Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/88795
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Type: Journal article
Title: Evidence for high-energy extraterrestrial neutrinos at the IceCube detector
Author: IceCube Collaboration
Citation: Science, 2013; 342(6161):1242856-1-1242856-7
Publisher: American Association for the Advancement of Science
Issue Date: 2013
ISSN: 0036-8075
1095-9203
Statement of
Responsibility: 
IceCube Collaboration
Abstract: We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follows up on the previous detection of two PeV neutrino events, with improved sensitivity and extended energy coverage down to about 30 TeV. Twenty-six additional events were observed, substantially more than expected from atmospheric backgrounds. Combined, both searches reject a purely atmospheric origin for the 28 events at the 4σ level. These 28 events, which include the highest energy neutrinos ever observed, have flavors, directions, and energies inconsistent with those expected from the atmospheric muon and neutrino backgrounds. These properties are, however, consistent with generic predictions for an additional component of extraterrestrial origin.
Keywords: IceCube Collaboration
Description: IceCube Collaboration Contributors: M. Aartsen and G. Hill for the University of Adelaide.
DOI: 10.1126/science.1242856
Grant ID: ARC
Published version: http://dx.doi.org/10.1126/science.1242856
Appears in Collections:Aurora harvest 7
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