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

UNSPECIFIED (2024) Performance of the ATLAS forward proton Time-of-Flight detector in Run 2. Journal of Instrumentation, 19 (05): P05054. ISSN 1748-0221

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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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Instrumentation
Uncontrolled Keywords:
?? performance of high energy physics detectorscherenkov detectorstiming detectorsvertexing algorithmsinstrumentationmathematical physics ??
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Deposited On:
22 May 2024 10:10
Last Modified:
30 May 2024 01:21