}},
  title        = {{Performance of the ATLAS forward proton Time-of-Flight detector in Run 2}},
  url          = {{http://dx.doi.org/10.1088/1748-0221/19/05/P05054}},
  doi          = {{10.1088/1748-0221/19/05/P05054}},
  volume       = {{19}},
  year         = {{2024}},
}