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15 results on '"T. Messarius"'

1. Muon track reconstruction and data selection techniques in AMANDA

Author

P. B. Price, T. O. B. Schmidt, C. Pérez de los Heros, T. Becka, M. Kestel, Kurt Woschnagg, T. DeYoung, Dmitry Chirkin, Staffan Carius, D. Steele, S. Böser, Jodi Cooley, Matthias Leuthold, Elisa Bernardini, D. R. Nygren, R. Ganugapati, P. Herquet, D. F. Cowen, Marek Kowalski, P. Steffen, M. Solarz, Jan Conrad, T. Feser, S. Richter, I. Taboada, T. Castermans, H. S. Matis, K. Rawlins, M. Hellwig, P. Miocinovic, Yajun Wang, H. G. Sander, Francis Halzen, Michael Stamatikos, S. Schlenstedt, C. P. McParland, R. Hardtke, Markus Gaug, B. Collin, D. J. Boersma, James Madsen, C. Wiedemann, A. Goldschmidt, I. Liubarsky, David A. Schneider, A. Silvestri, J. P Dewulf, G. C. Hill, R. G. Stokstad, C. H. Wiebusch, Hakki Ögelman, R. Wischnewski, P. Lindahl, Christian Spiering, Y. Minaeva, R. C. Bay, K.-H. Becker, M. Ribordy, K. Helbing, Heiko Geenen, R. Nahnhauer, J. Rodríguez Martino, K. Kuehn, K. Schinarakis, T. Burgess, Othmane Bouhali, T. Messarius, R. Morse, L. Gerhardt, J. Ahrens, Ph. Olbrechts, K. Münich, K. Hultqvist, T. Neunhöffer, Albrecht Karle, A. Biron, Glenn Spiczak, Xinhua Bai, J. W. Nam, L. Thollander, B. Hughey, H. Leich, S. Tilav, P. C. Mock, R. Schwarz, Kael Hanson, Paolo Desiati, R. Porrata, A. C. Pohl, Gerald Przybylski, K. H. Sulanke, Olga Botner, D. Bertrand, C. De Clercq, S. W. Barwick, C. Walck, Thomas K. Gaisser, G. B. Yodh, Torsten Harenberg, Elisa Resconi, J. K. Becker, T. Hauschildt, Adam Bouchta, Allan Hallgren, Ole Streicher, S. Hundertmark, J. I. Lamoureux, P. Niessen, D. Hubert, Axel Groß, L. Köpke, D. Ross, Pawel Marciniewski, Anna Davour, Janet Jacobsen, Wolfgang Wagner, P. O. Hulth, H. Wissing, Wolfgang Rhode, and P. Ekström

Subjects
Antarctic Muon And Neutrino Detector Array, Physics, AMANDA, Nuclear and High Energy Physics, Particle physics, Neutrino astrophysics, Neutrino telescope, Track reconstruction, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Detector, FOS: Physical sciences, Astrophysics, IceCube Neutrino Observatory, Neutrino detector, High Energy Physics::Experiment, Muon neutrino, Neutrino, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Lepton
Abstract

The Antarctic Muon And Neutrino Detector Array (AMANDA) is a high-energy neutrino telescope operating at the geographic South Pole. It is a lattice of photo-multiplier tubes buried deep in the polar ice between 1500m and 2000m. The primary goal of this detector is to discover astrophysical sources of high energy neutrinos. A high-energy muon neutrino coming through the earth from the Northern Hemisphere can be identified by the secondary muon moving upward through the detector. The muon tracks are reconstructed with a maximum likelihood method. It models the arrival times and amplitudes of Cherenkov photons registered by the photo-multipliers. This paper describes the different methods of reconstruction, which have been successfully implemented within AMANDA. Strategies for optimizing the reconstruction performance and rejecting background are presented. For a typical analysis procedure the direction of tracks are reconstructed with about 2 degree accuracy., 40 pages, 16 Postscript figures, uses elsart.sty

Published
2004
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2. The IceCube data acquisition system: Signal capture, digitization, and timestamping

Author

Chris Wendt, Spencer Klein, Subir Sarkar, J. M. Joseph, A. Laundrie, Chad Finley, D. Bertrand, Ignacio Taboada, C. P. McParland, Albrecht Karle, J. Ludvig, A. Silvestri, E. Kujawski, P. B. Price, T. O. B. Schmidt, S. Klepser, H. Kawai, Kara Hoffman, Y. Sestayo, Peter Mészáros, Karen Andeen, J. Ahrens, K. Mase, K. Meagher, Kurt Woschnagg, Paul Evenson, Henrik J. Johansson, A. Goldschmidt, J. Pretz, M. Danninger, Wolfgang Rhode, J. L. Kelley, Todor Stanev, Dawn Williams, W. Huelsnitz, K. Hoshina, A. Piegsa, Aya Ishihara, Markus Ahlers, M. M. Foerster, Dmitry Chirkin, K. Beattie, O. Schulz, Alexander Kappes, M. Gurtner, K. Helbing, Glenn Spiczak, S. Kleinfelder, Kael Hanson, F. Descamps, H. Miyamoto, R. Morse, B. Hughey, Anna Franckowiak, N. Potthoff, Jay Gallagher, K. H. Becker, Allan Hallgren, A. Meli, Steven W. Barwick, Johan Lundberg, T. Waldenmaier, J. W. Nam, M. Ribordy, R. Porrata, C. Vogt, B. D. Fox, P. Berghaus, J. Auffenberg, S. Euler, K. Laihem, K. Rawlins, Damian Pieloth, George Japaridze, D. Hubert, C. Walck, S. J. Patton, Reina H. Maruyama, M. Labare, D. Z. Besson, Samvel Ter-Antonyan, Chance W. Lewis, Paolo Desiati, R. Franke, K. Münich, A. Lucke, K. Kuehn, W. R. Edwards, Thomas K. Gaisser, G. B. Yodh, O. Engdegård, Chinh Vu, Dirk Ryckbosch, R. Ganugapati, A. C. Pohl, J. E. Sopher, D. F. Cowen, S. Stoyanov, D. Glowacki, A. Groß, H. F. Chen, R. Ehrlich, A. Olivas, Carsten Rott, K. Han, H. Wissing, C. Ha, M. Merck, A. Mohr, James Madsen, Soebur Razzaque, T. DeYoung, S. Hussain, L. Köpke, Dave Nygren, R. Nahnhauer, M. Hellwig, A. Van Overloop, Elisa Resconi, C. Roucelle, B. Bingham, Nathan Whitehorn, R. Gozzini, S. Schlenstedt, P. Herquet, S. Odrowski, Marek Kowalski, T. Straszheim, H. S. Matis, R.H. Minor, Joanna Kiryluk, E. Blaufuss, Olga Botner, H. G. Sander, D. Wharton, M. R. Duvoort, A. J. Smith, A. Tepe, O. Tarasova, R. L. Imlay, C. Wiedemann, W.J. Robbins, Julia Becker, D. Turcan, M. Ono, Teresa Montaruli, S. Westerhof, P. Sandstrom, Francis Halzen, T. Burgess, P. Redl, Karl-Heinz Sulanke, B. Christy, R. W. Ellsworth, J. Dreyer, H. Landsman, J. L. Bazo Alba, O. Fadiran, S. Grullon, V. Viscomi, Xianwu Xu, J. P. Dumm, S. Panknin, F. Rothmaier, J. Bolmont, G. Kohnen, D. Breeder, T. Kowarik, O. Depaepe, J.-P. Hülß, D. Leier, D. Tosi, M. Krasberg, Fabian Kislat, T. Messarius, J. P. Rodrigues, J. Lünemann, T. Stezelberger, J. C. Díaz-Vélez, James E. Braun, M. V. D'Agostino, B. Voigt, Darren Grant, T. Feusels, Q. Swillens, M. Baker, L. Demirörs, N. van Eijndhoven, Karl-Heinz Kampert, Kirill Filimonov, C. Song, W. Carithers, J. E. Jacobsen, R. Hardtke, G. W. Sullivan, S. Tilav, Xinhua Bai, M. Olivo, Klas Hultqvist, R. C. Bay, L. Gerhardt, H. Waldmann, C. T. Day, A. Mokhtarani, R. J. Lauer, C. Pérez de los Heros, John Heise, S. Yoshida, S. Seunarine, Christian Spiering, Gerald Przybylski, M. Inaba, E. A. Strahler, S. Böser, M. C. Stoufer, C. De Clercq, Christian Bohm, Konstancja Satalecka, D. Hays, Joseph T. Hodges, T. Becka, Justin Vandenbroucke, D. Rutledge, H. Leich, M. Walter, A. Rizzo, Markus Ackermann, S. M. Movit, S. H. Seo, Rasha Abbasi, D. Berley, John Clem, David A. Schneider, G. C. Hill, A. Muratas, D. J. Boersma, L. Gladstone, D. Seckel, G. Wikström, T. Griesel, Hermann Kolanoski, A. R. Fazely, P. A. Toale, A. W. Jones, T. Castermans, P. Roth, Christopher Wiebusch, Anna Davour, J. Haugen, D. Wahl, Timo Karg, P. O. Hulth, J. Eisch, M. Tluczykont, T. Kuwabara, G. de Vries-Uiterweerd, B. Semburg, Elisa Bernardini, J. Petrovic, R. M. Gunasingha, J. A. Goodman, Jenni Adams, S. Hickford, R. G. Stokstad, R. Wischnewski, Y. Hasegawa, and P. Nießen

Subjects
AMANDA, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, FOS: Physical sciences, Astrophysics, Neutrino telescope, Signal, High Energy Physics - Experiment, IceCube Neutrino Observatory, Nuclear physics, High Energy Physics - Experiment (hep-ex), Icecube, Data acquisition, Signal digitization, ddc:530, Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation, Physics, business.industry, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Timestamping, Instrumentation and Detectors (physics.ins-det), Analog signal, Transmission (telecommunications), Systems design, Timestamp, business, Computer hardware
Abstract

IceCube is a km-scale neutrino observatory under construction at the South Pole with sensors both in the deep ice (InIce) and on the surface (IceTop). The sensors, called Digital Optical Modules (DOMs), detect, digitize and timestamp the signals from optical Cherenkov-radiation photons. The DOM Main Board (MB) data acquisition subsystem is connected to the central DAQ in the IceCube Laboratory (ICL) by a single twisted copper wire-pair and transmits packetized data on demand. Time calibration is maintained throughout the array by regular transmission to the DOMs of precisely timed analog signals, synchronized to a central GPS-disciplined clock. The design goals and consequent features, functional capabilities, and initial performance of the DOM MB, and the operation of a combined array of DOMs as a system, are described here. Experience with the first InIce strings and the IceTop stations indicates that the system design and performance goals have been achieved., 42 pages, 20 figures, submitted to Nuclear Instruments and Methods A

Published
2009
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3. Detection of Atmospheric Muon Neutrinos with the IceCube 9-String Detector

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, education.field_of_study, Physics::Instrumentation and Detectors, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, Population, Detector, Astrophysics (astro-ph), High Energy Physics::Phenomenology, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Solar neutrino problem, Astrophysics, Neutrino detector, Astronomia, Measurements of neutrino speed, ddc:530, High Energy Physics::Experiment, Neutrino astronomy, Neutrino, education
Abstract

The IceCube neutrino detector is a cubic kilometer TeV to PeV neutrino detector under construction at the geographic South Pole. The dominant population of neutrinos detected in IceCube is due to meson decay in cosmic-ray air showers. These atmospheric neutrinos are relatively well understood and serve as a calibration and verification tool for the new detector. In 2006, the detector was approximately 10% completed, and we report on data acquired from the detector in this configuration. We observe an atmospheric neutrino signal consistent with expectations, demonstrating that the IceCube detector is capable of identifying neutrino events. In the first 137.4 days of live time, 234 neutrino candidates were selected with an expectation of 211±76.1(syst) ±14.5(stat) events from atmospheric neutrinos. © 2007 The American Physical Society.

Published
2007
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4. Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II

Author

H. Landsman, S. Schlenstedt, J. L. Kelley, John Clem, D. Rutledge, C. Wiedemann, H. Leich, D. J. Boersma, R. Porrata, Konstancja Satalecka, D. Hays, Jenni Adams, L. Gerhardt, George Japaridze, J. Auffenberg, C. Ha, K. Rawlins, Hakki Ögelman, S. H. Seo, J.D. Zornoza, D. Leier, Christian Spiering, Kara Hoffman, Y. Sestayo, Subir Sarkar, A. J. Smith, R. G. Stokstad, Wolfgang Rhode, A. Meli, R. Wischnewski, B. Hommez, Delia Tosi, James Madsen, Soebur Razzaque, P. B. Price, W. Wagner, Joseph T. Hodges, Justin Vandenbroucke, T. Burgess, A. Piegsa, M. Solarz, J. M. Joseph, I. Liubarsky, Ph. Herquet, N. Kitamura, B. Christy, K. Mase, A. Ishihara, T. O. B. Schmidt, J. Bolmont, R. Ehrlich, Kael Hanson, A. Olivas, Teresa Montaruli, T. J. Sumner, G. Kohnen, S. Grullon, R. M. Gunasingha, L. Demirörs, Elisa Resconi, M. Ribordy, E. Blaufuss, S. Böser, J. E. Hart, S. Seunarine, F. Rothmaier, Michael Stamatikos, A. Morey, K. Beattie, B. D. Fox, Kurt Woschnagg, Paul Evenson, P. Berghaus, T. Kowarik, K. Hultqvist, R. W. Ellsworth, J. A. Goodman, Fabian Kislat, N. van Eijndhoven, R. Morse, K. Helbing, A. Franckowiak, Albrecht Karle, Yi Wang, Paolo Desiati, Gerald Przybylski, M. Inaba, D. Z. Besson, T. McCauley, A. Van Overloop, Dmitry Chirkin, S. Robbins, M. C. Stoufer, J. Pretz, M. Krasberg, H. Waldmann, S. M. Movit, V. Viscomi, S. Patton, B. Voigt, Xinhua Bai, Alexander Kappes, M. Hellwig, Hermann Kolanoski, R. Gozzini, P. Meszaros, J. Dreyer, K. Han, M. Labare, A. W. Jones, Elisa Bernardini, K. H. Sulanke, H. G. Sander, P. Roth, A. Tepe, Todor Stanev, S. Yoshida, Olga Botner, A. Mokhtarani, Dawn Williams, K. Hoshina, Carlos Pena-Garay, C. Wendt, Johan Lundberg, Glenn Spiczak, O. Tarasova, H. Miyamoto, John S. Gallagher, M. Tluczykont, Chad Finley, D. Bertrand, D. F. Cowen, J. K. Becker, Christian Bohm, David A. Schneider, J.P. Hulss, H. Kawai, R. Ganugapati, A. C. Pohl, J. E. Sopher, S. R. Klein, D. Berley, G. C. Hill, A. Achterberg, B. Hughey, D. Seckel, K. Kuehn, W. R. Edwards, Heiko Geenen, A. R. Fazely, R. Franke, Tyce DeYoung, P. A. Toale, M. Gurtner, C. Walck, T. Karg, M. M. Foerster, S. Klepser, H. A. B. Johansson, T. Hauschildt, Thomas K. Gaisser, G. B. Yodh, Ignacio Taboada, Adam Bouchta, C.P. de los Heros, Allan Hallgren, T. Castermans, R. J. Lauer, C. De Clercq, D. R. Nygren, S. Hundertmark, Marek Kowalski, Markus Ackermann, T. Stezelberger, S. W. Barwick, G. W. Sullivan, H. S. Matis, M. V. D'Agostino, C. Song, D. Turcan, F. Descamps, Francis Halzen, O. Fadiran, C. T. Day, M. Walter, A. Rizzo, E. A. Strahler, T. Messarius, A. Gross, A. Silvestri, Karen Andeen, R. Nahnhauer, J. Ahrens, Anna Davour, J. Braun, Janet Jacobsen, P. O. Hulth, J. Eisch, B. Semburg, Damian Pieloth, D. Hubert, H. Wissing, L. Köpke, Kirill Filimonov, T. Straszheim, M. R. Duvoort, B. Baret, S. Tilav, Y. Hasegawa, K. H. Kampert, C. P. McParland, J. Lünemann, A. Goldschmidt, D. Hardtke, R. C. Bay, K.-H. Becker, Juan Carlos Diaz-Velez, S. Stoyanov, Dirk Ryckbosch, Carsten Rott, K. Münich, J. W. Nam, L. Thollander, Xianwu Xu, J. P. Dumm, Reina H. Maruyama, H. Wiebusch, R. Hardtke, P. Niessen, John Heise, T. Becka, G. Wikström, and T. Griesel

Subjects
Astroparticle physics, Physics, Nuclear and High Energy Physics, Range (particle radiation), Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), High Energy Physics::Phenomenology, FOS: Physical sciences, Flux, Cosmic ray, Astrophysics, Spectral line, Astronomia, Neutron detection, ddc:530, High Energy Physics::Experiment, Neutrino
Abstract

A search for TeV - PeV muon neutrinos from unresolved sources was performed on AMANDA-II data collected between 2000 and 2003 with an equivalent livetime of 807 days. This diffuse analysis sought to find an extraterrestrial neutrino flux from sources with non-thermal components. The signal is expected to have a harder spectrum than the atmospheric muon and neutrino backgrounds. Since no excess of events was seen in the data over the expected background, an upper limit of E^{2}\Phi_{90% C.L.} < 7.4 x 10^{-8} GeV cm^{-2} s^{-1} sr^{-1} is placed on the diffuse flux of muon neutrinos with a \Phi \propto E^{-2} spectrum in the energy range 16 TeV to 2.5 PeV. This is currently the most sensitive \Phi \propto E^{-2} diffuse astrophysical neutrino limit. We also set upper limits for astrophysical and prompt neutrino models, all of which have spectra different than \Phi \propto E^{-2}., Comment: 47 pages, 13 figures. This includes the original document and an erratum for the effective area tables

Published
2007
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5. Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope

Author

M. V. D'Agostino, C. Song, Albrecht Karle, C. T. Day, J. Pretz, J. M. Joseph, I. Liubarsky, Matthias Leuthold, K. Hultqvist, D. R. Nygren, R. Ehrlich, A. Olivas, E. A. Strahler, Carlos Pérez de los Heros, Jenni Adams, Marek Kowalski, D. Leier, T. Messarius, Kara Hoffman, Wolfgang Rhode, A. Meli, Christian Bohm, S. H. Seo, J.D. Zornoza, David A. Schneider, K. Kuehn, W. R. Edwards, H. Waldmann, P. Berghaus, Todor Stanev, Dawn Williams, C. Wendt, W. Wagner, T. Feser, Christian Spiering, F. Descamps, P. Roth, H. S. Matis, H. Miyamoto, J. E. Hart, K. Rawlins, D. Berley, M. Ribordy, G. C. Hill, R. G. Stokstad, Joseph T. Hodges, Justin Vandenbroucke, M. Kestel, Johan Lundberg, C. Walck, H. A. B. Johansson, H. Landsman, B. Christy, James Madsen, Soebur Razzaque, K. Helbing, N. Kitamura, Thomas K. Gaisser, G. B. Yodh, R. Morse, D. Turcan, Francis Halzen, N. van Eijndhoven, A. Ishihara, J. Bolmont, D. Seckel, M. Tluczykont, J. Dreyer, Teresa Montaruli, T. Castermans, K. Hoshina, D. Z. Besson, Glenn Spiczak, L. Gerhardt, Gerald Przybylski, S. Klepser, S. Robbins, B. Hommez, Heiko Geenen, A. R. Fazely, Tyce DeYoung, A. Piegsa, P. A. Toale, J. L. Kelley, D. Hays, E. Blaufuss, C. De Clercq, O. Fadiran, D. F. Cowen, B. Hughey, A. W. Jones, R. Ganugapati, A. C. Pohl, J. E. Sopher, K. Mase, T. McCauley, M. C. Stoufer, A. Achterberg, Markus Ackermann, S. W. Barwick, M. Solarz, S. M. Movit, K. Han, John Clem, C.P. Burgess, D. J. Boersma, D. Rutledge, D.W. Atlee, Ignacio Taboada, K. Beattie, Olga Botner, A. Morey, H. Leich, O. Tarasova, Subir Sarkar, X. W. Xu, A. Mokhtarani, Christopher Wiebusch, R. Wischnewski, M. Hellwig, A. Van Overloop, Hermann Kolanoski, R. Porrata, Peter Mészáros, J. P. Hulss, Elisa Bernardini, P. B. Price, K. H. Sulanke, H. G. Sander, T. J. Sumner, L. Demirörs, R. M. Gunasingha, Hakki Ögelman, A. J. Smith, T. O. B. Schmidt, G. Kohnen, T. Stezelberger, R. W. Ellsworth, T. Burgess, John N. Bahcall, S. Seunarine, Michael Stamatikos, S. Grullon, J. A. Goodman, Kurt Woschnagg, B. Voigt, Xinhua Bai, Paul Evenson, Dmitry Chirkin, J. W. Nam, L. Thollander, Karen Andeen, S. Stoyanov, K. Münich, P. Steffen, R. Nahnhauer, J. Lünemann, J. Ahrens, D. Hardtke, R. C. Bay, Juan Carlos Diaz-Velez, A. Gross, A. Silvestri, M. Walter, A. Rizzo, George Japaridze, S. Hundertmark, G. W. Sullivan, Elisa Resconi, S. Patton, Carlos Pena-Garay, Torsten Harenberg, Kirill Filimonov, Ph. Herquet, John Heise, Damian Pieloth, D. Hubert, T. Becka, K.-H. Becker, H. Wissing, L. Köpke, J. K. Becker, D. Bertrand, S. Böser, H. Kawai, Kael Hanson, S. R. Klein, T. Hauschildt, J. C. Gallagher, Adam Bouchta, Allan Hallgren, G. Wikström, M. Gurtner, T. Straszheim, R. Gozzini, Dirk Ryckbosch, A. Tepe, Yi Wang, Paolo Desiati, P. Niessen, K. H. Kampert, M. Krasberg, B. D. Fox, C. P. McParland, Carsten Rott, S. Yoshida, A. Goldschmidt, J. P. Dumm, J. Eisch, R. Hardtke, M. R. Duvoort, B. Baret, S. Tilav, P. O. Hulth, S. Schlenstedt, Anna Davour, J. Braun, and Janet Jacobsen

Subjects
Astroparticle physics, Physics, Nuclear and High Energy Physics, Muon, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Solar neutrino, Astrophysics (astro-ph), High Energy Physics::Phenomenology, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Solar neutrino problem, Sky, Astronomia, Measurements of neutrino speed, High Energy Physics::Experiment, ddc:530, Neutrino, Neutrino astronomy, media_common
Abstract

We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA-II neutrino telescope in the years 2000 to 2004, with a live-time of 1001 days. The sample of selected events consists of 4282 upward going muon tracks with high reconstruction quality and an energy larger than about 100 GeV. We found no indication of point sources of neutrinos and set 90% confidence level flux upper limits for an all-sky search and also for a catalog of 32 selected sources. For the all-sky search, our average (over declination and right ascension) experimentally observed upper limit \Phi^{0}=(E/TeV)^\gamma d\Phi/dE to a point source flux of muon and tau neutrino (detected as muons arising from taus) is \Phi_{\nu_\mu}^{0} + \Phi_{\nu_\tau}^{0} = 11.1 x 10^{-11} TeV^-1 cm^-2 s^-1, in the energy range between 1.6 TeV and 2.5 PeV for a flavor ratio \Phi_{\nu_\mu}^{0} / \Phi_{\nu_\tau}^{0}= 1 and assuming a spectral index \gamma=2. It should be noticed that this is the first time we set upper limits to the flux of muon and tau neutrinos. In previous papers we provided muon neutrino upper limits only neglecting the sensitivity to a signal from tau neutrinos, which improves the limits by 10% to 16%. The value of the average upper limit presented in this work corresponds to twice the limit on the muon neutrino flux \Phi_{\nu_\mu}^{0} = 5.5 \cdot 10^{-11} TeV^-1 cm^-2 s^-1. A stacking analysis for preselected active galactic nuclei and a search based on the angular separation of the events were also performed. We report the most stringent flux upper limits to date, including the results of a detailed assessment of systematic uncertainties., Comment: 32 pages, 9 figures, submitted to Phys. Rev. D

Published
2007
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6. Limits on the high-energy gamma and neutrino fluxes from the SGR 1806-20 giant flare of 27 December 2004 with the AMANDA-II detector

Author

A. Achterberg, M. Ackermann, J. Adams, J. Ahrens, K. Andeen, D. W. Atlee, J. N. Bahcall, X. Bai, B. Baret, M. Bartelt, S. W. Barwick, R. Bay, K. Beattie, T. Becka, J. K. Becker, K.-H. Becker, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, E. Blaufuss, D. J. Boersma, C. Bohm, J. Bolmont, S. Böser, O. Botner, A. Bouchta, J. Braun, C. Burgess, T. Burgess, T. Castermans, D. Chirkin, B. Christy, J. Clem, D. F. Cowen, M. V. D’Agostino, A. Davour, C. T. Day, C. De Clercq, L. Demirörs, F. Descamps, P. Desiati, T. DeYoung, J. C. Diaz-Velez, J. Dreyer, J. P. Dumm, M. R. Duvoort, W. R. Edwards, R. Ehrlich, J. Eisch, R. W. Ellsworth, P. A. Evenson, O. Fadiran, A. R. Fazely, T. Feser, K. Filimonov, B. D. Fox, T. K. Gaisser, J. Gallagher, R. Ganugapati, H. Geenen, L. Gerhardt, A. Goldschmidt, J. A. Goodman, R. Gozzini, S. Grullon, A. Groß, R. M. Gunasingha, M. Gurtner, A. Hallgren, F. Halzen, K. Han, K. Hanson, D. Hardtke, R. Hardtke, T. Harenberg, J. E. Hart, T. Hauschildt, D. Hays, J. Heise, K. Helbing, M. Hellwig, P. Herquet, G. C. Hill, J. Hodges, K. D. Hoffman, B. Hommez, K. Hoshina, D. Hubert, B. Hughey, P. O. Hulth, K. Hultqvist, S. Hundertmark, J.-P. Hülß, A. Ishihara, J. Jacobsen, G. S. Japaridze, A. Jones, J. M. Joseph, K.-H. Kampert, A. Karle, H. Kawai, J. L. Kelley, M. Kestel, N. Kitamura, S. R. Klein, S. Klepser, G. Kohnen, H. Kolanoski, L. Köpke, M. Krasberg, K. Kuehn, H. Landsman, H. Leich, I. Liubarsky, J. Lundberg, J. Madsen, K. Mase, H. S. Matis, T. McCauley, C. P. McParland, A. Meli, T. Messarius, P. Mészáros, H. Miyamoto, A. Mokhtarani, T. Montaruli, A. Morey, R. Morse, S. M. Movit, K. Münich, R. Nahnhauer, J. W. Nam, P. Nießen, D. R. Nygren, H. Ögelman, Ph. Olbrechts, A. Olivas, S. Patton, C. Peña-Garay, C. Pérez de los Heros, A. Piegsa, D. Pieloth, A. C. Pohl, R. Porrata, J. Pretz, P. B. Price, G. T. Przybylski, K. Rawlins, S. Razzaque, F. Refflinghaus, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, S. Robbins, P. Roth, C. Rott, D. Rutledge, D. Ryckbosch, H.-G. Sander, S. Sarkar, S. Schlenstedt, T. Schmidt, D. Schneider, D. Seckel, S. H. Seo, S. Seunarine, A. Silvestri, A. J. Smith, M. Solarz, C. Song, J. E. Sopher, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, P. Steffen, T. Stezelberger, R. G. Stokstad, M. C. Stoufer, S. Stoyanov, E. A. Strahler, T. Straszheim, K.-H. Sulanke, G. W. Sullivan, T. J. Sumner, I. Taboada, O. Tarasova, A. Tepe, L. Thollander, S. Tilav, P. A. Toale, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, B. Voigt, W. Wagner, C. Walck, H. Waldmann, M. Walter, Y.-R. Wang, C. Wendt, C. H. Wiebusch, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, X. W. Xu, G. Yodh, S. Yoshida, and J. D. Zornoza

Subjects
Astroparticle physics, Physics, Muon, Solar flare, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Gamma ray, General Physics and Astronomy, Astronomy, FOS: Physical sciences, Astrophysics, Galaxy, law.invention, Pulsar, law, Astronomia, High Energy Physics::Experiment, Neutrino, Flare
Abstract

On December 27th 2004, a giant gamma flare from the Soft Gamma-ray Repeater 1806-20 saturated many satellite gamma-ray detectors. This event was by more than two orders of magnitude the brightest cosmic transient ever observed. If the gamma emission extends up to TeV energies with a hard power law energy spectrum, photo-produced muons could be observed in surface and underground arrays. Moreover, high-energy neutrinos could have been produced during the SGR giant flare if there were substantial baryonic outflow from the magnetar. These high-energy neutrinos would have also produced muons in an underground array. AMANDA-II was used to search for downgoing muons indicative of high-energy gammas and/or neutrinos. The data revealed no significant signal. The upper limit on the gamma flux at 90% CL is dN/dE < 0.05 (0.5) TeV^-1 m^-2 s^-1 for gamma=-1.47 (-2). Similarly, we set limits on the normalization constant of the high-energy neutrino emission of 0.4 (6.1) TeV^-1 m^-2 s^-1 for gamma=-1.47 (-2)., 14 pages, 3 figures

Published
2006

7. The IceCube prototype string in Amanda

Author

Kael Hanson, J. K. Becker, S. Stoyanov, P. Roth, Peter Mészáros, K. Han, B. Hommez, M. M. Foerster, Yi Wang, Paolo Desiati, D. Z. Besson, J. Lünemann, C.P. Burgess, E. A. Strahler, R. C. Bay, D. Bertrand, S. H. Seo, J.D. Zornoza, A. C. Pohl, S. R. Klein, G. S. Japaridze, J. Bolmont, A. Tepe, A. W. Jones, M. Krasberg, R. Hardtke, T. Hauschildt, P. Berghaus, Johan Lundberg, H. S. Matis, Anna Davour, K. H. Sulanke, D. Turcan, D. Hardtke, J. Braun, S. Yoshida, S. Klepser, Francis Halzen, Janet Jacobsen, M. Solarz, D. R. Nygren, T. Griesel, P. O. Hulth, J. Eisch, R. Ganugapati, J. E. Sopher, N. van Eijndhoven, P. Herquet, D. F. Cowen, J. E. Hart, K. Münich, Y. Hasegawa, T. DeYoung, S. J. Patton, J. Gallagher, Adam Bouchta, A. Piegsa, A. Achterberg, K. Andeen, C.P. de los Heros, B. Semburg, M. Labare, P. A. Evenson, Marek Kowalski, P. B. Price, S. Schlenstedt, M. Gurtner, H. Wissing, K. Mase, L. Demirors, S. Böser, R. W. Ellsworth, M. Tluczykont, Allan Hallgren, David A. Schneider, J.P. Hulss, T. O. B. Schmidt, A. Gross, G. C. Hill, B. D. Fox, A. Van Overloop, B. Baret, J. W. Nam, S. Grullon, Kurt Woschnagg, L. Thollander, F. Descamps, R. Ehrlich, D. Seckel, Heiko Geenen, P. A. Toale, J. Adams, A. Morey, J. P. Dumm, H. Landsman, A. R. Fazely, K. Kuehn, R. M. Gunasingha, Wolfgang Wagner, Dmitry Chirkin, T. Burgess, G. Kohnen, Albrecht Karle, J. L. Kelley, D. J. Boersma, Michael Stamatikos, Timo Karg, Gerald Przybylski, M. Walter, J. A. Goodman, A. Silvestri, K. Hoshina, David R. Williams, A. J. S. Smith, T. J. Sumner, H. Kolanoski, M. R. Duvoort, Glenn Spiczak, S. M. Movit, M. Ribordy, T. Stezelberger, R. Porrata, J. Dreyer, L. Gerhardt, J. Heise, K. Helbing, P. Steffen, Olga Botner, B. Hughey, A. Olivas, C. Song, J. N. Bahcall, Elisa Resconi, Anna Franckowiak, J. Hodges, R. Nahnhauer, Hakki Ögelman, C. T. Day, Elisa Bernardini, J. Clem, E. Blaufuss, J. Ahrens, T. Messarius, D. Hays, O. Tarasova, T. Kowarik, S. Hundertmark, B. Voigt, B. Christy, R. G. Stokstad, Xinhua Bai, R. Wischnewski, G. W. Sullivan, K. Hultqvist, N. Kitamura, Karl-Heinz Kampert, Kirill Filimonov, Carlos Pena-Garay, D. Leier, O. Fadiran, A. Rizzo, T. Straszheim, S. Robbins, Wolfgang Rhode, A. Meli, H. Waldmann, T. McCauley, Damian Pieloth, D. Hubert, Christian Spiering, L. Köpke, Justin Vandenbroucke, Subir Sarkar, K. Beattie, Surujhdeo Seunarine, K. Rawlins, James Madsen, Soebur Razzaque, K. D. Hoffman, A. Ishihara, T. Stanev, M. C. Stoufer, D. Rutledge, H. Leich, J. C. Diaz-Velez, M. V. D'Agostino, H. Kawai, M. Hellwig, H. G. Sander, J. M. Joseph, I. Liubarsky, C. H. Wiebusch, C. Wendt, Carsten Rott, R. Morse, T. Montaruli, H. Miyamoto, Xianwu Xu, C. Bohm, C. Walck, D. Berley, Thomas K. Gaisser, G. B. Yodh, P. Niessen, G. Wikstrom, I. Taboada, J. Auffenberg, T. Castermans, H. Johansson, T. Becka, J. Pretz, V. Viscomi, K.-H. Becker, A. Mokhtarani, C. De Clercq, M. Inaba, Markus Ackermann, Dirk Ryckbosch, S. W. Barwick, W. R. Edwards, S. Tilav, R. Gozzini, C. P. McParland, and A. Goldschmidt

Subjects
Antarctic Muon And Neutrino Detector Array, Astroparticle physics, Physics, Nuclear and High Energy Physics, Photomultiplier, Photon, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy, Astrophysics, Amanda, IceCube, Data acquisition, Signal digitization, Instrumentation, Cherenkov radiation
Abstract

The Antarctic Muon And Neutrino Detector Array (Amanda) is a high-energy neutrino telescope. It is a lattice of optical modules (OM) installed in the clear ice below the South Pole Station. Each OM contains a photomultiplier tube (PMT) that detects photons of Cherenkov light generated in the ice by muons and electrons. IceCube is a cubic-kilometer-sized expansion of Amanda currently being built at the South Pole. In IceCube the PMT signals are digitized already in the optical modules and transmitted to the surface. A prototype string of 41 OMs equipped with this new all-digital technology was deployed in the Amanda array in the year 2000. In this paper we describe the technology and demonstrate that this string serves as a proof of concept for the IceCube array. Our investigations show that the OM timing accuracy is 5 ns. Atmospheric muons are detected in excellent agreement with expectations with respect to both angular distribution and absolute rate.

Published
2006

8. First year performance of the IceCube neutrino telescope

Author

A. J. Smith, R. Wischnewski, Kael Hanson, T. Burgess, K. Hoshina, Steven W. Barwick, Subir Sarkar, Christian Bohm, Glenn Spiczak, Karen Andeen, P. Steffen, D. Z. Besson, J. Haugen, H. S. Matis, F. Refflinghaus, B. Hughey, David A. Schneider, Yi Wang, Paolo Desiati, E. Blaufuss, Albrecht Karle, K. H. Becker, J. E. Sopher, K. Mase, A. Elcheikh, J. Pretz, J. W. Nam, L. Thollander, G. C. Hill, D. Turcan, Francis Halzen, A. Muratas, L. Demirörs, Claire Pettersen, D. Seckel, S. Grullon, Heiko Geenen, A. R. Fazely, Elisa Bernardini, P. A. Toale, P. Berghaus, T. McCauley, G. W. Sullivan, M. C. Stoufer, S. H. Seo, J.D. Zornoza, H. Landsman, J. Ahrens, G. Kohnen, R. W. Ellsworth, Aya Ishihara, J. M. Joseph, J.N. Bahcall, H. Miyamoto, J. C. Díaz-Vélez, T. Stezelberger, P. Wisniewski, M. Krasberg, M. V. D'Agostino, M. Kestel, M. Ribordy, Jenni Adams, A. Laundrie, S. M. Movit, K. Han, Christian Spiering, M. H. Whitney, D. Hays, Anna Davour, J.-P. Hülß, Ignacio Taboada, T. Messarius, C. Song, Olga Botner, Jay Gallagher, Joseph T. Hodges, W. Wagner, Justin Vandenbroucke, Klas Hultqvist, Peter Mészáros, K. Helbing, D. Hardtke, R. G. Stokstad, P. Herquet, A. Mokhtarani, H. Kawai, Chris Wendt, R. C. Bay, Janet Jacobsen, S. Yoshida, Xinhua Bai, C. T. Day, R. Ehrlich, A. Olivas, N. Kitamura, D. Berley, S. Stoyanov, A. W. Jones, I. Liubarsky, J. Dreyer, T. Castermans, A. Groß, E. A. Strahler, J. Cherwinka, R. M. Gunasingha, A. Silvestri, Ph. Olbrechts, B. Voigt, John Clem, M. Solarz, Christopher Wiebusch, J. E. Hart, Michael Stamatikos, C. Walck, D.W. Atlee, J. A. Goodman, R. Porrata, C.P. Burgess, J. Eisch, D. J. Boersma, J. Baccus, K. Kuehn, W. R. Edwards, C. Mackenzie, P. O. Hulth, Hermann Kolanoski, S. Böser, O. Tarasova, Hakki Ögelman, N. van Eijndhoven, R. Morse, Gerald Przybylski, T. Feser, S. Robbins, J.K. Becker, K.-H. Sulanke, M. Hellwig, H. G. Sander, George Japaridze, Elisa Resconi, S. Hundertmark, James E. Braun, T. Hauschildt, Adam Bouchta, Allan Hallgren, Torsten Harenberg, B. D. Fox, L. Gerhardt, A. Piegsa, A. Rizzo, C. De Clercq, A. Morey, A. Van Overloop, K. Rawlins, Markus Ackermann, K. Münich, M.G. Greene, D. Bertrand, S. Patton, James Madsen, Todor Stanev, Dawn Williams, Soebur Razzaque, Carlos Pena-Garay, T. DeYoung, O. Fadiran, H. Waldmann, Teresa Montaruli, P. Sandstrom, Thomas K. Gaisser, G. B. Yodh, M. Walter, S. Seunarine, D. Rutledge, M. Gurtner, R. Gozzini, M. Bartelt, A. Tepe, R. Nahnhauer, S. Klepser, K. Beattie, P. B. Price, Kurt Woschnagg, Paul Evenson, Dmitry Chirkin, Johan Lundberg, R. Ganugapati, A. C. Pohl, D. F. Cowen, A. Achterberg, Carsten Rott, Dave Nygren, Xianwu Xu, R. Hardtke, H. Wissing, C. Pérez de los Heros, John Heise, T. Becka, G. Wikström, Damian Pieloth, D. Hubert, L. Köpke, H. Leich, A. Meli, Karl-Heinz Kampert, Kirill Filimonov, Spencer Klein, Kara Hoffman, Wolfgang Rhode, J. L. Kelley, S. Schlenstedt, M. R. Duvoort, B. Baret, S. Tilav, P. Nießen, C. P. McParland, and A. Goldschmidt

Subjects
Astroparticle physics, Physics, Photomultiplier, Muon, Performance, Detector, Astrophysics (astro-ph), Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, IceCube Neutrino Observatory, Amanda, IceCube, Detection, Data acquisition, First year, IceTop, Neutrino, South pole, Astronomia, Cherenkov radiation
Abstract

The first sensors of the IceCube neutrino observatory were deployed at the South Pole during the austral summer of 2004-2005 and have been producing data since February 2005. One string of 60 sensors buried in the ice and a surface array of eight ice Cherenkov tanks took data until December 2005 when deployment of the next set of strings and tanks began. We have analyzed these data, demonstrating that the performance of the system meets or exceeds design requirements. Times are determined across the whole array to a relative precision of better than 3 ns, allowing reconstruction of muon tracks and light bursts in the ice, of air-showers in the surface array and of events seen in coincidence by surface and deep-ice detectors separated by up to 2.5 km. © 2006 Elsevier B.V. All rights reserved.

Published
2006

9. On the selection of AGN neutrino source candidates for a source stacking analysis with neutrino telescopes

Author

J.K. Becker, O. Tarasova, H. Wissing, H. Waldmann, X. Bai, W. Wagner, J. Braun, J.N. Bahcall, J.L. Kelley, S. Patton, C. Walck, S. Seunarine, A. Groß, K. Helbing, B. Voigt, R. Ehrlich, K. Kuehn, M. Bartelt, K. Filimonov, M.G. Greene, R. Nahnhauer, R. Bay, C. Spiering, Dawn Williams, K. Mase, N. Kitamura, R. Morse, Soebur Razzaque, G.W. Sullivan, G. Wikström, L. Köpke, J. E. Hart, J. Gallagher, D. Hubert, W. Rhode, D. F. Cowen, T.K. Gaisser, D. Hays, J. Madsen, C. Song, Ph. Olbrechts, R. Hardtke, J. Ahrens, A. Karle, T. Castermans, D. Seckel, J. Vandenbroucke, P. L. Biermann, A. Olivas, M. Kestel, T. Hauschildt, S.W. Barwick, T. Stezelberger, D. Bertrand, A. Meli, D. Chirkin, R.W. Ellsworth, D.Z. Besson, S. Grullon, B. Baret, Adam Bouchta, P.A. Evenson, H. Geenen, Carsten Rott, J.A. Goodman, A. Silvestri, K. Beattie, X.W. Xu, Karl-Heinz Kampert, D. Berley, D. Pieloth, C.H. Wiebusch, D. Steele, D.W. Atlee, E. Blaufuss, Allan Hallgren, H. Leich, L. Thollander, M. Walter, M. Krasberg, S. Hundertmark, A. Goldschmidt, T. Burgess, H. Miyamoto, Peter Mészáros, Carlos Pena-Garay, J. Lundberg, J.W. Nam, A. Rizzo, D. Turčan, A.C. Pohl, H.-G. Sander, P.O. Hulth, S. H. Seo, I. Liubarsky, T. Montaruli, D. Rutledge, J.D. Zornoza, F. Halzen, K. Han, J.M. Joseph, C. Bohm, Elisa Bernardini, H. Landsman, K. Hanson, J. Dreyer, K. Hoshina, H. Ögelman, John Heise, S. Böser, K. Rawlins, J. Cooley, D. Schneider, J. Conrad, T. Stanev, C. Wendt, B. Hughey, Jenni Adams, P. Desiati, T. Feser, M. Leuthold, K. Münich, M.C. Stoufer, T. Harenberg, J. Clem, K. Hultqvist, R.H. Minor, Y.-R. Wang, R.G. Stokstad, Jennifer Pretz, R. Lang, H.S. Matis, R. Porrata, S. Klepser, M. Solarz, D.J. Boersma, P. Steffen, M. Ackermann, A.R. Fazely, C. De Clercq, P. Miočinović, W.R. Edwards, M. Stamatikos, G. Kohnen, M.R. Duvoort, A. Mokhtarani, R. M. Gunasingha, R. Ganugapati, M.V. D’Agostino, C.P. McParland, George Japaridze, P. Nießen, S. Yoshida, Elisa Resconi, A. Achterberg, P. Herquet, G.T. Przybylski, P.B. Price, S. Robbins, S. Stoyanov, G. Yodh, I. Taboada, F. Refflinghaus, K.D. Hoffman, C.T. Day, K. Woschnagg, L. Gerhardt, P. Berghaus, D. Hardtke, C.P. Burgess, A. Ishihara, Hermann Kolanoski, A.J. Smith, K.-H. Sulanke, B. Collin, T.J. Sumner, J.E. Sopher, T. Messarius, A. Tepe, H. Kawai, J. Jacobsen, K.-H. Becker, G.M. Spiczak, C. Pérez de los Heros, D.R. Nygren, S. M. Movit, A. W. Jones, R. Wischnewski, A. Davour, N. van Eijndhoven, M. Hellwig, S. Schlenstedt, S. Tilav, J. Hodges, A. Morey, S. Richter, T. Becka, Olga Botner, M. Ribordy, G. C. Hill, T. McCauley, Tyce DeYoung, P. A. Toale, and S.R. Klein

Subjects
AMANDA, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, IceCube, Luminosity, AGN, Neutrinos, Blazar, Astrophysics::Galaxy Astrophysics, Point sources, Source stacking, Astroparticle physics, Physics, Astrophysics (astro-ph), Astronomy, Astronomy and Astrophysics, Quasar, Neutrino detector, Astronomia, High Energy Physics::Experiment, Neutrino
Abstract

The sensitivity of a search for sources of TeV neutrinos can be improved by grouping potential sources together into generic classes in a procedure that is known as source stacking. In this paper, we define catalogs of Active Galactic Nuclei (AGN) and use them to perform a source stacking analysis. The grouping of AGN into classes is done in two steps: first, AGN classes are defined, then, sources to be stacked are selected assuming that a potential neutrino flux is linearly correlated with the photon luminosity in a certain energy band (radio, IR, optical, keV, GeV, TeV). Lacking any secure detailed knowledge on neutrino production in AGN, this correlation is motivated by hadronic AGN models, as briefly reviewed in this paper. The source stacking search for neutrinos from generic AGN classes is illustrated using the data collected by the AMANDA-II high energy neutrino detector during the year 2000. No significant excess for any of the suggested groups was found., Comment: 43 pages, 12 figures, accepted by Astroparticle Physics

Published
2006

10. Limits to the muon flux from neutralino annihilations in the Sun with the AMANDA detector

Author

K. Rawlins, R. Schwarz, Jodi Cooley, Ignacio Taboada, I. Liubarsky, A. Gross, Othmane Bouhali, Torsten Harenberg, A. C. Pohl, James Madsen, C. H. Wiebusch, T. Becka, P. Ekström, P. Berghaus, Pawel Marciniewski, S. Richter, M. Bartelt, M. Kestel, David A. Schneider, Johan Lundberg, G. C. Hill, Anna Davour, T. DeYoung, Xinhua Bai, K. Kuehn, S. Schlenstedt, Heiko Geenen, O. Tarasova, R. Morse, Karl-Heinz Kampert, C. P. McParland, Matthias Leuthold, D. J. Boersma, H. S. Matis, Glenn Spiczak, Janet Jacobsen, D. R. Nygren, R. Ganugapati, Francis Halzen, H. Leich, R. Porrata, A. Silvestri, K. Hultqvist, D. F. Cowen, D. Hubert, S. Hundertmark, P. Herquet, A. Goldschmidt, Marek Kowalski, P. B. Price, J. K. Becker, Ph. Olbrechts, Hakki Ögelman, L. Köpke, C. De Clercq, D. Steele, K. Hanson, B. Hughey, M. Ribordy, K. Helbing, K. Münich, Jan Conrad, T. Feser, L. Gerhardt, Kurt Woschnagg, K.-H. Becker, P. Steffen, Christian Spiering, S. Robbins, Markus Ackermann, S. W. Barwick, J. Rodríguez Martino, Wolfgang Rhode, P. Miocinovic, T. Hauschildt, S. Böser, Dmitry Chirkin, Joseph T. Hodges, Wolfgang Wagner, M. Hellwig, M. Walter, H. G. Sander, Elisa Bernardini, Y. Minaeva, M. V. D'Agostino, R. Nahnhauer, R. Lang, C. Walck, P. O. Hulth, Yi Wang, B. Collin, Adam Bouchta, C.P. de los Heros, Paolo Desiati, Thomas K. Gaisser, J. Ahrens, J. W. Nam, Allan Hallgren, L. Thollander, H. Wissing, P. Niessen, T. Messarius, C.P. Burgess, D. Hardtke, R. C. Bay, K. H. Sulanke, Elisa Resconi, T. Castermans, S. Tilav, Michael Stamatikos, T. Neunhöffer, Albrecht Karle, T. Burgess, D. Bertrand, R. G. Stokstad, R. Wischnewski, G. Kohnen, Gerald Przybylski, M. Solarz, and Olga Botner

Subjects
Astroparticle physics, Physics, Particle physics, Range (particle radiation), AMANDA, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Dark matter, High Energy Physics::Phenomenology, Astrophysics (astro-ph), Neutralino, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Neutrino telescopes, Nuclear physics, Neutrino detector, Muon flux, High Energy Physics::Experiment
Abstract

A search for an excess of muon-neutrinos from neutralino annihilations in the Sun has been performed with the AMANDA-II neutrino detector using data collected in 143.7 days of live-time in 2001. No excess over the expected atmospheric neutrino background has been observed. An upper limit at 90% confidence level has been obtained on the annihilation rate of captured neutralinos in the Sun, as well as the corresponding muon flux limit at the Earth, both as functions of the neutralino mass in the range 100 GeV-5000 GeV., Comment: 13 pages, 3 figures. Submitted to Astropart. Phys

Published
2006

11. New results from the antarctic muon and neutrino detector array

Author

K. Woschnagg, M. Ackermann, J. Ahrens, H. Albrecht, D.W. Atlee, X. Bai, R. Bay, M. Bartelt, S.W. Barwick, T. Becka, K.-H. Becker, J.K. Becker, E. Bernardini, D. Bertrand, D.J. Boersma, S. Böser, O. Botner, A. Bouchta, O. Bouhali, J. Braun, C. Burgess, T. Burgess, T. Castermans, D. Chirkin, J.A. Coarasa, B. Collin, J. Conrad, J. Cooley, D.F. Cowen, A. Davour, C. De Clercq, T. DeYoung, P. Desiati, P. Ekström, T. Feser, T.K. Gaisser, R. Ganugapati, H. Geenen, L. Gerhardt, A. Goldschmidt, A. Groß, A. Hallgren, F. Halzen, K. Hanson, D. Hardtke, R. Hardtke, T. Harenberg, T. Hauschildt, K. Helbing, M. Hellwig, P. Herquet, G.C. Hill, J. Hodges, D. Hubert, B. Hughey, P.O. Hulth, K. Hultqvist, S. Hundertmark, J. Jacobsen, K.-H. Kampert, A. Karle, J. Kelley, M. Kestel, L. Köpke, M. Kowalski, M. Krasberg, K. Kuehn, H. Leich, M. Leuthold, J. Lundberg, J. Madsen, K. Mandli, P. Marciniewski, H.S. Matis, C.P. McParland, T. Messarius, Y. Minaeva, P. Miočinović, R. Morse, K. Münich, R. Nahnhauer, J.W. Nam, T. Neunhöffer, P. Niessen, D.R. Nygren, H. Ögelman, Ph. Olbrechts, C. Pérez de los Heros, A.C. Pohl, R. Porrata, P.B. Price, G.T. Przybylski, K. Rawlins, E. Resconi, W. Rhode, M. Ribordy, S. Richter, J. Rodríguez Martino, H.-G. Sander, K. Schinarakis, S. Schlenstedt, D. Schneider, R. Schwarz, S.H. Seo, A. Silvestri, M. Solarz, G.M. Spiczak, C. Spiering, M. Stamatikos, D. Steele, P. Steffen, R.G. Stokstad, K.-H. Sulanke, I. Taboada, O. Tarasova, L. Thollander, S. Tilav, J. Vandenbroucke, L.C. Voicu, W. Wagner, C. Walck, M. Walter, Y.R. Wang, C.H. Wiebusch, R. Wischnewski, H. Wissing, and G. Yodh

Subjects
Antarctic Muon And Neutrino Detector Array, Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), High Energy Physics::Phenomenology, FOS: Physical sciences, Astrophysics, Atomic and Molecular Physics, and Optics, Nuclear physics, Supernova, Neutralino, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Gamma-ray burst
Abstract

We present recent results from the Antarctic Muon And Neutrino Detector Array (AMANDA) on searches for high-energy neutrinos of extraterrestrial origin. We have searched for a diffuse flux of neutrinos, neutrino point sources and neutrinos from GRBs and from WIMP annihilations in the Sun or the center of the Earth. We also present a preliminary result on the first energy spectrum above a few TeV for atmospheric neutrinos., 8 pages, 8 figures, to be published in Nuclear Physics B (Proceedings Supplement): Proceedings of the XXIst International Conference on Neutrino Physics and Astrophysics, Paris, June 14-19, 2004

Published
2005

12. Search for Extraterrestrial Point Sources of Neutrinos with AMANDA-II

Author

K. Rawlins, James Madsen, H. Leich, David A. Schneider, D. J. Boersma, G. C. Hill, Heiko Geenen, J. P Dewulf, Olga Botner, Othmane Bouhali, Y. Minaeva, J.K. Becker, Glenn Spiczak, P. Miocinovic, Philip Olbrechts, T. Messarius, Christopher Wiebusch, Hakki Ögelman, Matthias Leuthold, D. R. Nygren, C. Walck, R. Ganugapati, P. Steffen, Thomas K. Gaisser, G. B. Yodh, B. Hughey, Jan Conrad, T. Feser, M. Ribordy, D. F. Cowen, I. Liubarsky, Marek Kowalski, Xinhua Bai, Gerald Przybylski, K. H. Sulanke, P. B. Price, T. O. B. Schmidt, Kurt Woschnagg, T. Hauschildt, K. Munich, I. Taboada, Dmitry Chirkin, A. Groß, C. P. McParland, Adam Bouchta, Allan Hallgren, S. Hundertmark, L. Gerhardt, A. Goldschmidt, D. Bertrand, A. Chen, R. Hardtke, C. Pérez de los Heros, T. Becka, Wolfgang Rhode, Elisa Resconi, Torsten Harenberg, Julie Lamoureux, D. Steele, P. Niessen, Wolfgang Wagner, D. Hubert, L. Köpke, Yajun Wang, S. Schlenstedt, Freddy Binon, T. Burgess, A. C. Pohl, C. Wiedemann, Pawel Marciniewski, Ph. Herquet, Kael Hanson, Paolo Desiati, R. Nahnhauer, P. Ekström, T. Neunhöffer, M. Kestel, T. DeYoung, M. Hellwig, Staffan Carius, H. G. Sander, Albrecht Karle, Anna Davour, R. Porrata, B. Collin, Janet Jacobsen, P. O. Hulth, S. Böser, H. Wissing, S. Tilav, R. Schwarz, Kyle T. Mandli, R. Morse, A. Silvestri, H. S. Matis, Michael Stamatikos, A. Biron, L. Thollander, Francis Halzen, K. Helbing, J. Rodríguez Martino, Jodi Cooley, K. Hultqvist, S. Richter, R. G. Stokstad, J. Ahrens, R. Wischnewski, P. Lindahl, Christian Spiering, K. Kuehn, K. Schinarakis, T. Castermans, C. De Clercq, S. W. Barwick, M. Gaug, Elisa Bernardini, and M. Solarz

Subjects
AMANDA, cosmic radiation [neutrino], Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, particle source [cosmic radiation], General Physics and Astronomy, FOS: Physical sciences, Astrophysics, magnetic [matter], numerical methods, ddc:550, quasar, Blazar, Astroparticle physics, Physics, photomultiplier, cosmic radiation [muon], water [Cherenkov counter], Astrophysics (astro-ph), Astronomy, Solar neutrino problem, Cosmic neutrino background, Neutrino detector, Measurements of neutrino speed, High Energy Physics::Experiment, flux [cosmic radiation], blazar [AGN], data management, Neutrino, upper limit, experimental results
Abstract

We present the results of a search for point sources of high energy neutrinos in the northern hemisphere using AMANDA-II data collected in the year 2000. Included are flux limits on several AGN blazars, microquasars, magnetars and other candidate neutrino sources. A search for excesses above a random background of cosmic-ray-induced atmospheric neutrinos and misreconstructed downgoing cosmic-ray muons reveals no statistically significant neutrino point sources. We show that AMANDA-II has achieved the sensitivity required to probe known TeV gamma-ray sources such as the blazar Markarian 501 in its 1997 flaring state at a level where neutrino and gamma-ray fluxes are equal., Comment: 5 pages, 5 figures, 1 table, submitted to PRL

Published
2004
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13. Search for Neutrino-Induced Cascades with AMANDA

Author

Christian Spiering, D. J. Boersma, I. Liubarsky, A. Groß, Wolfgang Rhode, T. Hauschildt, M. Solarz, Jodi Cooley, R. Ganugapati, T. Burgess, C. H. Wiebusch, K. Rawlins, P. Ekström, Karl-Heinz Kampert, D. F. Cowen, Marek Kowalski, Adam Bouchta, D. Bertrand, P. B. Price, C.P. Burgess, M. Walter, D. Hubert, T. Neunhöffer, Kael Hanson, Othmane Bouhali, T. O. B. Schmidt, J. L. Kelley, Allan Hallgren, L. Köpke, M. Kestel, Albrecht Karle, Wolfgang Wagner, S. Hundertmark, Kurt Woschnagg, J. W. Nam, L. Thollander, S. Böser, T. DeYoung, R. Morse, James Madsen, Torsten Harenberg, Dmitry Chirkin, S. Richter, J. Hodges, K. H. Sulanke, K. Hultqvist, James E. Braun, R. Nahnhauer, A. Silvestri, J.K. Becker, P. O. Hulth, H. S. Matis, David A. Schneider, R. Porrata, Gerald Przybylski, M. Ribordy, K. Helbing, R. C. Bay, Francis Halzen, G. C. Hill, Matthias Leuthold, D. R. Nygren, H. Wissing, J. Rodríguez Martino, Glenn Spiczak, P. Herquet, Paolo Desiati, L. Gerhardt, A. C. Pohl, Heiko Geenen, Hakki Ögelman, P. Steffen, B. Hughey, J. Ahrens, Pawel Marciniewski, Olga Botner, Ph. Olbrechts, Elisa Resconi, Kyle T. Mandli, T. Messarius, Jan Conrad, T. Feser, Anna Davour, M. Hellwig, H. G. Sander, M. Krasberg, R. Schwarz, Janet Jacobsen, P. Miocinovic, Y. Minaeva, K. Kuehn, B. Collin, K. Schinarakis, M. Bartelt, H. Leich, Xinhua Bai, Yajun Wang, K. Munich, S. Schlenstedt, C. De Clercq, S. Tilav, Markus Ackermann, S. W. Barwick, R. Hardtke, R. G. Stokstad, R. Wischnewski, P. Niessen, K.-H. Becker, C. Walck, I. Taboada, Thomas K. Gaisser, G. B. Yodh, T. Castermans, C. Pérez de los Heros, T. Becka, Michael Stamatikos, H. Albrecht, D. Steele, Elisa Bernardini, C. P. McParland, and A. Goldschmidt

Subjects
Physics, AMANDA, Particle physics, Muon, Physics::Instrumentation and Detectors, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, Hadron, High Energy Physics::Phenomenology, Astrophysics (astro-ph), Flux, FOS: Physical sciences, Astronomy and Astrophysics, Electron, Astrophysics, Neutrino astronomy, Neutrino telescopes, High Energy Physics::Experiment, Neutrino, Event (particle physics)
Abstract

We report on a search for electro-magnetic and/or hadronic showers (cascades) induced by high energy neutrinos in the data collected with the AMANDA II detector during the year 2000. The observed event rates are consistent with the expectations for atmospheric neutrinos and muons. We place upper limits on a diffuse flux of extraterrestrial electron, tau and muon neutrinos. A flux of neutrinos with a spectrum $\Phi \propto E^{-2}$ which consists of an equal mix of all flavors, is limited to $E^2 \Phi(E)=8.6 x 10^{-7} GeV/(cm^{2} s sr)$ at a 90% confidence level for a neutrino energy range 50 TeV to 5 PeV. We present bounds for specific extraterrestrial neutrino flux predictions. Several of these models are ruled out., Comment: 18 pages, 12 figures

Published
2004
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14. Sensitivity of the IceCube detector to astrophysical sources of high energy muon neutrinos

Author

George Japaridze, I. Taboada, P. Miocinovic, M. Hellwig, R Koch, R. M. Gunasingha, H. G. Sander, R. Paulos, R. C. Bay, Michael Stamatikos, R. Ganugapati, T. Neunhöffer, Albrecht Karle, B. Collin, D. F. Cowen, Marek Kowalski, Christian Spiering, J. A. Goodman, K. Rawlins, K. Schinarakis, C. Pérez de los Heros, T. Becka, P. Niessen, P. B. Price, T. O. B. Schmidt, I. Liubarsky, James Madsen, Soebur Razzaque, K. Helbing, T. Castermans, Jodi Cooley, A. Biron, Elisa Resconi, N. Kitamura, D. Hubert, Kurt Woschnagg, Peter Mészáros, Paul Evenson, S. Schlenstedt, M. Kestel, R. G. Stokstad, C. H. Wiebusch, S. Hundertmark, S. Tilav, K. H. Sulanke, C. De Clercq, R. Wischnewski, A. J. Smith, Dmitry Chirkin, C. Wiedemann, T. DeYoung, Jean Gallagher, J. I. Lamoureux, G. W. Sullivan, A. C. Pohl, S. Richter, Xinhua Bai, Ph. Herquet, L. Köpke, T. Burgess, D. Z. Besson, R. Morse, R. Schwarz, E. Blaufuss, D. J. Boersma, J. Ahrens, D. Bertrand, K.-H. Becker, D. Steele, K. Hultqvist, J. Cavin, R. H. Minor, Kael Hanson, William Carithers, T. J. Sumner, H. S. Matis, Elisa Bernardini, S. Patton, Ph. Olbrechts, T. Stezelberger, Paolo Desiati, Francis Halzen, R. W. Ellsworth, Wolfgang Rhode, Hakki Ögelman, H. Kawai, H. Leich, S. Böser, C. P. McParland, Olga Botner, R. Hardtke, M. Solarz, A. Goldschmidt, R. Nahnhauer, M. Ribordy, T. Messarius, S. Yoshida, D. Hays, W. Chinowsky, N. van Eijndhoven, Glenn Spiczak, B. Hughey, Gerald Przybylski, R. Ehrlich, T. Hauschildt, Adam Bouchta, R.-R Wang, Allan Hallgren, Wolfgang Wagner, P. O. Hulth, H. Wissing, D. Seckel, Anna Davour, Janet Jacobsen, Todor Stanev, H. Miyamoto, C. Walck, Thomas K. Gaisser, J. Pretz, Y. Minaeva, A. W. Jones, John N. Bahcall, Matthias Leuthold, Othmane Bouhali, D. R. Nygren, P. Steffen, Jan Conrad, T. Feser, Christian Bohm, David A. Schneider, D. Berley, G. C. Hill, Heiko Geenen, and A. R. Fazely

Subjects
Physics, Active galactic nucleus, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics (astro-ph), Gamma ray, FOS: Physical sciences, IceCube, Neutrino astronomy, Neutrino telescope, Astronomy and Astrophysics, Cosmic ray, Astrophysics, High Energy Physics::Experiment, Neutrino, Gamma-ray burst
Abstract

We present the results of a Monte-Carlo study of the sensitivity of the planned IceCube detector to predicted fluxes of muon neutrinos at TeV to PeV energies. A complete simulation of the detector and data analysis is used to study the detector's capability to search for muon neutrinos from sources such as active galaxies and gamma-ray bursts. We study the effective area and the angular resolution of the detector as a function of muon energy and angle of incidence. We present detailed calculations of the sensitivity of the detector to both diffuse and pointlike neutrino emissions, including an assessment of the sensitivity to neutrinos detected in coincidence with gamma-ray burst observations. After three years of datataking, IceCube will have been able to detect a point source flux of E^2*dN/dE = 7*10^-9 cm^-2s^-1GeV at a 5-sigma significance, or, in the absence of a signal, place a 90% c.l. limit at a level E^2*dN/dE = 2*10^-9 cm^-2s^-1GeV. A diffuse E-2 flux would be detectable at a minimum strength of E^2*dN/dE = 1*10^-8 cm^-2s^-1sr^-1GeV. A gamma-ray burst model following the formulation of Waxman and Bahcall would result in a 5-sigma effect after the observation of 200 bursts in coincidence with satellite observations of the gamma-rays., Comment: 33 pages, 13 figures, 6 tables

Published
2004

15. Limits on diffuse fluxes of high energy extraterrestrial neutrinos with the AMANDA-B10 detector

Author

P. Doksus, T. Hauschildt, Adam Bouchta, M. Solarz, K. H. Sulanke, Allan Hallgren, K. Hultqvist, A. Silvestri, P. Niessen, H. Leich, Jodi Cooley, R. Porrata, P. Romenesko, K.-H. Becker, Elisa Resconi, K. Rawlins, S. Young, M. Gaug, P. B. Price, Olga Botner, S. Richter, James Madsen, P. Lindahl, Matthias Leuthold, D. R. Nygren, T. O. B. Schmidt, Christian Spiering, Kyle T. Mandli, J. Rodríguez Martino, P. Ekström, T. Neunhöffer, P. Steffen, S. Boeser, M. Ribordy, H. S. Matis, Yajun Wang, S. Schlenstedt, Kurt Woschnagg, Jan Conrad, T. Feser, Elisa Bernardini, J. Ahrens, C. Wiedemann, I. Liubarsky, James Kim, P. Miocinovic, Francis Halzen, Albrecht Karle, S. Hundertmark, T. DeYoung, Ph. Herquet, L. Köpke, M. Hellwig, A. C. Pohl, A. Biron, Kael Hanson, Y. Minaeva, H. G. Sander, Michael Stamatikos, C. P. McParland, R. Hardtke, Paolo Desiati, Pawel Marciniewski, Xinhua Bai, Staffan Carius, Gerald Przybylski, C. Pérez de los Heros, T. Becka, Dmitry Chirkin, A. Goldschmidt, R. Schwarz, T. C. Miller, K. Kuehn, K. Schinarakis, David A. Schneider, C. H. Wiebusch, J. E. Jacobsen, Hakki Ögelman, G. C. Hill, T. Castermans, R. Wischnewski, D. Steele, T. Burgess, R. G. Stokstad, Ph. Olbrechts, L. Gerhardt, Anna Davour, S. Tilav, Heiko Geenen, D. Bertrand, I. Taboada, P. C. Mock, R. Morse, C. De Clercq, D. Ross, Othmane Bouhali, R. Ganugapati, Glenn Spiczak, D. F. Cowen, B. Hughey, Julie Lamoureux, S. W. Barwick, Marek Kowalski, R. C. Bay, W. Wu, Wolfgang Rhode, C. Walck, Wolfgang Wagner, Thomas K. Gaisser, G. B. Yodh, P. O. Hulth, H. Wissing, and T. Messarius

Subjects
Physics, Physics::Instrumentation and Detectors, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), High Energy Physics::Phenomenology, FOS: Physical sciences, General Physics and Astronomy, Quasar, Cosmic ray, Astrophysics, Universe, Massless particle, Physics::Popular Physics, Extraterrestrial life, High Energy Physics::Experiment, Neutrino, Neutrino oscillation, Lepton, media_common
Abstract

Data from the AMANDA-B10 detector taken during the austral winter of 1997 have been searched for a diffuse flux of high energy extraterrestrial muon-neutrinos, as predicted from, e.g., the sum of all active galaxies in the universe. This search yielded no excess events above those expected from the background atmospheric neutrinos, leading to upper limits on the extraterrestrial neutrino flux. For an assumed E^-2 spectrum, a 90% classical confidence level upper limit has been placed at a level E^2 Phi(E) = 8.4 x 10^-7 GeV cm^-2 s^-1 sr^-1 (for a predominant neutrino energy range 6-1000 TeV) which is the most restrictive bound placed by any neutrino detector. When specific predicted spectral forms are considered, it is found that some are excluded., Submitted to Physical Review Letters

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