Sensitivity of the FACET experiment to Heavy Neutral Leptons and Dark Scalars

Abstract

We analyze the potential of the recently proposed experiment FACET (Forward-Aperture CMS ExTension) to search for new physics. As an example, we consider the models of Higgs-like scalars with cubic and quartic interactions and Heavy Neutral Leptons. We compare the sensitivity of FACET with that of other proposed "intensity frontier" experiments, including FASER2, SHiP, etc. and demonstrate that FACET could probe an interesting parameter space between the current constraints and the potential reach of the above mentioned proposals.

References in corpus (33)

• The $\nu$MSM, Dark Matter and Baryon Asymmetry of the Universe
• The $\nu$MSM, Dark Matter and Neutrino Masses
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• The p_T Spectrum in Heavy-Flavour Hadroproduction
• Theoretical predictions for charm and bottom production at the LHC
• The p_T Spectrum in Heavy-Flavour Photoproduction
• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• Probing the Standard Model with Higgs signal rates from the Tevatron, the LHC and a future ILC
• Feebly-Interacting Particles:FIPs 2020 Workshop Report
• Phenomenology of GeV-scale Heavy Neutral Leptons
• Decay and Detection of a Light Scalar Boson Mixing with the Higgs
• Light inflaton Hunter's Guide
• The Present and Future Status of Heavy Neutral Leptons
• Phenomenology of a very light scalar (100 MeV $<m_h<$ 10 GeV) mixing with the SM Higgs
• Multi-lepton Signatures of a Hidden Sector in Rare B Decays
• Search for Dark Matter in b -> s Transitions with Missing Energy
• Constraints on light mediators: confronting dark matter searches with B physics
• Heavy Neutrinos in displaced vertex searches at the LHC and HL-LHC
• Expression of Interest for the CODEX-b Detector
• FORESEE: FORward Experiment SEnsitivity Estimator for the LHC and future hadron colliders
• Probing dark sectors with long-lived particles at BELLE II
• Phenomenology of GeV-scale scalar portal
• Leveraging the ALICE/L3 cavern for long-lived exotics
• FACET: A new long-lived particle detector in the very forward region of the CMS experiment
• Detecting Hidden Particles with MATHUSLA
• Relaxion and light (pseudo)scalars at the HL-LHC and lepton colliders
• Hadronic decays of a light Higgs-like scalar
• Sensitivity of the intensity frontier experiments for neutrino and scalar portals: analytic estimates
• Higgs portal to dark matter and $B\to K^{(\ast )}$ decays
• Light scalar production from Higgs bosons and FASER 2
• Testing the seesaw mechanisms via displaced right-handed neutrinos from a light scalar at the HL-LHC
• Enhanced long-lived dark photon signals at lifetime frontier detectors
• Prospects for three-body Higgs boson decays into extra light scalars

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• Sensitivities to feebly interacting particles: public and unified calculations
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• Towards the optimal beam dump experiment to search for feebly interacting particles
• Long-lived Light Mediators in a Higgs Portal Model at the FCC-ee
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