Boosted Dark Matter Quarrying at Surface Neutrino Detectors

Abstract

We propose the idea of "Earth Shielding" to reject cosmic-ray backgrounds, in the search for boosted dark matter at surface neutrino detectors, resulting in the enhancement of the signal-to-background ratio. The identification of cosmic-originating rare signals, especially lacking features, at surface detectors is often considered hopeless due to a vast amount of cosmic-ray-induced background, hence underground experiments are better motivated to avoid such a challenge. We claim that surface detectors can attain remarkable sensitivities to even featureless signals, once restricting to events coming through the Earth from the opposite side of the detector location for the signals leaving appreciable tracks from which the source direction is inferred. By doing so, potential backgrounds in the signal region of interest can be substantially suppressed. To validate our claim, we study experimental reaches at several surface experiments such as SBN Program (MicroBooNE, ICARUS, and SBND) and ProtoDUNE for elastic boosted dark matter signatures stemming from the Galactic Center. We provide a systematic discussion on maximizing associated signal sensitivities.

23 pages, 8 figures

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• Prospects for Beyond the Standard Model Physics Searches at the Deep Underground Neutrino Experiment
• White Paper on New Opportunities at the Next-Generation Neutrino Experiments (Part 1: BSM Neutrino Physics and Dark Matter)
• Foraging for dark matter in large volume liquid scintillator neutrino detectors with multiscatter events
• Limits on Sub-GeV Dark Matter from the PROSPECT Reactor Antineutrino Experiment
• Monochromatic dark neutrinos and boosted dark matter in noble liquid direct detection
• Boosted Self-interacting Dark Matter in a Multi-component Dark Matter Model
• Search for Boosted Dark Matter at ProtoDUNE
• The First Direct Search for Inelastic Boosted Dark Matter with COSINE-100
• Luminous Signals of Inelastic Dark Matter in Large Detectors
• Probing Energetic Light Dark Matter with Multi-Particle Tracks Signatures at DUNE
• Searching for Boosted Dark Matter via Dark-Strahlung
• Constraints on cosmic-ray boosted dark matter with realistic cross section
• Multicomponent dark matter in noncommutative $B-L$ gauge theory
• Optimizing Energetic Light Dark Matter Searches in Dark Matter and Neutrino Experiments
• Distinctive signals of boosted dark matter from its semi-annihilation
• Manifesting hidden dynamics of a sub-component dark matter
• Earth Shielding and Daily Modulation from Electrophilic Boosted Dark Particles
• Dequantization of electric charge: Probing scenarios of cosmological multi-component dark matter
• A Module For Boosted Dark Matter Event Generation in GENIE
• Inelastic Dark Matter at the Fermilab Short Baseline Neutrino Program
• Identification of new isomers in ${}^{228}$Ac : Impact on dark matter searches