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ALP Searches at the LHC: FASER as a Light Shining through Walls Experiment

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arxiv 2204.03599 v2 pith:UWCN3GSY submitted 2022-04-07 hep-ph hep-ex

classification hep-phhep-ex
keywords alpsfaserexperimentfieldsforwardhighmagneticable
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose the use of FASER as a light-shining-through-walls experiment to search for axions and axion-like particles (ALPs). LHC collisions generate a high intensity and high energy photon flux in the forward direction which can oscillate into ALPs in the magnetic fields that are used to confine the beam. These ALPs then pass through about 100~m of rock before reaching the magnetic fields of FASER, where they can convert back into photons and be detected by an electromagnetic calorimeter. In the next years, FASER and its successor FASER2 at the Forward Physics Facility will be able to explore regions of the ALPs parameter space inaccessible by other laboratory-based experiments.

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Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The LHC as a TeV Muon Beam Dump: Muonphilic Scalars at FASER

    hep-ph 2025-01 conditional novelty 6.0 of 10

    FASER and FASER2 could probe unconstrained muonphilic scalar masses below the dimuon threshold, including the (g-2)_mu favored region, using diphoton and muon-plus-diphoton signals.

  2. Neutrino Experiments at the Large Hadron Collider

    hep-ex 2025-01 accept novelty 2.0 of 10

    A review of LHC collider neutrino physics, covering FASER and SND@LHC results, present measurements, and future plans including the Forward Physics Facility.

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