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Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
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2013 (Engelska)Ingår i: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 342Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

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 4 sigma 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.

Ort, förlag, år, upplaga, sidor
2013. Vol. 342
Nyckelord [en]
ice Science & Technology - Other Topics
Forskningsämne
SWEDARP, IceCube
Identifikatorer
URN: urn:nbn:se:polar:diva-1958DOI: 10.1126/science.1242856OAI: oai:DiVA.org:polar-1958DiVA, id: diva2:814152
Anmärkning

ISI Document Delivery No.: 255EZ Times Cited: 62 Cited Reference Count: 28 Aartsen, M. G. Abbasi, R. Abdou, Y. Ackermann, M. Adams, J. Aguitar, J. A. Alders, M. Altmann, D. Auffetibery, J. Ba, X. Baker, M. Barwick, S. W. Baum, V. Bay, R. Beatty, J. J. Bechet, S. Tjus, J. Becker Becker, K-H. Benabderrahmane, M. L. BenZvi, S. Berghaus, P. Berley, D. Bernardini, E. Bernhard, A. Bertrand, D. Besson, D. Z. Binder, G. Bindig, D. Bissok, M. Blaufuss, E. Blumenthal, J. Boersma, D. J. Boliaichuk, S. Bohm, C. Bose, D. Boeser, S. Botner, O. Brayeur, L. Bretz, H-P. Brown, A. M. Bruijn, R. Brunner, J. Carson, M. Casey, J. Casier, M. Chirkin, D. Christov, A. Christy, B. Clark, K. Cleverrnann, F. Coenders, S. Cohen, S. Cowen, D. F. Silva, A. H. Cruz Danninger, M. Daughhetee, J. Davis, J. C. Day, M. De Clercq, C. Ridder, S. De Desiati, P. de Vries, K. D. de With, M. DeYoung, T. Diaz-Velez, J. C. Dunkman, M. Eagan, R. Eberhardt, B. Eichmann, B. Eisch, J. Ellsworth, R. W. Euler, S. Evenson, P. A. Fadiran, O. Fazely, A. R. Fedynitch, A. Feinzeig, J. Feusels, T. Filimonov, K. Finley, C. Fischer-Wasels, T. Flis, S. Franckowiak, A. Frantzen, K. Fuchs, T. Gaisser, T. K. Gallagher, J. Gerhardt, L. Gladstone, L. Gluesenkamp, T. Goldschmidt, A. Golup, G. Gonzalez, J. G. Goodman, J. A. Gora, D. Grandmont, D. T. Grant, D. Gross, A. Ha, C. Ismail, A. Haj Hallen, P. Hallgren, A. Halzen, F. Hanson, K. Heerernan, D. Heinen, D. Helbing, K. Hellauer, R. Hickford, S. Hill, G. C. Hoffman, K. D. Hoffmann, R. Homeier, A. Hoshina, K. Huelsnitz, W. Hulth, P. O. Hultqvist, K. Hussain, S. Ishihara, A. Jacobi, E. Jacobsen, J. Jagielski, K. Japaridze, G. S. Jero, K. Jlelati, O. Kaminsky, B. Kappes, A. Karg, T. Karle, A. Kelley, J. L. Kiryluk, J. Klaes, J. Klein, S. R. Koehne, J-H. Kohnen, C. Kolanoski, H. Koepke, L. Kopper, C. Kopper, S. Koskinen, D. J. Kowalski, M. Krasberg, M. Krings, K. Kroll, G. Kunnen, J. Kurahashi, N. Kowabara, T. Labare, M. Landsman, H. Larson, M. J. Lesiak-Bzdak, M. Leuermann, M. Leute, J. Luenemann, J. Madsen, J. Maggi, G. Maruyama, R. Mase, K. Matis, H. S. McNally, F. Meagher, K. Merck, M. Meures, T. Miarecki, S. Middell, E. Milke, N. Miller, J. Mohrmann, L. Montaruli, T. Morse, R. Nahnhauer, R. Naumann, U. Niederhausen, H. Nowicki, S. C. Nygren, D. R. Obertacke, A. Odrowski, S. Olivas, A. O'Murchadha, A. Paul, L. Pepper, J. A. de los Heros, C. Perez Pfendner, C. Pieloth, D. Pinat, E. Posselt, J. Price, P. B. Przybylski, G. T. Raedel, L. Rameez, M. Rawlins, K. Redl, P. Reimann, R. Resconi, E. Rhode, W. Ribordy, M. Richman, M. Riedel, B. Rodrigues, J. P. Rott, C. Ruhe, T. Ruzybayev, B. Ryckbosch, D. Saba, S. Salameh, T. Sander, H-G. Santander, M. Sarkar, S. Schatto, K. Scheriau, F. Schmidt, T. Schmitz, M. Schoenen, S. Schoeneberg, S. Schoenwald, A. Schokraft, A. Schulte, L. Schulz, O. Seckel, D. Sestayo, Y. Seunarine, S. Shanidze, R. Sheremata, C. Smith, M. W. E. Soldin, D. Spiczak, G. A. Spiering, C. Stamatikos, M. Stanev, T. Stasik, A. Stezelberger, T. Stokstad, R. G. Stoessl, A. Strahler, E. A. Strom, R. Sullivan, G. W. Taavola, H. Taboada, I. Tamburro, A. Tepe, A. Ter-Antonyan, S. Tesic, G. Tilav, S. Toale, P. A. Toscana, S. Unger, E. Usner, M. van Eijndhoven, N. Van Overloop, A. van Santen, J. Vehring, M. Voge, M. Vraeghe, M. Walck, C. Waldenmaier, T. Wallraff, M. Weaver, Ch Wellons, M. Wendt, C. Westerhoff, S. Whitehorn, N. Wiebe, K. Wiebusch, C. H. Williams, D. R. Wissing, H. Wolf, M. Wood, T. R. Woschnagg, K. Xu, D. L. Xu, X. W. Yanez, J. P. Yodh, G. Yoshida, S. Zarzhitsky, P. Ziemann, J. Zierke, S. Zoll, M. Tjus, Julia/G-8145-2012; Beatty, James/D-9310-2011; Wiebusch, Christopher/G-6490-2012; Koskinen, David/G-3236-2014 Koskinen, David/0000-0002-0514-5917 U.S. National Science Foundation-Office of Polar Programs; U.S. National Science Foundation-Physics Division; University of Wisconsin Alumni Research Foundation; Grid Laboratory of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin-Madison; Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy; National Energy Research Scientific Computing Center; Louisiana Optical Network Initiative (LONI); Natural Sciences and Engineering Research Council of Canada; WestGrid; Compute/Calcul Canada; Swedish Research Council; Swedish Polar Research Secretariat; Swedish National Infrastructure for Computing (SNIC); Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF); Deutsche Forschungsgemeinschaft (DFG); Helmholtz Alliance for Astroparticle Physics (HAP); Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO),; FWO Odysseus programme; Flanders Institute to encourage scientific and technological research in industry (IWT); Belgian Federal Science Policy Office (Belspo); University of Oxford, UK; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF) We acknowledge support from the following agencies: U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, University of Wisconsin Alumni Research Foundation, the Grid Laboratory of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin-Madison, and the Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy, National Energy Research Scientific Computing Center, and the Louisiana Optical Network Initiative (LONI) grid computing resources; Natural Sciences and Engineering Research Council of Canada, WestGrid, and Compute/Calcul Canada; Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), and Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO), FWO Odysseus programme, Flanders Institute to encourage scientific and technological research in industry (IWT), and Belgian Federal Science Policy Office (Belspo); University of Oxford, UK; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); the Swiss National Science Foundation (SNSF), Switzerland; and National Research Foundation of Korea (NRF). Additional data and resources are available in the supplementary materials. These include displays of the neutrino candidate events and list precise arrival times, as well as machine-readable tabular neutrino effective areas (Fig. 7). IceCube data are archived at http://www.icecube.wisc.edu/science/data. 62 Amer assoc advancement science Washington Multidisciplinary Sciences

Tillgänglig från: 2015-05-26 Skapad: 2015-05-13 Senast uppdaterad: 2017-12-04

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