The tracking detector of the FASER experiment

Abstract

FASER is a new experiment designed to search for new light weakly-interacting long-lived particles (LLPs) and study high-energy neutrino interactions in the very forward region of the LHC collisions at CERN. The experimental apparatus is situated 480 m downstream of the ATLAS interaction-point aligned with the beam 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.

References in corpus (4)

• Technical Proposal for FASER: ForwArd Search ExpeRiment at the LHC
• Operation and performance of the ATLAS semiconductor tracker
• The trigger and data acquisition system of the FASER experiment
• Operation and performance of the ATLAS semiconductor tracker in LHC Run 2

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• First Measurement of the Muon Neutrino Interaction Cross Section and Flux as a Function of Energy at the LHC with FASER
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• Neutrino Detection without Neutrino Detectors: Discovering Collider Neutrinos at FASER with Electronic Signals Only
• Leptoquark search at the Forward Physics Facility
• Neutrino Experiments at the Large Hadron Collider
• The LHC as a TeV Muon Beam Dump: Muonphilic Scalars at FASER
• Looking forward to inelastic DM with electromagnetic form factors at FASER and beam dump experiments
• The new monolithic ASIC of the preshower detector for di-photon measurements in the FASER experiment at CERN