Performance of the ATLAS forward proton Time-of-Flight detector in Run 2
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866910465018298368 |
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| author | ATLAS Collaboration |
| author_facet | ATLAS Collaboration |
| contents | 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 $5.3 \pm 0.6$ 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 $6.0 \pm 2.0$ mm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_06438 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Performance of the ATLAS forward proton Time-of-Flight detector in Run 2 ATLAS Collaboration Instrumentation and Detectors High Energy Physics - Experiment 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 $5.3 \pm 0.6$ 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 $6.0 \pm 2.0$ mm. |
| title | Performance of the ATLAS forward proton Time-of-Flight detector in Run 2 |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2402.06438 |