Directional Searches at DUNE for Sub-GeV Monoenergetic Neutrinos Arising from Dark Matter Annihilation in the Sun

Abstract

We consider the use of directionality in the search for monoenergetic sub-GeV neutrinos arising from the decay of stopped kaons, which can be produced by dark matter annihilation in the core of the Sun. When these neutrinos undergo charged-current interactions with a nucleus at a neutrino detector, they often eject a proton which is highly peaked in the forward direction. The direction of this track can be measured at DUNE, allowing one to distinguish signal from background by comparing on-source and off-source event rates. We find that directional information can enhance the signal to background ratio by up to a factor of 5.

14 pages, 3 figures; joint $e$ and $\mu$ analysis added and $\mu$ sensitivity curve corrected

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Cited by in corpus (9)

• Monochromatic dark neutrinos and boosted dark matter in noble liquid direct detection
• On the Role of Neutrinos Telescopes in the Search for Dark Matter Annihilations in the Sun
• Neutrino Topology Reconstruction at DUNE and Applications to Searches for Dark Matter Annihilation in the Sun
• Monoenergetic Neutrinos from WIMP Annihilation in Jupiter
• Multicomponent scalar dark matter at high-intensity proton beam experiments
• A Study of Dark Matter and QCD-Charged Mediators in the Quasi-Degenerate Regime
• Lunar neutrinos
• Directional Neutrino Searches for Galactic Center Dark Matter at Large Underground LArTPCs
• Searching for solar KDAR with DUNE