Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-12-02
Phys.Rev.D81:083506,2010
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
7 pages, 3 figures. v2: references added and minor revisions. v3: as published in PRD.
Scientific paper
10.1103/PhysRevD.81.083506
In this paper, we compare the relative sensitivities of gamma-ray and neutrino observations to the dark matter annihilation cross section in leptophilic models such as have been designed to explain PAMELA data. We investigate whether the high energy neutrino telescope IceCube will be competitive with current and upcoming searches by gamma-ray telescopes, such as the Atmospheric Cerenkov Telescopes (ACTs) (HESS, VERITAS and MAGIC), or the Fermi Gamma Ray Space Telescope, in detecting or constraining dark matter particles annihilating in dwarf spheroidal galaxies. We find that after ten years of observation of the most promising nearby dwarfs, IceCube will have sensitivity comparable to the current sensitivity of gamma-ray telescopes only for very heavy (m_X > 7 TeV) or relatively light (m_X < 200 GeV) dark matter particles which annihilate primarily to mu+mu-. If dark matter particles annihilate primarily to tau+tau-, IceCube will have superior sensitivity only for dark matter particle masses below the 200 GeV threshold of current ACTs. If dark matter annihilations proceed directly to neutrino-antineutrino pairs a substantial fraction of the time, IceCube will be competitive with gamma-ray telescopes for a much wider range of dark matter masses.
Buckley Matthew
Freese Katherine
Hooper Dan
Sandick Pearl
Spolyar Douglas
No associations
LandOfFree
The Sensitivity of the IceCube Neutrino Detector to Dark Matter Annihilating in Dwarf Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Sensitivity of the IceCube Neutrino Detector to Dark Matter Annihilating in Dwarf Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Sensitivity of the IceCube Neutrino Detector to Dark Matter Annihilating in Dwarf Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-516249