We present the results of the first IceCube search for dark matter annihilation in the center of the Earth .
Weakly Interacting Massive Particles ( WIMPs ) , candidates for dark matter , can scatter off nuclei inside the Earth and fall below its escape velocity .
Over time the captured WIMPs will be accumulated and may eventually self-annihilate .
Among the annihilation products only neutrinos can escape from the center of the Earth .
Large-scale neutrino telescopes , such as the cubic kilometer IceCube Neutrino Observatory located at the South Pole , can be used to search for such neutrino fluxes .

Data from 327 days of detector livetime during 2011/ 2012 were analyzed .
No excess beyond the expected background from atmospheric neutrinos was detected .
The derived upper limits on the annihilation rate of WIMPs in the Earth ( \Gamma _ { A } = 1.12 \cdot 10 ^ { 14 } ~ { } s ^ { -1 } for WIMP masses of 50 GeV annihilating into tau leptons ) and the resulting muon flux are an order of magnitude stronger than the limits of the last analysis performed with data from IceCube ’ s predecessor AMANDA .
The limits can be translated in terms of a spin-independent WIMP-nucleon cross section .
For a WIMP mass of 50 GeV this analysis results in the most restrictive limits achieved with IceCube data .