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Extending the search for neutrino point sources with iceCube above the horizon

  • R. Abbasi
  • , Y. Abdou
  • , T. Abu-Zayyad
  • , J. Adams
  • , J. A. Aguilar
  • , M. Ahlers
  • , K. Andeen
  • , J. Auffenberg
  • , X. Bai
  • , M. Baker
  • , S. W. Barwick
  • , R. Bay
  • , J. L.Bazo Alba
  • , K. Beattie
  • , J. J. Beatty
  • , S. Bechet
  • , J. K. Becker
  • , K. H. Becker
  • , M. L. Benabderrahmane
  • , J. Berdermann
  • P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, D. J. Boersma, C. Bohm, O. Botner, L. Bradley, J. Braun, D. Breder, M. Carson, T. Castermans, D. Chirkin, B. Christy, J. Clem, S. Cohen, D. F. Cowen, M. V. D'Agostino, M. Danninger, C. T. Day, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. De Vries-Uiterweerd, T. Deyoung, J. C. Díaz-Vélez, J. Dreyer, J. P. Dumm, M. R. Duvoort, W. R. Edwards, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, T. Feusels, K. Filimonov, C. Finley, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, R. Ganugapati, L. Gerhardt, L. Gladstone, A. Goldschmidt, J. A. Goodman, R. Gozzini, D. Grant, T. Griesel, A. Groß, S. Grullon, R. M. Gunasingha, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, Y. Hasegawa, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J. P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, R. L. Imlay, M. Inaba, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K. H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, S. Knops, G. Kohnen, H. Kolanoski, L. Köpke, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, R. Lauer, R. Lehmann, D. Lennarz, J. Lundberg, J. Lünemann, J. Madsen, P. Majumdar, R. Maruyama, K. Mase, H. S. Matis, C. P. McParland, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, H. Miyamoto, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, M. Ono, S. Panknin, S. Patton, L. Paul, C. Pérez De Los Heros, J. Petrovic, A. Piegsa, D. Pieloth, A. C. Pohl, R. Porrata, N. Potthoff, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, C. Roucelle, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H. G. Sander, S. Sarkar, K. Schatto, S. Schlenstedt, T. Schmidt, D. Schneider, A. Schukraft, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, M. C. Stoufer, S. Stoyanov, E. A. Strahler, T. Straszheim, G. W. Sullivan, Q. Swillens, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, C. Terranova, S. Tilav, P. A. Toale, J. Tooker, D. Tosi, D. Turčan, N. Van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. Van Santen, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, A. Wiedemann, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, S. Yoshida
  • University of Wisconsin-Madison
  • Ghent University
  • University of Wisconsin-River Falls
  • University of Canterbury
  • University of Oxford
  • University of Wuppertal
  • University of Delaware
  • University of California at Irvine
  • University of California at Berkeley
  • German Electron Synchrotron
  • Lawrence Berkeley National Laboratory
  • Ohio State University
  • Université libre de Bruxelles
  • Ruhr University Bochum
  • University of Maryland
  • University of Kansas
  • RWTH Aachen University
  • Oskar Klein Centre
  • Uppsala University
  • Pennsylvania State University
  • Universite de Mons
  • Swiss Federal Institute of Technology Lausanne
  • Vrije Universiteit Brussel
  • TU Dortmund University
  • Utrecht University
  • Clark Atlanta University
  • Southern University and A&M College
  • Humboldt University of Berlin
  • Johannes Gutenberg University Mainz
  • Max Planck Institute for Nuclear Physics
  • Chiba University
  • Friedrich-Alexander University Erlangen-Nürnberg
  • University of Bonn
  • University of Bari
  • Linnaeus University
  • University of Alaska Anchorage
  • Georgia Institute of Technology
  • Department of Physics and Astronomy

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44 Citas (Scopus)

Resumen

Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.

Idioma originalInglés
Número de artículo221102
PublicaciónPhysical Review Letters
Volumen103
N.º22
DOI
EstadoPublicada - 24 nov. 2009
Publicado de forma externa

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