Aad, G.Abbott, B.Beddall, Andrew JohnÇetin, Serkant AliÖztürk, SertaçŞimşek, SinemUysal, Zekeriya2025-04-182025-04-182024ATLAS Collaboration. (2024). Performance of the ATLAS forward proton Time-of-Flight detector in Run 2. arXiv preprint arXiv:2402.06438.17480221http://dx.doi.org/10.1088/1748-0221/19/05/P05054https://hdl.handle.net/20.500.12713/7175We 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.eninfo:eu-repo/semantics/openAccessCherenkov DetectorsPerformance of High Energy Physics DetectorsTiming DetectorsVertexing AlgorithmsArticle195146WOS:0012614657000012-s2.0-85197870298Q310.1088/1748-0221/19/05/P05054Q2