Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-06-05
Physics
High Energy Physics
High Energy Physics - Experiment
Contribution to the 27th ICRC (Hamburg, August 7-15, 2001), 4 pages, 3 figures
Scientific paper
A potential source of high energy neutrinos is the annihilation of Weakly Interacting Massive Particles (WIMPs) collecting in gravitational potential wells such as the centers of the Earth, the Sun, or the Galaxy. A search for such a WIMP annihilation signal using the Super-Kamiokande (Super-K) detector is presented. Super-K observes 1.1 upward through-going muons per day. These events are caused by high energy (typical E_nu ~ 100 GeV) nu_mu interactions in the rock under the detector, and are generally consistent with the expected flux from atmospheric neutrinos. No enhancement of the neutrino signal due to WIMP annihilation is seen, so upper limits on the possible flux of WIMPS are set. These limits are compared to those from other such indirect searches, and a model-independent method is used to compare the Super-K results with direct-detection WIMP experiments.
for the Super-Kamiokande Collaboration
Habig Alec
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