Journal
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ELSEVIER
DOI: 10.1016/j.nima.2022.166825
Keywords
FASER; LHC; Silicon microstrip detectors; Tracking detectors
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Funding
- Heising-Simons Foundation, USA [2018-1135, 2019-1179, 2020-1840]
- Simons Foundation, USA [623683]
- U.S. National Science Foundation [PHY-2111427, PHY-2110929, PHY-2110648]
- JSPS, Japan KAKENHI [JP19H01909, JP20 K23373, JP20H01919, JP20K04004, JP21H00082]
- Swiss National Science Foundation
- Tsinghua University, China Initiative Scientific Research Program
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This paper presents the design, construction, and testing of the tracking spectrometer in the FASER detector, which is capable of detecting the decay products of LLPs and performing neutrino analysis. It also discusses the installation progress and the plan for data collection when the LHC resumes operation in 2022.
collision axis. The FASER detector includes four identical tracker stations constructed from silicon microstrip detectors. Three of the tracker stations form a tracking spectrometer, and enable FASER to detect the decay products of LLPs decaying inside the apparatus, whereas the fourth station is used for the neutrino analysis. The spectrometer has been installed in the LHC complex since March 2021, while the fourth station is not yet installed. FASER will start physics data taking when the LHC resumes operation in early 2022. This paper describes the design, construction and testing of the tracking spectrometer, including the associated components such as the mechanics, readout electronics, power supplies and cooling system.
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