Dark matter induced neutrino signature in icecube deepcore detector

Fei Fan Lee, Guey-Lin Lin, Yue Lin Sming Tsai

Research output: Contribution to journalArticlepeer-review

Abstract

The installation of DeepCore array significantly lowers IceCube's energy threshold to about 10 GeV and enhances the sensitivity of detecting neutrinos from annihilations and decays of light dark matter. To match this experimental development, we discuss decays of the event rate in DeepCore array due to neutrino flux produced by annihilations and galactic dark matter. This event rate is calculated with a 10 GeV threshold energy, which is smaller than the threshold energy taken in previous works. Taking into account the background event rate due to the atmospheric neutrino flux, we evaluate the sensitivity of DeepCore array for probing dark matter annihilation cross section and decay time. We compare our results with corresponding constraints derived from observations of WMAP, ACT and Fermi-LAT.

Original languageEnglish
Pages (from-to)90-94
Number of pages5
JournalNuclear Physics B - Proceedings Supplements
Volume246-247
DOIs
StatePublished - 1 Jan 2014

Keywords

  • Dark Matter
  • IceCube DeepCore
  • Neutrino

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