The FASER Detector

Abstract

FASER, the ForwArd Search ExpeRiment, is an experiment dedicated to searching for light, extremely weakly-interacting particles at CERN's Large Hadron Collider (LHC). Such particles may be produced in the very forward direction of the LHC's high-energy collisions and then decay to visible particles inside the FASER detector, which is placed 480 m downstream of the ATLAS interaction point, aligned with the beam collisions axis. FASER also includes a sub-detector, FASER$\nu$, designed to detect neutrinos produced in the LHC collisions and to study their properties. In this paper, each component of the FASER detector is described in detail, as well as the installation of the experiment system and its commissioning using cosmic-rays collected in September 2021 and during the LHC pilot beam test carried out in October 2021. FASER will start taking LHC collision data in 2022, and will run throughout LHC Run 3.

arXiv comment92 pages, 72 Figures

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Cited by in corpus (17)

• First Measurement of the ${\nu }_e$ and ${\nu }_{\mu }$ Interaction Cross Sections at the LHC with FASER's Emulsion Detector
• First Measurement of the Muon Neutrino Interaction Cross Section and Flux as a Function of Energy at the LHC with FASER
• Science and Project Planning for the Forward Physics Facility in Preparation for the 2024-2026 European Particle Physics Strategy Update
• Discovering neutrino tridents at the Large Hadron Collider
• Neutrino Electromagnetic Properties and the Weak Mixing Angle at the LHC Forward Physics Facility
• Leptophilic Axion-like Particles at Forward Detectors
• Neutrino Experiments at the Large Hadron Collider
• Deep-Inelastic Scattering at TeV Energies with LHC Muons
• The LHC as a TeV Muon Beam Dump: Muonphilic Scalars at FASER
• Road map for the tuning of hadronic interaction models with accelerator-based and astroparticle data
• Right handed neutrino production from $Z^{\prime }$ interactions in forward search experiments
• Constraining neutrinophilic mediators at FASER$\nu$, FLArE and FASER$\nu$2
• PREFACE: A search for long-lived particles at the Large Hadron Collider
• Neutrino-Portal Dark Matter Detection Prospects at a Future Muon Collider
• Letter of Intent: The Forward Physics Facility
• Neutrino Physics and Astrophysics at Colliders
• Study of sub-GeV Dipolar Dark States at SND@LHC within Invisible Bounds on Meson Decays