Sensitivities of the IceCube DeepCore detector to signatures of low-mass dark matter in the Galactic halo

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We discuss the event rate in the DeepCore array due to neutrino flux produced by annihilations and decays of 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 the DeepCore array for probing the dark matter annihilation cross section and decay time. The sensitivity studies include the annihilation modes χχ→bb̄, τ+τ-, μ+μ-, and νν̄, and decay modes χ→bb̄, τ+τ-, μ+μ -, and νν̄. We compare our results with corresponding constraints derived from observations of WMAP, ACT, and Fermi-LAT.

Original languageEnglish
Article number025003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume87
Issue number2
DOIs
StatePublished - 2 Jan 2013

Fingerprint Dive into the research topics of 'Sensitivities of the IceCube DeepCore detector to signatures of low-mass dark matter in the Galactic halo'. Together they form a unique fingerprint.

Cite this