Blast from the past: Constraints on the dark sector from the BEBC WA66 beam dump experiment

Abstract

We derive limits on millicharged dark states, as well as particles with electric or magnetic dipole moments, from the number of observed forward electron scattering events at the Big European Bubble Chamber in the 1982 CERN-WA-066 beam dump experiment. The dark states are produced by the 400 GeV proton beam primarily through the decays of mesons produced in the beam dump, and the lack of excess events places bounds extending up to GeV masses. These improve on bounds from all other experiments, in particular CHARM II.

arXiv comment14 pages, 5 figures; accepted for publication in SciPost Physics

References in corpus (30)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• A Brief Introduction to PYTHIA 8.1
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• Supernova 1987A Constraints on Sub-GeV Dark Sectors, Millicharged Particles, the QCD Axion, and an Axion-like Particle
• Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment
• Updated Bounds on Milli-Charged Particles
• Exploring Portals to a Hidden Sector Through Fixed Targets
• Dark-Matter Electric and Magnetic Dipole Moments
• Measurement of electron-neutrino electron elastic scattering
• Dark Radiation constraints on minicharged particles in models with a hidden photon
• Rho-omega mixing, vector meson dominance and the pion form-factor
• Direct and indirect limits on the electro-magnetic form factors of WIMPs
• Light dark matter in neutrino beams: production modelling and scattering signatures at MiniBooNE, T2K and SHiP
• The Search for Feebly-Interacting Particles
• Millicharged particles in neutrino experiments
• Improved Limits on Millicharged Particles Using the ArgoNeuT Experiment at Fermilab
• Collider Constraints on Dipole-Interacting Dark Matter
• Loopy Constraints on Leptophilic Dark Matter and Internal Bremsstrahlung
• Search for fractionally charged particles in pp collisions at sqrt(s) = 7 TeV
• Search for millicharged particles in proton-proton collisions at $\sqrt{s}=13$ TeV
• Light dark states with electromagnetic form factors
• Dirac dark matter with a charged mediator: a comprehensive one-loop analysis of the direct detection phenomenology
• Faint Light from Dark Matter: Classifying and Constraining Dark Matter-Photon Effective Operators
• Millicharged Particles in Liquid Argon Neutrino Experiments
• Single and Multi-Photon Events with Missing Energy in e+e- Collisions at \sqrt{s} = 189 GeV
• Dark sector-photon interactions in proton-beam experiments
• Event generation for beam dump experiments
• The hunt for sub-GeV dark matter at neutrino facilities: a survey of past and present experiments

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• The Search for Feebly-Interacting Particles
• Blast from the past II: Constraints on heavy neutral leptons from the BEBC WA66 beam dump experiment
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• Limits on the abundance of millicharged particles bound to matter
• FLArE up dark sectors with EM form factors at the LHC Forward Physics Facility
• Search for sub-millicharged particles at J-PARC
• Searching for Minicharged Particles at the Energy Frontier with the MoEDAL-MAPP Experiment at the LHC
• Science and Project Planning for the Forward Physics Facility in Preparation for the 2024-2026 European Particle Physics Strategy Update
• Searches for long-lived dark photons at proton accelerator experiments
• Passage of millicharged particles in the electron beam-dump: refining constraints from SLACmQ and estimating sensitivity of NA64e
• Double-Hit Signature of Millicharged Particles in 3D segmented neutrino detector
• Terrestrial Probes of Electromagnetically Interacting Dark Radiation
• Recasting Bounds on Long-lived Heavy Neutral Leptons in Terms of a Light Supersymmetric R-parity Violating Neutralino
• On direct observation of millicharged particles at $c$-$\tau$ factories and other $e^{+}{e}^{-}$-colliders
• Multipole vector dark matter below the GeV-scale
• XQC and CSR constraints on strongly interacting dark matter with spin and velocity dependent cross sections
• Freezing In with Lepton Flavored Fermions
• Millicharge Dark Matter Detection with Mach-Zehnder Interferometer
• Millicharged Particles from the Heavens: Single- and Multiple-Scattering Signatures
• Plasma Constraints on the Millicharged Dark Matter
• Underground Production of Electromagnetic Dark States by MeV-scale Electron Beams and Detection with CCDs
• Dimming Starlight with Dark Compact Objects
• Letter of Intent: The Forward Physics Facility
• Long-lived Light Mediators in a Higgs Portal Model at the FCC-ee
• The Forward Physics Facility at the High-Luminosity LHC
• Minicharged Particle Sensitivity of the MAPP Outrigger Detector
• Can millicharge be probed at future Super Tau Charm Facility via mono-${\pi }^0$ searches?
• Freeze-in Production of Non-Abelian Millicharged Vector Dark Matter