Indirect search for dark matter from the Galactic Center and halo with the Super-Kamiokande detector

The Super-Kamiokande Collaboration

研究成果: Article査読

12 被引用数 (Scopus)

抄録

We present a search for an excess of neutrino interactions due to dark matter in the form of weakly interacting massive particles (WIMPs) annihilating in the Galactic center or halo based on the data set of Super-Kamiokande-I, -II, -III and -IV taken from 1996 to 2016. We model the neutrino flux, energy, and flavor distributions assuming WIMP self-annihilation is dominant to νν¯, μ+μ-, bb¯, or W+W-. The excess is in comparison to atmospheric neutrino interactions which are modeled in detail and fit to data. Limits on the self-annihilation cross section σ are derived for WIMP masses in the range 1 GeV to 10 TeV, reaching as low as 9.6×10-23 cm3 s-1 for 5 GeV WIMPs in bb¯ mode and 1.2×10-24 cm3 s-1 for 1 GeV WIMPs in νν¯ mode. The obtained sensitivity of the Super-Kamiokande detector to WIMP masses below several tens of GeV is the best among similar indirect searches to date.

本文言語English
論文番号072002
ジャーナルPhysical Review D
102
7
DOI
出版ステータスPublished - 2020 10月
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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