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Limits on a Muon Flux from Neutralino Annihilations in the Sun with the IceCube 22-String Detector

R. Abbasi et al. (IceCube Collaboration)
Phys. Rev. Lett. 102, 201302 – Published 21 May 2009
Physics logo See Synopsis: Looking under the Antarctic ice for evidence of dark matter

Abstract

A search for muon neutrinos from neutralino annihilations in the Sun has been performed with the IceCube 22-string neutrino detector using data collected in 104.3 days of live time in 2007. No excess over the expected atmospheric background has been observed. Upper limits have been obtained on the annihilation rate of captured neutralinos in the Sun and converted to limits on the weakly interacting massive particle (WIMP) proton cross sections for WIMP masses in the range 250–5000 GeV. These results are the most stringent limits to date on neutralino annihilation in the Sun.

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  • Received 14 February 2009

DOI:https://doi.org/10.1103/PhysRevLett.102.201302

©2009 American Physical Society

Synopsis

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Looking under the Antarctic ice for evidence of dark matter

Published 26 May 2009

Detectors buried beneath the Antarctic ice place stringent limits on the presence of dark matter particles, called neutralinos, in the sun.

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Vol. 102, Iss. 20 — 22 May 2009

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