Constraining dark matter-nucleon scattering cross section by the background electron anti-neutrino flux data

Man Ho CHAN, Chak Man LEE

Research output: Contribution to journalArticlespeer-review

Abstract

Celestial objects such as stars and planets might be able to capture a large amount of dark matter particles through dark matter-nucleon scattering. Many previous studies have considered different celestial objects such as the Sun and the Earth as natural dark matter detectors and obtained some stringent bounds of the dark matter-nucleon scattering cross section. In this study, we use the ∼10 MeV electron neutrino flux limits obtained by the Super-Kamiokande experiment and consider the Earth as a large natural dark matter detector to constrain the dark matter-nucleon scattering cross section. We show that this method can generally get more stringent limits. For certain ranges of dark matter mass annihilating via the channel, the limits of cross section for the isospin-independent scattering and proton-only scattering could be more stringent than that obtained in the PICO direct-detection experiment. Copyright © 2022 The Author(s). Published by Elsevier B.V.
Original languageEnglish
JournalPhysics Letters B
Early online date10 Jan 2022
DOIs
Publication statusE-pub ahead of print - 10 Jan 2022

Citation

Chan, M. H., & Lee, C. M. (2022). Constraining dark matter-nucleon scattering cross section by the background electron anti-neutrino flux data. Physics Letters B. Advance online publication. doi: 10.1016/j.physletb.2022.136887

Keywords

  • Dark matter
  • Scattering

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