Signatures of Pseudo-Dirac Dark Matter at High-Intensity Neutrino Experiments

Abstract

We (re)consider the sensitivity of past (LSND) and future (JSNS^2) beam dump neutrino experiments to two models of MeV-scale pseudo-Dirac dark matter. Both LSND and JSNS^2 are close (24-30 m) to intense sources of light neutral mesons which may decay to dark matter via interactions involving a light mediator or dipole operators. The dark matter can then scatter or decay inside of the nearby detector. We show that the higher beam energy of JSNS^2 and resulting $\eta$ production can improve on the reach of LSND for light-mediator models with dark matter masses greater than $m_{\pi }/2$. Further, we find that both existing LSND and future JSNS^2 measurements can severely constrain the viable parameter space for a recently-proposed model of dipole dark matter which could explain the 3.5 keV excess reported in observations of stacked galaxy clusters and the Galactic Center.

arXiv comment11 pages, 6 figures

References in corpus (32)

• Evidence for Neutrino Oscillations from the Observation of Electron Anti-neutrinos in a Muon Anti-Neutrino Beam
• Evidence for nu_mu -> nu_e Neutrino Oscillations from LSND
• Exploring Portals to a Hidden Sector Through Fixed Targets
• FASER: ForwArd Search ExpeRiment at the LHC
• Exciting Dark Matter and the INTEGRAL/SPI 511 keV signal
• Search for Invisible Decays of a Dark Photon Produced in e+e- Collisions at BaBar
• Dark-Matter Electric and Magnetic Dipole Moments
• Measurement of electron-neutrino electron elastic scattering
• Strong Constraints on Sub-GeV Dark Matter from SLAC Beam Dump E137
• Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb
• New Detectors to Explore the Lifetime Frontier
• Probing Light Thermal Dark-Matter With a Higgs Portal Mediator
• Observing a light dark matter beam with neutrino experiments
• Final State Interactions Effects in Neutrino-Nucleus Interactions
• Constraining Light Dark Matter with Low-Energy e+e- Colliders
• Dark Sectors at the Fermilab SeaQuest Experiment
• Accelerating the Discovery of Light Dark Matter
• New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
• The Liquid Scintillator Neutrino Detector and LAMPF Neutrino Source
• Extension of the Liège Intranuclear-Cascade model to reactions induced by light nuclei
• Search for invisible decays of sub-GeV dark photons in missing-energy events at the CERN SPS
• Light dark matter in neutrino beams: production modelling and scattering signatures at MiniBooNE, T2K and SHiP
• Discovering Inelastic Thermal-Relic Dark Matter at Colliders
• Testing Light Dark Matter Coannihilation With Fixed-Target Experiments
• Dark Matter Search in a Proton Beam Dump with MiniBooNE
• Production of Gadolinium-loaded Liquid Scintillator for the Daya Bay Reactor Neutrino Experiment
• Testing GeV-Scale Dark Matter with Fixed-Target Missing Momentum Experiments
• DAEdALUS and Dark Matter Detection
• Missing energy signature from invisible decays of dark photons at the CERN SPS
• New Limits on Light Hidden Sectors from Fixed-Target Experiments
• Dark Matter Inelastic Up-Scattering with the Interstellar Plasma: An Exciting New Source of X-Ray Lines, including at 3.5 keV
• On-site Background Measurements for the J-PARC E56 Experiment: A Search for Sterile Neutrino at J-PARC MLF

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• Search for pair and single production of vectorlike quarks in final states with at least one $Z$ boson decaying into a pair of electrons or muons in $pp$ collision data collected with the ATLAS detector at $\sqrt{s}=13$ TeV
• Dark Matter Search in Nucleon, Pion, and Electron Channels from a Proton Beam Dump with MiniBooNE
• Inelastic Dark Matter at the LHC Lifetime Frontier: ATLAS, CMS, LHCb, CODEX-b, FASER, and MATHUSLA
• The High-Energy Frontier of the Intensity Frontier: Closing the Dark Photon, Inelastic Dark Matter, and Muon g-2 Windows
• White Paper on New Opportunities at the Next-Generation Neutrino Experiments (Part 1: BSM Neutrino Physics and Dark Matter)
• Revisiting the Dark Photon Explanation of the Muon Anomalous Magnetic Moment
• Explaining the XENON1T excess with Luminous Dark Matter
• FORMOSA: Looking Forward to Millicharged Dark Sectors
• Cosmic-ray upscattered inelastic dark matter
• Hunting On- and Off-Axis for Light Dark Matter with DUNE-PRISM
• First Dark Matter Search Results From Coherent CAPTAIN-Mills
• Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production
• Probing the Higgs Portal at the Fermilab Short-Baseline Neutrino Experiments
• Low-mass inelastic dark matter direct detection via the Migdal effect
• Dark sector-photon interactions in proton-beam experiments
• Severe Constraints on New Physics Explanations of the MiniBooNE Excess
• Heating Neutron Stars with Inelastic Dark Matter and Relativistic Targets
• Signatures of dark Higgs boson in light fermionic dark matter scenarios
• The impact of neutrino-nucleus interaction modeling on new physics searches
• The muon g-2 anomaly confronts new physics in $e^{\pm }$ and ${\mu }^{\pm }$ final states scattering
• New Thermal Relic Targets for Inelastic Vector-Portal Dark Matter
• Sensitivity to Kaon Decays to ALPs at Fixed Target Experiments
• A Snowmass Whitepaper: Dark Matter Production at Intensity-Frontier Experiments
• Low-Mass dark matter (in)direct detection with inelastic scattering
• Searching for axions with kaon decay at rest
• Inelastic Dark Matter at the Fermilab Short Baseline Neutrino Program
• Multi-track Displaced Vertices at B-Factories
• The Forward Physics Facility at the High-Luminosity LHC
• Milky Way Satellite Census. IV. Constraints on Decaying Dark Matter from Observations of Milky Way Satellite Galaxies