Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II

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A. Achterberg,³¹ M. Ackermann,³³ J. Adams,¹¹ J. Ahrens,²¹ K. Andeen,²⁰ J. Auffenberg,³² X. Bai,²³ B. Baret,⁹ S. W. Barwick,¹⁶ R. Bay,⁵ K. Beattie,⁷ T. Becka,²¹ J. K. Becker,¹³ K.-H. Becker,³² P. Berghaus,^8,15 D. Berley,¹² E. Bernardini,³³ D. Bertrand,⁸ D. Z. Besson,¹⁷ E. Blaufuss,¹² D. J. Boersma,²⁰ C. Bohm,²⁷ J. Bolmont,³³ S. Böser,³³ O. Botner,³⁰ A. Bouchta,³⁰ J. Braun,²⁰ T. Burgess,²⁷ T. Castermans,²² D. Chirkin,⁷ B. Christy,¹² J. Clem,²³ D. F. Cowen,^29,28 M. V. D'Agostino,⁵ A. Davour,³⁰ C. T. Day,⁷ C. De Clercq,⁹ L. Demirörs,²³ F. Descamps,¹⁴ P. Desiati,²⁰ T. DeYoung,²⁹ J. C. Diaz-Velez,²⁰ J. Dreyer,¹³ J. P. Dumm,²⁰ M. R. Duvoort,³¹ W. R. Edwards,⁷ R. Ehrlich,¹² J. Eisch,²⁰ R. W. Ellsworth,¹² P. A. Evenson,²³ O. Fadiran,³ A. R. Fazely,⁴ K. Filimonov,⁵ C. Finley,²⁰ M. M. Foerster,²⁹ B. D. Fox,²⁹ A. Franckowiak,³² R. Franke,³³ T. K. Gaisser,²³ J. Gallagher,¹⁹ R. Ganugapati,²⁰ H. Geenen,³² L. Gerhardt,¹⁶ A. Goldschmidt,⁷ J. A. Goodman,¹² R. Gozzini,²¹ T. Griesel,²¹ A. Groß,¹⁵ S. Grullon,²⁰ R. M. Gunasingha,⁴ M. Gurtner,³² C. Ha,²⁹ A. Hallgren,³⁰ F. Halzen,²⁰ K. Han,¹¹ K. Hanson,²⁰ D. Hardtke,⁵ R. Hardtke,²⁶ J. E. Hart,²⁹ Y. Hasegawa,¹⁰ T. Hauschildt,²³ D. Hays,⁷ J. Heise,³¹ K. Helbing,³² M. Hellwig,²¹ P. Herquet,²² G. C. Hill,²⁰ J. Hodges,²⁰ K. D. Hoffman,¹² B. Hommez,¹⁴ K. Hoshina,²⁰ D. Hubert,⁹ B. Hughey,²⁰ J.-P. Hülß,¹ P. O. Hulth,²⁷ K. Hultqvist,²⁷ S. Hundertmark,²⁷ M. Inaba,¹⁰ A. Ishihara,¹⁰ J. Jacobsen,⁷ G. S. Japaridze,³ H. Johansson,²⁷ A. Jones,⁷ J. M. Joseph,⁷ K.-H. Kampert,³² A. Kappes,²⁰ T. Karg,³² A. Karle,²⁰ H. Kawai,¹⁰ J. L. Kelley,²⁰ F. Kislat,⁶ N. Kitamura,²⁰ S. R. Klein,⁷ S. Klepser,³³ G. Kohnen,²² H. Kolanoski,⁶ L. Köpke,²¹ M. Kowalski,⁶ T. Kowarik,²¹ M. Krasberg,²⁰ K. Kuehn,¹⁶ M. Labare,⁸ H. Landsman,²⁰ R. Lauer,³³ H. Leich,³³ D. Leier,¹³ I. Liubarsky,¹⁸ J. Lundberg,³⁰ J. Lünemann,¹³ J. Madsen,²⁶ R. Maruyama,²⁰ K. Mase,¹⁰ H. S. Matis,⁷ T. McCauley,⁷ C. P. McParland,⁷ A. Meli,¹³ T. Messarius,¹³ P. Mészáros,^28,29 H. Miyamoto,¹⁰ A. Mokhtarani,⁷ T. Montaruli,²⁰ A. Morey,⁵ R. Morse,²⁰ S. M. Movit,²⁸ K. Münich,¹³ R. Nahnhauer,³³ J. W. Nam,¹⁶ P. Nießen,²³ D. R. Nygren,⁷ H. Ögelman,²⁰ A. Olivas,¹² S. Patton,⁷ C. Peña-Garay,²⁵ C. Pérez de los Heros,³⁰ A. Piegsa,²¹ D. Pieloth,³³ A. C. Pohl,³⁰ R. Porrata,⁵ J. Pretz,¹² P. B. Price,⁵ G. T. Przybylski,⁷ K. Rawlins,² S. Razzaque,^28,29 E. Resconi,¹⁵ W. Rhode,¹³ M. Ribordy,²² A. Rizzo,⁹ S. Robbins,³² P. Roth,¹² F. Rothmaier,²¹ C. Rott,²⁹ D. Rutledge,²⁹ D. Ryckbosch,¹⁴ H.-G. Sander,²¹ S. Sarkar,²⁴ K. Satalecka,³³ S. Schlenstedt,³³ T. Schmidt,¹² D. Schneider,²⁰ D. Seckel,²³ B. Semburg,³² S. H. Seo,²⁹ Y. Sestayo,¹⁵ S. Seunarine,¹¹ A. Silvestri,¹⁶ A. J. Smith,¹² M. Solarz,⁵ C. Song,²⁰ J. E. Sopher,⁷ G. M. Spiczak,²⁶ C. Spiering,³³ M. Stamatikos,²⁰ T. Stanev,²³ T. Stezelberger,⁷ R. G. Stokstad,⁷ M. C. Stoufer,⁷ S. Stoyanov,²³ E. A. Strahler,²⁰ T. Straszheim,¹² K.-H. Sulanke,³³ G. W. Sullivan,¹² T. J. Sumner,¹⁸ I. Taboada,⁵ O. Tarasova,³³ A. Tepe,³² L. Thollander,²⁷ S. Tilav,²³ M. Tluczykont,³³ P. A. Toale,²⁹ D. Tosi,³³ D. Turčan,¹² N. van Eijndhoven,³¹ J. Vandenbroucke,⁵ A. Van Overloop,¹⁴ V. Viscomi,²⁹ B. Voigt,³³ W. Wagner,²⁹ C. Walck,²⁷ H. Waldmann,³³ M. Walter,³³ Y.-R. Wang,²⁰ C. Wendt,²⁰ C. H. Wiebusch,¹ C. Wiedemann,²⁷ G. Wikström,²⁷ D. R. Williams,²⁹ R. Wischnewski,³³ H. Wissing,¹ K. Woschnagg,⁵ X. W. Xu,⁴ G. Yodh,¹⁶ S. Yoshida,¹⁰ and J. D. Zornoza²⁰

(IceCube Collaboration)

¹III Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
²Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, Alaska 99508, USA
³CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
⁴Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
⁵Department of Physics, University of California, Berkeley, California 94720, USA
⁶Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
⁷Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
⁸Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
⁹Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
¹⁰Department of Physics, Chiba University, Chiba 263-8522, Japan
¹¹Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
¹²Department of Physics, University of Maryland, College Park, Maryland 20742, USA
¹³Department of Physics, Universität Dortmund, D-44221 Dortmund, Germany
¹⁴Department of Subatomic and Radiation Physics, University of Gent, B-9000 Gent, Belgium
¹⁵Max-Planck-Institut für Kernphysik, D-69177 Heidelberg, Germany
¹⁶Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
¹⁷Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA
¹⁸Blackett Laboratory, Imperial College, London SW7 2BW, United Kingdom
¹⁹Department of Astronomy, University of Wisconsin, Madison, Wisconsin 53706, USA
²⁰Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
²¹Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
²²University of Mons-Hainaut, 7000 Mons, Belgium
²³Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
²⁴Department of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom
²⁵Institute for Advanced Study, Princeton, New Jersey 08540, USA
²⁶Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
²⁷Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
²⁸Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
²⁹Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
³⁰Division of High Energy Physics, Uppsala University, S-75121 Uppsala, Sweden
³¹Department of Physics and Astronomy, Utrecht University/SRON, NL-3584 CC Utrecht, The Netherlands
³²Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
³³DESY, D-15735 Zeuthen, Germany

See Also: Erratum

Received 24 April 2007; published 31 August 2007

Asearch for TeV-PeV muon neutrinos from unresolved sources was performedon AMANDA-II data collected between 2000 and 2003 with anequivalent live time of 807 days. This diffuse analysis sought tofind an extraterrestrial neutrino flux from sources with nonthermal components.The signal is expected to have a harder spectrum thanthe atmospheric muon and neutrino backgrounds. Since no excess ofevents was seen in the data over the expected background,an upper limit of E²Phi_90%C.L.<7.4×10^-8 GeV cm^-2 s^-1 sr^-1 is placed on the diffuseflux of muon neutrinos with a Phi[proportional]E^-2 spectrum in theenergy range 16 TeV to 2.5 PeV. This is currently the mostsensitive Phi[proportional]E^-2 diffuse astrophysical neutrino limit. We also set upperlimits for astrophysical and prompt neutrino models, all of whichhave spectra different from Phi[proportional]E^-2.

URL:	http://link.aps.org/doi/10.1103/PhysRevD.76.042008
DOI:	10.1103/PhysRevD.76.042008
PACS:	95.55.Vj; 95.75.-z; 95.85.Ry 95.55.Vj Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors 95.75.-z Astronomical observation and data reduction techniques; computer modeling and simulation 95.85.Ry Neutrino, muon, pion, and other elementary particle astronomical observations; cosmic rays YEAR: 2007

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Erratum

Erratum: Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II [Phys. Rev. D 76, 042008 (2007)]
A. Achterberg, M. Ackermann, J. Adams et al.
Phys. Rev. D 77, 089904 (E) (2008)