4.8 Article

Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data

Journal

PHYSICAL REVIEW LETTERS
Volume 113, Issue 10, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.101101

Keywords

-

Funding

  1. U.S. National Science Foundation-Office of Polar Programs
  2. U.S. National Science Foundation-Physics Division
  3. University of Wisconsin Alumni Research Foundation
  4. Grid Laboratory of Wisconsin (GLOW) grid infrastructure at the University ofWisconsin-Madison
  5. Open Science Grid (OSG) grid infrastructure
  6. U.S. Department of Energy and National Energy Research Scientific Computing Center
  7. Louisiana Optical Network Initiative (LONI) grid computing resources
  8. Natural Sciences and Engineering Research Council of Canada
  9. WestGrid and Compute/Calcul Canada
  10. Swedish Research Council
  11. Swedish Polar Research Secretariat
  12. Swedish National Infrastructure for Computing (SNIC)
  13. Knut and Alice Wallenberg Foundation, Sweden
  14. German Ministry for Education and Research (BMBF)
  15. Deutsche Forschungsgemeinschaft (DFG)
  16. Helmholtz Alliance for Astroparticle Physics (HAP)
  17. Research Department of Plasmas with Complex Interactions (Bochum), Germany
  18. Fund for Scientific Research (FNRS-FWO)
  19. FWO Odysseus programme
  20. Flanders Institute to Encourage Scientific and Technological Research in Industry (IWT)
  21. Belgian Federal Science Policy Office (Belspo)
  22. University of Oxford, United Kingdom
  23. Marsden Fund, New Zealand
  24. Australian Research Council
  25. Japan Society for Promotion of Science (JSPS)
  26. Swiss National Science Foundation (SNSF), Switzerland
  27. National Research Foundation of Korea (NRF)
  28. Danish National Research Foundation, Denmark (DNRF)
  29. STFC [ST/L000474/1, ST/J000507/1] Funding Source: UKRI
  30. Science and Technology Facilities Council [ST/L000474/1, ST/J000507/1] Funding Source: researchfish
  31. Direct For Mathematical & Physical Scien [1210052, 1307472] Funding Source: National Science Foundation
  32. Direct For Mathematical & Physical Scien
  33. Division Of Physics [1205403, 1306958] Funding Source: National Science Foundation
  34. Direct For Mathematical & Physical Scien
  35. Division Of Physics [1403586, 1205796] Funding Source: National Science Foundation
  36. Division Of Physics [1210052, 1307472] Funding Source: National Science Foundation
  37. Grants-in-Aid for Scientific Research [25105001, 25105005] Funding Source: KAKEN

Ask authors/readers for more resources

A search for high-energy neutrinos interacting within the IceCube detector between 2010 and 2012 provided the first evidence for a high-energy neutrino flux of extraterrestrial origin. Results from an analysis using the same methods with a third year (2012-2013) of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV-PeV range at the level of 10(-8) GeV cm(-2) s(-1) sr(-1) per flavor and reject a purely atmospheric explanation for the combined three-year data at 5.7 sigma. The data are consistent with expectations for equal fluxes of all three neutrino flavors and with isotropic arrival directions, suggesting either numerous or spatially extended sources. The three-year data set, with a live time of 988 days, contains a total of 37 neutrino candidate events with deposited energies ranging from 30 to 2000 TeV. The 2000-TeV event is the highest-energy neutrino interaction ever observed.

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