Search for Dark Matter from the Galactic Halo with the IceCube Neutrino   Observatory
  Self-annihilating or decaying dark matter in the Galactic halo might produce high energy neutrinos detectable with neutrino telescopes. We have conducted a search for such a signal using 276 days of data from the IceCube 22-string configuration detector acquired during 2007 and 2008. The effect of halo model choice in the extracted limit is reduced by performing a search that considers the outer halo region and not the Galactic Center. We constrain any large scale neutrino anisotropy and are able to set a limit on the dark matter self-annihilation cross section of <\sigma_{A}v> \simeq 10^{-22} cm^3/s for WIMP masses above 1 TeV, assuming a monochromatic neutrino line spectrum. 
IceCube Collaboration: R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams,   J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X...
astro-ph.HE