Decaying light particles in the SHiP experiment: Signal rate estimates for hidden photons

Abstract

For the extension of the Standard Model with light hidden photons we present preliminary estimates of the signal rate expected at the recently proposed fixed target SHiP experiment exploiting the CERN SPS beam of 400 GeV protons.

6 pages, 5 figures; journal version with the typo in the equation below eq. (2) corrected; results are not affected

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• Inelastic Dark Matter at the LHC Lifetime Frontier: ATLAS, CMS, LHCb, CODEX-b, FASER, and MATHUSLA
• Neutrinophilic Non-Standard Interactions
• The High-Energy Frontier of the Intensity Frontier: Closing the Dark Photon, Inelastic Dark Matter, and Muon g-2 Windows
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• Searching for Physics Beyond the Standard Model in an Off-Axis DUNE Near Detector
• Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles
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• New production channels for light dark matter in hadronic showers
• Searches for Atmospheric Long-Lived Particles
• Leptogenesis and neutral gauge bosons
• Implications of the dark axion portal for SHiP and FASER and the advantages of monophoton signals
• Implications of Two-component Dark Matter Induced by Forbidden Channels and Thermal Freeze-out
• Leptogenesis from oscillations and dark matter
• Searches for long-lived dark photons at proton accelerator experiments
• Is it possible to discover a dark matter particle with an accelerator?
• Dark photon production via elastic proton bremsstrahlung with non-zero momentum transfer
• Pauli form factor contributions to the inelastic proton bremsstrahlung and dark photon production
• Towards the optimal beam dump experiment to search for feebly interacting particles
• DUNE prospect for leptophobic dark matter
• Freeze-in production of sterile neutrino dark matter in a gauged U$(1{)}^{\prime }$ model with inverse seesaw
• DUNE potential for sub-GeV dark matter in proton beam dump mode
• The Forward Physics Facility at the High-Luminosity LHC