2012/09/30 by Fei-Fan Lee, Guey-Lin Lin, Yue-Lin Sming Tsai · 1 citation
Physics and Astronomy · #Annihilation #Astrophysics #Bar (unit) #CMB cold spot #Cosmic microwave background #Cosmology #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Dark matter halo #Event (particle physics) #Fermi Gamma-ray Space Telescope #Flux (metallurgy) #Galactic halo #Galaxy #Halo #Light dark matter #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Scalar field dark matter #Sensitivity (control systems) #astro-ph.CO #hep-ph
paper · pdf · doi:10.1103/physrevd.87.025003
published as Phys. Rev. D 87, 025003, 2013 · matches the published version
openalex publication_date 2013/01/02 · arxiv created 2013/03/04 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 \ensuremathχ\ensuremathχ\ensuremath→bb, \ensuremathτ+\ensuremathτ^\ensuremath-, \ensuremathμ+\ensuremathμ^\ensuremath-, and \ensuremathν\ensuremathν, and decay modes \ensuremathχ\ensuremath→bb, \ensuremathτ+\ensuremathτ^\ensuremath-, \ensuremathμ+\ensuremathμ^\ensuremath-, and \ensuremathν\ensuremathν. We compare our results with corresponding constraints derived from observations of WMAP, ACT, and Fermi-LAT.