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Atmospheric and astrophysical neutrinos above 1 TeV interacting in IceCube

  • M. G. Aartsen
  • , M. Ackermann
  • , J. Adams
  • , J. A. Aguilar
  • , M. Ahlers
  • , M. Ahrens
  • , D. Altmann
  • , T. Anderson
  • , C. Arguelles
  • , T. C. Arlen
  • , J. Auffenberg
  • , X. Bai
  • , S. W. Barwick
  • , V. Baum
  • , R. Bay
  • , J. J. Beatty
  • , J. Becker Tjus
  • , K. H. Becker
  • , S. Benzvi
  • , P. Berghaus
  • D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder, D. Bindig, M. Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, F. Bos, D. Bose, S. Böser, O. Botner, L. Brayeur, H. P. Bretz, A. M. Brown, N. Buzinsky, J. Casey, M. Casier, E. Cheung, D. Chirkin, A. Christov, B. Christy, K. Clark, L. Classen, F. Clevermann, S. Coenders, D. F. Cowen, A. H. Cruz Silva, M. Danninger, J. Daughhetee, J. C. Davis, M. Day, J. P.A.M. De André, C. De Clercq, S. De Ridder, P. Desiati, K. D. De Vries, M. De With, T. Deyoung, J. C. Díaz-Vélez, M. Dunkman, R. Eagan, B. Eberhardt, B. Eichmann, J. Eisch, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, J. Feintzeig, J. Felde, T. Feusels, K. Filimonov, C. Finley, T. Fischer-Wasels, S. Flis, A. Franckowiak, K. Frantzen, T. Fuchs, T. K. Gaisser, R. Gaior, J. Gallagher, L. Gerhardt, D. Gier, L. Gladstone, T. Glüsenkamp, A. Goldschmidt, G. Golup, J. G. Gonzalez, J. A. Goodman, D. Góra, D. Grant, P. Gretskov, J. C. Groh, A. Groß, C. Ha, C. Haack, A. Haj Ismail, P. Hallen, A. Hallgren, F. Halzen, K. Hanson, D. Hebecker, D. Heereman, D. Heinen, K. Helbing, R. Hellauer, D. Hellwig, S. Hickford, G. C. Hill, K. D. Hoffman, R. Hoffmann, A. Homeier, K. Hoshina, F. Huang, W. Huelsnitz, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, E. Jacobi, J. Jacobsen, K. Jagielski, G. S. Japaridze, K. Jero, O. Jlelati, M. Jurkovic, B. Kaminsky, A. Kappes, T. Karg, A. Karle, M. Kauer, A. Keivani, J. L. Kelley, A. Kheirandish, J. Kiryluk, J. Kläs, S. R. Klein, J. H. Köhne, G. Kohnen, H. Kolanoski, A. Koob, L. Köpke, C. Kopper, S. Kopper, D. J. Koskinen, M. Kowalski, A. Kriesten, K. Krings, G. Kroll, M. Kroll, J. Kunnen, N. Kurahashi, T. Kuwabara, M. Labare, D. T. Larsen, M. J. Larson, M. Lesiak-Bzdak, M. Leuermann, J. Leute, J. Lünemann, J. Madsen, G. Maggi, R. Maruyama, K. Mase, H. S. Matis, R. Maunu, F. McNally, K. Meagher, M. Medici, A. Meli, T. Meures, S. Miarecki, E. Middell, E. Middlemas, N. Milke, J. Miller, L. Mohrmann, T. Montaruli, R. Morse, R. Nahnhauer, U. Naumann, H. Niederhausen, S. C. Nowicki, D. R. Nygren, A. Obertacke, S. Odrowski, A. Olivas, A. Omairat, A. O'Murchadha, T. Palczewski, L. Paul, O. Penek, J. A. Pepper, C. Pérez De Los Heros, C. Pfendner, D. Pieloth, E. Pinat, J. Posselt, P. B. Price, G. T. Przybylski, J. Pütz, M. Quinnan, L. Rädel, M. Rameez, K. Rawlins, P. Redl, I. Rees, R. Reimann, M. Relich, E. Resconi, W. Rhode, M. Richman, B. Riedel, S. Robertson, J. P. Rodrigues, M. Rongen, C. Rott, T. Ruhe, B. Ruzybayev, D. Ryckbosch, S. M. Saba, H. G. Sander, J. Sandroos, M. Santander, S. Sarkar, K. Schatto, F. Scheriau, T. Schmidt, M. Schmitz, S. Schoenen, S. Schöneberg, A. Schönwald, A. Schukraft, L. Schulte, O. Schulz, D. Seckel, Y. Sestayo, S. Seunarine, R. Shanidze, M. W.E. Smith, D. Soldin, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, N. A. Stanisha, A. Stasik, T. Stezelberger, R. G. Stokstad, A. Stößl, E. A. Strahler, R. Ström, N. L. Strotjohann, G. W. Sullivan, H. Taavola, I. Taboada, A. Tamburro, A. Tepe, S. Ter-Antonyan, A. Terliuk, G. Tešić, S. Tilav, P. A. Toale, M. N. Tobin, D. Tosi, M. Tselengidou, E. Unger, M. Usner, S. Vallecorsa, N. Van Eijndhoven, J. Vandenbroucke, J. Van Santen, M. Vehring, M. Voge, M. Vraeghe, C. Walck, M. Wallraff, Ch Weaver, M. Wellons, C. Wendt, S. Westerhoff, B. J. Whelan, N. Whitehorn, C. Wichary, K. Wiebe, C. H. Wiebusch, D. R. Williams, H. Wissing, M. Wolf, T. R. Wood, K. Woschnagg, D. L. Xu, X. W. Xu, J. P. Yanez, G. Yodh, S. Yoshida, P. Zarzhitsky, J. Ziemann, S. Zierke, M. Zoll
  • University of Adelaide
  • Deutsches Elektronen-Synchrotron (DESY)
  • University of Canterbury
  • University of Geneva
  • University of Wisconsin
  • Oskar Klein Centre
  • Friedrich Alexander Universität Erlangen-Nürnberg
  • The Pennsylvania State University
  • RWTH Aachen University
  • South Dakota School of Mines and Technology
  • University of California, Irvine
  • Johannes Gutenberg University
  • University of California at Berkeley
  • Ohio State University
  • Max-Planck-lnstitut für Kohlenforschung
  • Bergische Universität Wuppertal
  • University of Maryland, College Park
  • Technical University of Munich
  • University of Kansas
  • Lawrence Berkeley National Laboratory
  • Uppsala University
  • Sungkyunkwan University
  • University of Bonn
  • VUB Neurology
  • University of Alberta
  • Georgia Institute of Technology
  • University of Toronto
  • pro3dure medical GmbH
  • Ghent University
  • Humboldt-Universität zu Berlin
  • Michigan State University
  • University of Delaware
  • Southern University and A&M College
  • Chiba-U
  • University of Wisconsin-Madison
  • Université Libre de Bruxelles
  • Clark-Atlanta University
  • Yale University
  • SUNY
  • University of Mons
  • Niels Bohr Institutet
  • Drexel University
  • University of Wisconsin-River Falls
  • University of Alabama
  • University of Alaska Anchorage
  • University of Oxford

Research output: Contribution to journalArticlepeer-review

307 Scopus citations

Abstract

The IceCube Neutrino Observatory was designed primarily to search for high-energy (TeV-PeV) neutrinos produced in distant astrophysical objects. A search for 100TeV neutrinos interacting inside the instrumented volume has recently provided evidence for an isotropic flux of such neutrinos. At lower energies, IceCube collects large numbers of neutrinos from the weak decays of mesons in cosmic-ray air showers. Here we present the results of a search for neutrino interactions inside IceCube's instrumented volume between 1 TeV and 1 PeV in 641 days of data taken from 2010-2012, lowering the energy threshold for neutrinos from the southern sky below 10 TeV for the first time, far below the threshold of the previous high-energy analysis. Astrophysical neutrinos remain the dominant component in the southern sky down to a deposited energy of 10 TeV. From these data we derive new constraints on the diffuse astrophysical neutrino spectrum, Φν=2.06-0.3+0.4×10-18(Eν/105GeV)-2.46±0.12GeV-1cm-2sr-1s-1 for 25TeV<Eν<1.4PeV, as well as the strongest upper limit yet on the flux of neutrinos from charmed-meson decay in the atmosphere, 1.52 times the benchmark theoretical prediction used in previous IceCube results at 90% confidence.

Original languageEnglish
Article number022001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume91
Issue number2
DOIs
StatePublished - 5 Jan 2015

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