4.4 Article

Boosted dark matter at the deep underground neutrino experiment

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 4, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP04(2017)158

Keywords

Beyond Standard Model; Cosmology of Theories beyond the SM; Solar and Atmospheric Neutrinos

Funding

  1. Jazan University in the Kingdom of Saudi Arabia
  2. US-DOE [DE-FG02-12ER41809]
  3. National Research Foundation of Korea [NRF-2016R1C1B2015225]
  4. National Research Foundation of South Africa [88614]
  5. dissertation fellowship at the University of Kansas
  6. National Research Foundation of Korea [2016R1C1B2015225] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We investigate the detection prospects of a non-standard dark sector in the context of boosted dark matter. We consider a scenario where two stable particles have a large mass difference and the heavier particle accounts for most of dark matter in our current universe. The heavier candidate is assumed to have no interaction with the standard model particles at tree-level, hence evading existing constraints. Although subdominant, the lighter dark matter particles are efficiently produced via pair-annihilation of the heavier ones in the center of the Galaxy or the Sun. The large Lorentz boost enables detection of the non-minimal dark sector in large volume terrestrial experiments via exchange of a light dark photon with electrons or nuclei. Various experiments designed for neutrino physics and proton decay are examined in detail, including Super-K and Hyper-K. In this study, we focus on the sensitivity of the far detector at the Deep Underground Neutrino Experiment for boosted dark matter produced in the center of the Sun, and compare our findings with recent results for boosted dark matter produced in the galactic center.

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