1
|
Hallen P, Schug D, Schulz V. Comments on the NEMA NU 4-2008 Standard on Performance Measurement of Small Animal Positron Emission Tomographs. EJNMMI Phys 2020; 7:12. [PMID: 32095909 PMCID: PMC7040118 DOI: 10.1186/s40658-020-0279-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 02/04/2020] [Indexed: 11/12/2022] Open
Abstract
The National Electrical Manufacturers Association’s (NEMA) NU 4-2008 standard specifies methodology for evaluating the performance of small-animal PET scanners. The standard’s goal is to enable comparison of different PET scanners over a wide range of technologies and geometries used. In this work, we discuss if the NEMA standard meets these goals and we point out potential flaws and improvements to the standard.For the evaluation of spatial resolution, the NEMA standard mandates the use of filtered backprojection reconstruction. This reconstruction method can introduce star-like artifacts for detectors with an anisotropic spatial resolution, usually caused by parallax error. These artifacts can then cause a strong dependence of the resulting spatial resolution on the size of the projection window in image space, whose size is not fully specified in the NEMA standard. If the PET ring has detectors which are perpendicular to a Cartesian axis, then the resolution along this axis will typically improve with larger projection windows.We show that the standard’s equations for the estimation of the random rate for PET systems with intrinsic radioactivity are circular and not satisfiable. However, a modified version can still be used to determine an approximation of the random rates under the assumption of negligible random rates for small activities and a constant scatter fraction. We compare the resulting estimated random rates to random rates obtained using a delayed coincidence window and two methods based on the singles rates. While these methods give similar estimates, the estimation method based on the NEMA equations overestimates the random rates.In the NEMA standard’s protocol for the evaluation of the sensitivity, the standard specifies to axially step a point source through the scanner and to take a different scan for each source position. Later, in the data analysis section, the standard does not specify clearly how the different scans have to be incorporated into the analysis, which can lead to unclear interpretations of publicized results.The standard’s definition of the recovery coefficients in the image quality phantom includes the maximum activity in a region of interest, which causes a positive correlation of noise and recovery coefficients. This leads to an unintended trade-off between desired uniformity, which is negatively correlated with variance (i.e., noise), and recovery.With this work, we want to start a discussion on possible improvements in a next version of the NEMA NU-4 standard.
Collapse
Affiliation(s)
- Patrick Hallen
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Pauwelstraße 19, Aachen, 52074, Germany.
| | - David Schug
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Pauwelstraße 19, Aachen, 52074, Germany.,Hyperion Hybrid Imaging Systems GmbH, Pauwelstraße 19, Aachen, 52074, Germany
| | - Volkmar Schulz
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Pauwelstraße 19, Aachen, 52074, Germany.,Hyperion Hybrid Imaging Systems GmbH, Pauwelstraße 19, Aachen, 52074, Germany.,III. Physikalisches Institut B, RWTH Aachen University, Otto-Blumenthal-Straße, Aachen, 52074, Germany.,Fraunhofer Institute for Digital Medicine MEVIS, Forckenbeckstrasse 55, Aachen, 52074, Germany
| |
Collapse
|
2
|
Muller F, Schug D, Hallen P, Grahe J, Schulz V. A Novel DOI Positioning Algorithm for Monolithic Scintillator Crystals in PET Based on Gradient Tree Boosting. IEEE Trans Radiat Plasma Med Sci 2019. [DOI: 10.1109/trpms.2018.2884320] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
3
|
Hallen P, Schug D, Weissler B, Gebhardt P, Salomon A, Kiessling F, Schulz V. PET performance evaluation of the small-animal Hyperion II D PET/MRI insert based on the NEMA NU-4 standard. Biomed Phys Eng Express 2018; 4:065027. [PMID: 30675384 PMCID: PMC6329443 DOI: 10.1088/2057-1976/aae6c2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/03/2018] [Accepted: 10/08/2018] [Indexed: 12/23/2022]
Abstract
The Hyperion IID PET insert is the first scanner using fully digital silicon photomultipliers for simultaneous PET/MR imaging of small animals up to rabbit size. In this work, we evaluate the PET performance based on the National Eletrical Manufacturers Association (NEMA) NU 4-2008 standard, whose standardized measurement protocols allow comparison of different small-animal PET scanners. The Hyperion IID small-animal PET/MR insert comprises three rings of 20 detector stacks with pixelated scintillator arrays with a crystal pitch of 1 mm, read out with digital silicon photomultipliers. The scanner has a large ring diameter of 209.6 mm and an axial field of view of 96.7 mm. We evaluated the spatial resolution, energy resolution, time resolution and sensitivity by scanning a 22Na point source. The count rates and scatter fractions were measured for a wide range of 18F activity inside a mouse-sized scatter phantom. We evaluated the image quality using the mouse-sized image quality phantom specified in the NEMA NU4 standard, filled with 18F. Additionally, we verified the in-vivo imaging capabilities by performing a simultaneous PET/MRI scan of a mouse injected with 18F-FDG. We processed all measurement data with an energy window of 250 keV to 625 keV and a coincidence time window of 2 ns. The filtered-backprojection reconstruction of the point source has a full width at half maximum (FWHM) of 1.7 mm near the isocenter and degrades to 2.5 mm at a radial distance of 50 mm. The scanner's average energy resolution is 12.7% (ΔE/E FWHM) and the coincidence resolution time is 609 ps. The peak absolute sensitivity is 4.0% and the true and noise-equivalent count rates reach their peak at an activity of 46 MBq with 483 kcps and 407 kcps, respectively, with a scatter fraction of 13%. The iterative reconstruction of the image quality phantom has a uniformity of 3.7%, and recovery coefficients from 0.29, 0.91 and 0.94 for rod diameters of 1 mm, 3 mm and 5 mm, respectively. After application of scatter and attenuation corrections, the air- and water-filled cold regions have spill-over ratios of 6.3% and 5.4%, respectively. The Hyperion IID PET/MR insert provides state-of-the-art PET performance while enabling simultaneous PET/MRI acquisition of small animals up to rabbit size.
Collapse
Affiliation(s)
- Patrick Hallen
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany.,
| | - David Schug
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany
| | - Bjoern Weissler
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany
| | - Pierre Gebhardt
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany
| | - André Salomon
- Department of Oncology Solutions, Philips Research, Eindhoven, Netherlands
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany
| | - Volkmar Schulz
- Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany.,Department of Oncology Solutions, Philips Research, Eindhoven, Netherlands
| |
Collapse
|
4
|
Muller F, Schug D, Hallen P, Grahe J, Schulz V. Gradient Tree Boosting-Based Positioning Method for Monolithic Scintillator Crystals in Positron Emission Tomography. IEEE Trans Radiat Plasma Med Sci 2018. [DOI: 10.1109/trpms.2018.2837738] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
5
|
Hürtgen G, Von Werder S, Berneking V, Gester K, Winz O, Hallen P, Büther F, Schubert C, Escobar-Corral N, Hatakeyama Zeidler J, Arenbeck H, Disselhorst-Klug C, Stahl A, Eble M. EP-1619: Determination of Lung Tumour Motion from PET Raw Data used for Accelerometer Based Motion Prediction. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32054-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
|
7
|
Gross-Weege N, Schug D, Hallen P, Schulz V. Maximum likelihood positioning algorithm for high-resolution PET scanners. Med Phys 2016; 43:3049-3061. [DOI: 10.1118/1.4950719] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
8
|
Schug D, Lerche C, Weissler B, Gebhardt P, Goldschmidt B, Wehner J, Dueppenbecker PM, Salomon A, Hallen P, Kiessling F, Schulz V. Initial PET performance evaluation of a preclinical insert for PET/MRI with digital SiPM technology. Phys Med Biol 2016; 61:2851-78. [PMID: 26987774 PMCID: PMC5362057 DOI: 10.1088/0031-9155/61/7/2851] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Hyperion-II(D) is a positron emission tomography (PET) insert which allows simultaneous operation in a clinical magnetic resonance imaging (MRI) scanner. To read out the scintillation light of the employed lutetium yttrium orthosilicate crystal arrays with a pitch of 1 mm and 12 mm in height, digital silicon photomultipliers (DPC 3200-22, Philips Digital Photon Counting) (DPC) are used. The basic PET performance in terms of energy resolution, coincidence resolution time (CRT) and sensitivity as a function of the operating parameters, such as the operating temperature, the applied overvoltage, activity and configuration parameters of the DPCs, has been evaluated at system level. The measured energy resolution did not show a large dependency on the selected parameters and is in the range of 12.4%-12.9% for low activity, degrading to ∼13.6% at an activity of ∼100 MBq. The CRT strongly depends on the selected trigger scheme (trig) of the DPCs, and we measured approximately 260 ps, 440 ps, 550 ps and 1300 ps for trig 1-4, respectively. The trues sensitivity for a NEMA NU 4 mouse-sized scatter phantom with a 70 mm long tube of activity was dependent on the operating parameters and was determined to be 0.4%-1.4% at low activity. The random fraction stayed below 5% at activity up to 100 MBq and the scatter fraction was evaluated as ∼6% for an energy window of 411 keV-561 keV and ∼16% for 250 keV-625 keV. Furthermore, we performed imaging experiments using a mouse-sized hot-rod phantom and a large rabbit-sized phantom. In 2D slices of the reconstructed mouse-sized hot-rod phantom (∅ = 28 mm), the rods were distinguishable from each other down to a rod size of 0.8 mm. There was no benefit from the better CRT of trig 1 over trig 3, where in the larger rabbit-sized phantom (∅ = 114 mm) we were able to show a clear improvement in image quality using the time-of-flight information. The findings will allow system architects-aiming at a similar detector design using DPCs-to make predictions about the design requirements and the performance that can be expected.
Collapse
Affiliation(s)
- David Schug
- Physics of Molecular Imaging Systems, Experimental Molecular Imaging, RWTH Aachen University, 52062 Aachen, Germany
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Hallen P, Schug D, Wehner J, Weissler B, Gebhardt P, Goldschmidt B, Salomon A, Duppenbecker P, Kiessling F, Schultz V. Evaluation of PET performance and MR compatibility of a preclinical PET/MR insert with digital silicon photomultiplier technology. EJNMMI Phys 2016; 2:A55. [PMID: 26956314 PMCID: PMC4798633 DOI: 10.1186/2197-7364-2-s1-a55] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Patrick Hallen
- Department of Physics of Molecular Imaging Systems, RWTH Aachen University, Germany
| | - David Schug
- Department of Physics of Molecular Imaging Systems, RWTH Aachen University, Germany
| | - Jakob Wehner
- Department of Physics of Molecular Imaging Systems, RWTH Aachen University, Germany
| | - Bjorn Weissler
- Department of Chemical Application Research, Philips Research, Germany
| | - Pierre Gebhardt
- Division of Imaging Sciences and Biomedical Engineering, King's College London, UK
| | - Benjamin Goldschmidt
- Department of Physics of Molecular Imaging Systems, RWTH Aachen University, Germany
| | - Andre Salomon
- Department of Oncology Solutions, Philips Research, Germany
| | - Peter Duppenbecker
- Department of Physics of Molecular Imaging Systems, RWTH Aachen University, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University, Germany
| | - Volkmar Schultz
- Department of Physics of Molecular Imaging Systems, RWTH Aachen University, Germany
| |
Collapse
|
10
|
Ritzer C, Hallen P, Schug D, Schulz V. Measurement of the point spread function of a pixelated detector array. EJNMMI Phys 2015; 2:A10. [PMID: 26956265 PMCID: PMC4798630 DOI: 10.1186/2197-7364-2-s1-a10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
11
|
Aartsen MG, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Altmann D, Anderson T, Arguelles C, Arlen TC, Auffenberg J, Bai X, Barwick SW, Baum V, Bay R, Beatty JJ, Becker Tjus J, Becker KH, BenZvi S, Berghaus P, Berley D, Bernardini E, Bernhard A, Besson DZ, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohm C, Bos F, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown AM, Buzinsky N, Casey J, Casier M, Cheung E, Chirkin D, Christov A, Christy B, Clark K, Classen L, Clevermann F, Coenders S, Cowen DF, Cruz Silva AH, Daughhetee J, Davis JC, Day M, de André JPAM, De Clercq C, Dembinski H, De Ridder S, Desiati P, de Vries KD, de With M, DeYoung T, Díaz-Vélez JC, Dumm JP, Dunkman M, Eagan R, Eberhardt B, Ehrhardt T, Eichmann B, Eisch J, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feintzeig J, Felde J, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Frantzen K, Fuchs T, Gaisser TK, Gaior R, Gallagher J, Gerhardt L, Gier D, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Goodman JA, Góra D, Grant D, Gretskov P, Groh JC, Groß A, Ha C, Haack C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Hebecker D, Heereman D, Heinen D, Helbing K, Hellauer R, Hellwig D, Hickford S, Hill GC, Hoffman KD, Hoffmann R, Homeier A, Hoshina K, Huang F, Huelsnitz W, Hulth PO, Hultqvist K, Ishihara A, Jacobi E, Jacobsen J, Japaridze GS, Jero K, Jurkovic M, Kaminsky B, Kappes A, Karg T, Karle A, Kauer M, Keivani A, Kelley JL, Kheirandish A, Kiryluk J, Kläs J, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Koob A, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Kriesten A, Krings K, Kroll G, Kroll M, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Lanfranchi JL, Larsen DT, Larson MJ, Lesiak-Bzdak M, Leuermann M, Lünemann J, Madsen J, Maggi G, Maruyama R, Mase K, Matis HS, Maunu R, McNally F, Meagher K, Medici M, Meli A, Meures T, Miarecki S, Middell E, Middlemas E, Milke N, Miller J, Mohrmann L, Montaruli T, Morse R, Nahnhauer R, Naumann U, Niederhausen H, Nowicki SC, Nygren DR, Obertacke A, Olivas A, Omairat A, O'Murchadha A, Palczewski T, Paul L, Penek Ö, Pepper JA, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Posselt J, Price PB, Przybylski GT, Pütz J, Quinnan M, Rädel L, Rameez M, Rawlins K, Redl P, Rees I, Reimann R, Relich M, Resconi E, Rhode W, Richman M, Riedel B, Robertson S, Rodrigues JP, Rongen M, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba SM, Sander HG, Sandroos J, Santander M, Sarkar S, Schatto K, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Shanidze R, Smith MWE, Soldin D, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stanisha NA, Stasik A, Stezelberger T, Stokstad RG, Stößl A, Strahler EA, Ström R, Strotjohann NL, Sullivan GW, Taavola H, Taboada I, Tamburro A, Ter-Antonyan S, Terliuk A, Tešić G, Tilav S, Toale PA, Tobin MN, Tosi D, Tselengidou M, Unger E, Usner M, Vallecorsa S, van Eijndhoven N, Vandenbroucke J, van Santen J, Vanheule S, Vehring M, Voge M, Vraeghe M, Walck C, Wallraff M, Weaver C, Wellons M, Wendt C, Westerhoff S, Whelan BJ, Whitehorn N, Wichary C, Wiebe K, Wiebusch CH, Williams DR, Wissing H, Wolf M, Wood TR, Woschnagg K, Xu DL, Xu XW, Xu Y, Yanez JP, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zoll M. Flavor Ratio of Astrophysical Neutrinos above 35 TeV in IceCube. Phys Rev Lett 2015; 114:171102. [PMID: 25978221 DOI: 10.1103/physrevlett.114.171102] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Indexed: 06/04/2023]
Abstract
A diffuse flux of astrophysical neutrinos above 100 TeV has been observed at the IceCube Neutrino Observatory. Here we extend this analysis to probe the astrophysical flux down to 35 TeV and analyze its flavor composition by classifying events as showers or tracks. Taking advantage of lower atmospheric backgrounds for showerlike events, we obtain a shower-biased sample containing 129 showers and 8 tracks collected in three years from 2010 to 2013. We demonstrate consistency with the (fe:fμ:fτ)⊕≈(1:1:1)⊕ flavor ratio at Earth commonly expected from the averaged oscillations of neutrinos produced by pion decay in distant astrophysical sources. Limits are placed on nonstandard flavor compositions that cannot be produced by averaged neutrino oscillations but could arise in exotic physics scenarios. A maximally tracklike composition of (0:1:0)⊕ is excluded at 3.3σ, and a purely showerlike composition of (1:0:0)⊕ is excluded at 2.3σ.
Collapse
Affiliation(s)
- M G Aartsen
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia 5005, Australia
| | | | - J Adams
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - J A Aguilar
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - M Ahlers
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Ahrens
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - D Altmann
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - T Anderson
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - C Arguelles
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T C Arlen
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J Auffenberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - X Bai
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - S W Barwick
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - V Baum
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - R Bay
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - J J Beatty
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
| | - J Becker Tjus
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - K-H Becker
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S BenZvi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - D Berley
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | | | - A Bernhard
- Technische Universität München, D-85748 Garching, Germany
| | - D Z Besson
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA
| | - G Binder
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Bindig
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - M Bissok
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E Blaufuss
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - J Blumenthal
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D J Boersma
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - C Bohm
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - F Bos
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - D Bose
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - S Böser
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - O Botner
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - L Brayeur
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | | | - A M Brown
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - N Buzinsky
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - J Casey
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - M Casier
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - E Cheung
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - D Chirkin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Christov
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - B Christy
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - K Clark
- Department of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7
| | - L Classen
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - F Clevermann
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Coenders
- Technische Universität München, D-85748 Garching, Germany
| | - D F Cowen
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | | | - J Daughhetee
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - J C Davis
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - M Day
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J P A M de André
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - C De Clercq
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - H Dembinski
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S De Ridder
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - P Desiati
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K D de Vries
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - M de With
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - T DeYoung
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J C Díaz-Vélez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J P Dumm
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Dunkman
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - R Eagan
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - B Eberhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Ehrhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - B Eichmann
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Eisch
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Euler
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - P A Evenson
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - O Fadiran
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A R Fazely
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - A Fedynitch
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Feintzeig
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Felde
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - K Filimonov
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - C Finley
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - T Fischer-Wasels
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S Flis
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - K Frantzen
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Fuchs
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T K Gaisser
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - R Gaior
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - J Gallagher
- Department of Astronomy, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - L Gerhardt
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Gier
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Gladstone
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - A Goldschmidt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - G Golup
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - J G Gonzalez
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - J A Goodman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - D Góra
- DESY, D-15735 Zeuthen, Germany
| | - D Grant
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - P Gretskov
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J C Groh
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Groß
- Technische Universität München, D-85748 Garching, Germany
| | - C Ha
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Haack
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Haj Ismail
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - P Hallen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Hallgren
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - F Halzen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Hanson
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - D Hebecker
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - D Heereman
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - D Heinen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Helbing
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - R Hellauer
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - D Hellwig
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Hickford
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - G C Hill
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia 5005, Australia
| | - K D Hoffman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - R Hoffmann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - A Homeier
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - K Hoshina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - F Huang
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - W Huelsnitz
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - P O Hulth
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - K Hultqvist
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - A Ishihara
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | | | - J Jacobsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - G S Japaridze
- CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
| | - K Jero
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Jurkovic
- Technische Universität München, D-85748 Garching, Germany
| | | | - A Kappes
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - T Karg
- DESY, D-15735 Zeuthen, Germany
| | - A Karle
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
- Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A Keivani
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J L Kelley
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Kheirandish
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - J Kläs
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S R Klein
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J-H Köhne
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - G Kohnen
- Université de Mons, 7000 Mons, Belgium
| | - H Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - A Koob
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Köpke
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Kopper
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - S Kopper
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - D J Koskinen
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Kowalski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
- DESY, D-15735 Zeuthen, Germany
| | - A Kriesten
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Krings
- Technische Universität München, D-85748 Garching, Germany
| | - G Kroll
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - M Kroll
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Kunnen
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - N Kurahashi
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - T Kuwabara
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - M Labare
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - J L Lanfranchi
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - D T Larsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M J Larson
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Lesiak-Bzdak
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - M Leuermann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J Lünemann
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - J Madsen
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - G Maggi
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - R Maruyama
- Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - K Mase
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - H S Matis
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R Maunu
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - F McNally
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Meagher
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - M Medici
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - A Meli
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - T Meures
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - S Miarecki
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | - E Middlemas
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - N Milke
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - J Miller
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | | | - T Montaruli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - R Morse
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - U Naumann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - H Niederhausen
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - S C Nowicki
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - D R Nygren
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Obertacke
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - A Olivas
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Omairat
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - A O'Murchadha
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - T Palczewski
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - L Paul
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - Ö Penek
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J A Pepper
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - C Pérez de los Heros
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - C Pfendner
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - D Pieloth
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - E Pinat
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - J Posselt
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - P B Price
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - G T Przybylski
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Pütz
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Quinnan
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - L Rädel
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Rameez
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - K Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, Alaska 99508, USA
| | - P Redl
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - I Rees
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - R Reimann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Relich
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - E Resconi
- Technische Universität München, D-85748 Garching, Germany
| | - W Rhode
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Richman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - B Riedel
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - S Robertson
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia 5005, Australia
| | - J P Rodrigues
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Rongen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - T Ruhe
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - B Ruzybayev
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D Ryckbosch
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - S M Saba
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - H-G Sander
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - J Sandroos
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Santander
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Sarkar
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
- Department of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom
| | - K Schatto
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - F Scheriau
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Schmidt
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - M Schmitz
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Schoenen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Schöneberg
- Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | | | - A Schukraft
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Schulte
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - O Schulz
- Technische Universität München, D-85748 Garching, Germany
| | - D Seckel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - Y Sestayo
- Technische Universität München, D-85748 Garching, Germany
| | - S Seunarine
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | | | - M W E Smith
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - D Soldin
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - G M Spiczak
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | | | - M Stamatikos
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - T Stanev
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - N A Stanisha
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | | | - T Stezelberger
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R G Stokstad
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Stößl
- DESY, D-15735 Zeuthen, Germany
| | - E A Strahler
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - R Ström
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | | | - G W Sullivan
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - H Taavola
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - I Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - A Tamburro
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Ter-Antonyan
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | | | - G Tešić
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - S Tilav
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - P A Toale
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - M N Tobin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - D Tosi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Tselengidou
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - E Unger
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - M Usner
- DESY, D-15735 Zeuthen, Germany
| | - S Vallecorsa
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - N van Eijndhoven
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - J Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J van Santen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Vanheule
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - M Vehring
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Voge
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - M Vraeghe
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - C Walck
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Wallraff
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - Ch Weaver
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Wellons
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - C Wendt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Westerhoff
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - B J Whelan
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia 5005, Australia
| | - N Whitehorn
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - C Wichary
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Wiebe
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C H Wiebusch
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D R Williams
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - H Wissing
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - M Wolf
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - T R Wood
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - K Woschnagg
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - D L Xu
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - X W Xu
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - Y Xu
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | | | - G Yodh
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - S Yoshida
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - P Zarzhitsky
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - J Ziemann
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Zoll
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| |
Collapse
|
12
|
Aartsen MG, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Altmann D, Anderson T, Arguelles C, Arlen TC, Auffenberg J, Bai X, Barwick SW, Baum V, Beatty JJ, Tjus JB, Becker KH, BenZvi S, Berghaus P, Berley D, Bernardini E, Bernhard A, Besson DZ, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohm C, Bos F, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown AM, Casey J, Casier M, Cheung E, Chirkin D, Christov A, Christy B, Clark K, Classen L, Clevermann F, Coenders S, Cowen DF, Cruz Silva AH, Danninger M, Daughhetee J, Davis JC, Day M, de André JPAM, De Clercq C, De Ridder S, Desiati P, de Vries KD, de With M, DeYoung T, Díaz-Vélez JC, Dunkman M, Eagan R, Eberhardt B, Eichmann B, Eisch J, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feintzeig J, Felde J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Frantzen K, Fuchs T, Gaisser TK, Gaior R, Gallagher J, Gerhardt L, Gier D, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Goodman JA, Góra D, Grant D, Gretskov P, Groh JC, Groß A, Ha C, Haack C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Hebecker D, Heereman D, Heinen D, Helbing K, Hellauer R, Hellwig D, Hickford S, Hill GC, Hoffman KD, Hoffmann R, Homeier A, Hoshina K, Huang F, Huelsnitz W, Hulth PO, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze GS, Jero K, Jlelati O, Jurkovic M, Kaminsky B, Kappes A, Karg T, Karle A, Kauer M, Keivani A, Kelley JL, Kheirandish A, Kiryluk J, Kläs J, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Koob A, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Kriesten A, Krings K, Kroll G, Kroll M, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Larsen DT, Larson MJ, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Madsen J, Maggi G, Maruyama R, Mase K, Matis HS, Maunu R, McNally F, Meagher K, Medici M, Meli A, Meures T, Miarecki S, Middell E, Middlemas E, Milke N, Miller J, Mohrmann L, Montaruli T, Morse R, Nahnhauer R, Naumann U, Niederhausen H, Nowicki SC, Nygren DR, Obertacke A, Odrowski S, Olivas A, Omairat A, O’Murchadha A, Palczewski T, Paul L, Penek Ö, Pepper JA, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Posselt J, Price PB, Przybylski GT, Pütz J, Quinnan M, Rädel L, Rameez M, Rawlins K, Redl P, Rees I, Reimann R, Relich M, Resconi E, Rhode W, Richman M, Riedel B, Robertson S, Rodrigues JP, Rongen M, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba SM, Sander HG, Sandroos J, Santander M, Sarkar S, Schatto K, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Shanidze R, Smith MWE, Soldin D, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stanisha NA, Stasik A, Stezelberger T, Stokstad RG, Stößl A, Strahler EA, Ström R, Strotjohann NL, Sullivan GW, Taavola H, Taboada I, Tamburro A, Tepe A, Ter-Antonyan S, Terliuk A, Tešić G, Tilav S, Toale PA, Tobin MN, Tosi D, Tselengidou M, Unger E, Usner M, Vallecorsa S, van Eijndhoven N, Vandenbroucke J, van Santen J, Vehring M, Voge M, Vraeghe M, Walck C, Wallraff M, Weaver C, Wellons M, Wendt C, Westerhoff S, Whelan BJ, Whitehorn N, Wichary C, Wiebe K, Wiebusch CH, Williams DR, Wissing H, Wolf M, Wood TR, Woschnagg K, Xu DL, Xu XW, Yanez JP, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zoll M, Morik K. Development of a general analysis and unfolding scheme and its application to measure the energy spectrum of atmospheric neutrinos with IceCube: IceCube Collaboration. Eur Phys J C Part Fields 2015; 75:116. [PMID: 25995705 PMCID: PMC4429507 DOI: 10.1140/epjc/s10052-015-3330-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 02/19/2015] [Indexed: 06/04/2023]
Abstract
We present the development and application of a generic analysis scheme for the measurement of neutrino spectra with the IceCube detector. This scheme is based on regularized unfolding, preceded by an event selection which uses a Minimum Redundancy Maximum Relevance algorithm to select the relevant variables and a random forest for the classification of events. The analysis has been developed using IceCube data from the 59-string configuration of the detector. 27,771 neutrino candidates were detected in 346 days of livetime. A rejection of 99.9999 % of the atmospheric muon background is achieved. The energy spectrum of the atmospheric neutrino flux is obtained using the TRUEE unfolding program. The unfolded spectrum of atmospheric muon neutrinos covers an energy range from 100 GeV to 1 PeV. Compared to the previous measurement using the detector in the 40-string configuration, the analysis presented here, extends the upper end of the atmospheric neutrino spectrum by more than a factor of two, reaching an energy region that has not been previously accessed by spectral measurements.
Collapse
Affiliation(s)
- M. G. Aartsen
- School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005 Australia
| | | | - J. Adams
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - J. A. Aguilar
- Département de physique nucléaire et corpusculaire, Université de Genève, 1211 Geneva, Switzerland
| | - M. Ahlers
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Ahrens
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - D. Altmann
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - T. Anderson
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - C. Arguelles
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - T. C. Arlen
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - J. Auffenberg
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - X. Bai
- Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701 USA
| | - S. W. Barwick
- Department of Physics and Astronomy, University of California, Irvine, CA 92697 USA
| | - V. Baum
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - J. J. Beatty
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 USA
- Department of Astronomy, Ohio State University, Columbus, OH 43210 USA
| | - J. Becker Tjus
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - K.-H. Becker
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - S. BenZvi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | | | - D. Berley
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | | | - A. Bernhard
- Technische Universität München, 85748 Garching, Germany
| | - D. Z. Besson
- Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045 USA
| | - G. Binder
- Department of Physics, University of California, Berkeley, CA 94720 USA
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - D. Bindig
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - M. Bissok
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - E. Blaufuss
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - J. Blumenthal
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - D. J. Boersma
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - C. Bohm
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - F. Bos
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - D. Bose
- Department of Physics, Sungkyunkwan University, Suwon, 440-746 Korea
| | - S. Böser
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - O. Botner
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - L. Brayeur
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | | | - A. M. Brown
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - J. Casey
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - M. Casier
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - E. Cheung
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - D. Chirkin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - A. Christov
- Département de physique nucléaire et corpusculaire, Université de Genève, 1211 Geneva, Switzerland
| | - B. Christy
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - K. Clark
- Department of Physics, University of Toronto, Toronto, ON M5S 1A7 Canada
| | - L. Classen
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - F. Clevermann
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - S. Coenders
- Technische Universität München, 85748 Garching, Germany
| | - D. F. Cowen
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 USA
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | | | - M. Danninger
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - J. Daughhetee
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - J. C. Davis
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 USA
| | - M. Day
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - J. P. A. M. de André
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - C. De Clercq
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - S. De Ridder
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - P. Desiati
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - K. D. de Vries
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - M. de With
- Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - T. DeYoung
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - J. C. Díaz-Vélez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Dunkman
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - R. Eagan
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - B. Eberhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - B. Eichmann
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - J. Eisch
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - S. Euler
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P. A. Evenson
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - O. Fadiran
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - A. R. Fazely
- Department of Physics, Southern University, Baton Rouge, LA 70813 USA
| | - A. Fedynitch
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - J. Feintzeig
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - J. Felde
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - T. Feusels
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - K. Filimonov
- Department of Physics, University of California, Berkeley, CA 94720 USA
| | - C. Finley
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - T. Fischer-Wasels
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - S. Flis
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - A. Franckowiak
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - K. Frantzen
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - T. Fuchs
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - T. K. Gaisser
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - R. Gaior
- Department of Physics, Chiba University, Chiba, 263-8522 Japan
| | - J. Gallagher
- Department of Astronomy, University of Wisconsin, Madison, WI 53706 USA
| | - L. Gerhardt
- Department of Physics, University of California, Berkeley, CA 94720 USA
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - D. Gier
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - L. Gladstone
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | | | - A. Goldschmidt
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - G. Golup
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - J. G. Gonzalez
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - J. A. Goodman
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - D. Góra
- DESY, 15735 Zeuthen, Germany
| | - D. Grant
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - P. Gretskov
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - J. C. Groh
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - A. Groß
- Technische Universität München, 85748 Garching, Germany
| | - C. Ha
- Department of Physics, University of California, Berkeley, CA 94720 USA
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - C. Haack
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - A. Haj Ismail
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - P. Hallen
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - A. Hallgren
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F. Halzen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - K. Hanson
- Université Libre de Bruxelles, Science Faculty CP230, 1050 Brussels, Belgium
| | - D. Hebecker
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - D. Heereman
- Université Libre de Bruxelles, Science Faculty CP230, 1050 Brussels, Belgium
| | - D. Heinen
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - K. Helbing
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - R. Hellauer
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - D. Hellwig
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - S. Hickford
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - G. C. Hill
- School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005 Australia
| | - K. D. Hoffman
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - R. Hoffmann
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - A. Homeier
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - K. Hoshina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - F. Huang
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - W. Huelsnitz
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - P. O. Hulth
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - K. Hultqvist
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - S. Hussain
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - A. Ishihara
- Department of Physics, Chiba University, Chiba, 263-8522 Japan
| | | | - J. Jacobsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - K. Jagielski
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | | | - K. Jero
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - O. Jlelati
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - M. Jurkovic
- Technische Universität München, 85748 Garching, Germany
| | | | - A. Kappes
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - T. Karg
- DESY, 15735 Zeuthen, Germany
| | - A. Karle
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - A. Keivani
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - J. L. Kelley
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - A. Kheirandish
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - J. Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 USA
| | - J. Kläs
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - S. R. Klein
- Department of Physics, University of California, Berkeley, CA 94720 USA
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - J. H. Köhne
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - G. Kohnen
- Université de Mons, 7000 Mons, Belgium
| | - H. Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - A. Koob
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - L. Köpke
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - C. Kopper
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - S. Kopper
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - D. J. Koskinen
- Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
| | - M. Kowalski
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - A. Kriesten
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - K. Krings
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - G. Kroll
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - M. Kroll
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - J. Kunnen
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - N. Kurahashi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - T. Kuwabara
- Department of Physics, Chiba University, Chiba, 263-8522 Japan
| | - M. Labare
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - D. T. Larsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. J. Larson
- Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
| | - M. Lesiak-Bzdak
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 USA
| | - M. Leuermann
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - J. Leute
- Technische Universität München, 85748 Garching, Germany
| | - J. Lünemann
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - J. Madsen
- Department of Physics, University of Wisconsin, River Falls, WI 54022 USA
| | - G. Maggi
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - R. Maruyama
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - K. Mase
- Department of Physics, Chiba University, Chiba, 263-8522 Japan
| | - H. S. Matis
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - R. Maunu
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - F. McNally
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - K. Meagher
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - M. Medici
- Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
| | - A. Meli
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - T. Meures
- Université Libre de Bruxelles, Science Faculty CP230, 1050 Brussels, Belgium
| | - S. Miarecki
- Department of Physics, University of California, Berkeley, CA 94720 USA
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | | | - E. Middlemas
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - N. Milke
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - J. Miller
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | | | - T. Montaruli
- Département de physique nucléaire et corpusculaire, Université de Genève, 1211 Geneva, Switzerland
| | - R. Morse
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | | | - U. Naumann
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - H. Niederhausen
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 USA
| | - S. C. Nowicki
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - D. R. Nygren
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - A. Obertacke
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - S. Odrowski
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - A. Olivas
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - A. Omairat
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - A. O’Murchadha
- Université Libre de Bruxelles, Science Faculty CP230, 1050 Brussels, Belgium
| | - T. Palczewski
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 USA
| | - L. Paul
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - Ö. Penek
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - J. A. Pepper
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 USA
| | - C. Pérez de los Heros
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - C. Pfendner
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 USA
| | - D. Pieloth
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - E. Pinat
- Université Libre de Bruxelles, Science Faculty CP230, 1050 Brussels, Belgium
| | - J. Posselt
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - P. B. Price
- Department of Physics, University of California, Berkeley, CA 94720 USA
| | | | - J. Pütz
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - M. Quinnan
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - L. Rädel
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - M. Rameez
- Département de physique nucléaire et corpusculaire, Université de Genève, 1211 Geneva, Switzerland
| | - K. Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, AK 99508 USA
| | - P. Redl
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - I. Rees
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - R. Reimann
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - M. Relich
- Department of Physics, Chiba University, Chiba, 263-8522 Japan
| | - E. Resconi
- Technische Universität München, 85748 Garching, Germany
| | - W. Rhode
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - M. Richman
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - B. Riedel
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - S. Robertson
- School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005 Australia
| | - J. P. Rodrigues
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Rongen
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - C. Rott
- Department of Physics, Sungkyunkwan University, Suwon, 440-746 Korea
| | - T. Ruhe
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - B. Ruzybayev
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - D. Ryckbosch
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - S. M. Saba
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - H.-G. Sander
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - J. Sandroos
- Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
| | - M. Santander
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - S. Sarkar
- Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
- Department of Physics, University of Oxford, 1 Keble Road, Oxford, OX1 3NP UK
| | - K. Schatto
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - F. Scheriau
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - T. Schmidt
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - M. Schmitz
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - S. Schoenen
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - S. Schöneberg
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | | | - A. Schukraft
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - L. Schulte
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - O. Schulz
- Technische Universität München, 85748 Garching, Germany
| | - D. Seckel
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - Y. Sestayo
- Technische Universität München, 85748 Garching, Germany
| | - S. Seunarine
- Department of Physics, University of Wisconsin, River Falls, WI 54022 USA
| | | | - M. W. E. Smith
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - D. Soldin
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - G. M. Spiczak
- Department of Physics, University of Wisconsin, River Falls, WI 54022 USA
| | | | - M. Stamatikos
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 USA
| | - T. Stanev
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - N. A. Stanisha
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - A. Stasik
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - T. Stezelberger
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - R. G. Stokstad
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | | | - E. A. Strahler
- Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium
| | - R. Ström
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - N. L. Strotjohann
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - G. W. Sullivan
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - H. Taavola
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I. Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - A. Tamburro
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - A. Tepe
- Department of Physics, University of Wuppertal, 42119 Wuppertal, Germany
| | - S. Ter-Antonyan
- Department of Physics, Southern University, Baton Rouge, LA 70813 USA
| | | | - G. Tešić
- Department of Physics, Pennsylvania State University, University Park, PA 16802 USA
| | - S. Tilav
- Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716 USA
| | - P. A. Toale
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 USA
| | - M. N. Tobin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - D. Tosi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Tselengidou
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - E. Unger
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - M. Usner
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - S. Vallecorsa
- Département de physique nucléaire et corpusculaire, Université de Genève, 1211 Geneva, Switzerland
| | | | - J. Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - J. van Santen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Vehring
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - M. Voge
- Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn, Germany
| | - M. Vraeghe
- Department of Physics and Astronomy, University of Gent, 9000 Ghent, Belgium
| | - C. Walck
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - M. Wallraff
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - Ch. Weaver
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - M. Wellons
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - C. Wendt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - S. Westerhoff
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - B. J. Whelan
- School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005 Australia
| | - N. Whitehorn
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706 USA
| | - C. Wichary
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - K. Wiebe
- Institute of Physics, University of Mainz, Staudinger Weg 7, 55099 Mainz, Germany
| | - C. H. Wiebusch
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - D. R. Williams
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 USA
| | - H. Wissing
- Department of Physics, University of Maryland, College Park, MD 20742 USA
| | - M. Wolf
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - T. R. Wood
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - K. Woschnagg
- Department of Physics, University of California, Berkeley, CA 94720 USA
| | - D. L. Xu
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 USA
| | - X. W. Xu
- Department of Physics, Southern University, Baton Rouge, LA 70813 USA
| | | | - G. Yodh
- Department of Physics and Astronomy, University of California, Irvine, CA 92697 USA
| | - S. Yoshida
- Department of Physics, Chiba University, Chiba, 263-8522 Japan
| | - P. Zarzhitsky
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 USA
| | - J. Ziemann
- Department of Physics, TU Dortmund University, 44221 Dortmund, Germany
| | - S. Zierke
- III. Physikalisches Institut, RWTH Aachen University, 52056 Aachen, Germany
| | - M. Zoll
- Department of Physics, Oskar Klein Centre, Stockholm University, 10691 Stockholm, Sweden
| | - K. Morik
- Department of Computer Science, TU Dortmund University, 44221 Dortmund, Germany
| |
Collapse
|
13
|
Aartsen MG, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Altmann D, Anderson T, Arguelles C, Arlen TC, Auffenberg J, Bai X, Barwick SW, Baum V, Beatty JJ, Becker Tjus J, Becker KH, BenZvi S, Berghaus P, Berley D, Bernardini E, Bernhard A, Besson DZ, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohm C, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown AM, Casey J, Casier M, Chirkin D, Christov A, Christy B, Clark K, Classen L, Clevermann F, Coenders S, Cowen DF, Cruz Silva AH, Danninger M, Daughhetee J, Davis JC, Day M, de André JPAM, De Clercq C, De Ridder S, Desiati P, de Vries KD, de With M, DeYoung T, Díaz-Vélez JC, Dunkman M, Eagan R, Eberhardt B, Eichmann B, Eisch J, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feintzeig J, Felde J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Frantzen K, Fuchs T, Gaisser TK, Gallagher J, Gerhardt L, Gier D, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Goodman JA, Góra D, Grandmont DT, Grant D, Gretskov P, Groh JC, Groß A, Ha C, Haack C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Hebecker D, Heereman D, Heinen D, Helbing K, Hellauer R, Hellwig D, Hickford S, Hill GC, Hoffman KD, Hoffmann R, Homeier A, Hoshina K, Huang F, Huelsnitz W, Hulth PO, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze GS, Jero K, Jlelati O, Jurkovic M, Kaminsky B, Kappes A, Karg T, Karle A, Kauer M, Kelley JL, Kheirandish A, Kiryluk J, Kläs J, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Koob A, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Kriesten A, Krings K, Kroll G, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Larsen DT, Larson MJ, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Macías O, Madsen J, Maggi G, Maruyama R, Mase K, Matis HS, McNally F, Meagher K, Meli A, Meures T, Miarecki S, Middell E, Middlemas E, Milke N, Miller J, Mohrmann L, Montaruli T, Morse R, Nahnhauer R, Naumann U, Niederhausen H, Nowicki SC, Nygren DR, Obertacke A, Odrowski S, Olivas A, Omairat A, O'Murchadha A, Palczewski T, Paul L, Penek O, Pepper JA, Pérez de Los Heros C, Pfendner C, Pieloth D, Pinat E, Posselt J, Price PB, Przybylski GT, Pütz J, Quinnan M, Rädel L, Rameez M, Rawlins K, Redl P, Rees I, Reimann R, Resconi E, Rhode W, Richman M, Riedel B, Robertson S, Rodrigues JP, Rongen M, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba SM, Sander HG, Santander M, Sarkar S, Schatto K, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Shanidze R, Sheremata C, Smith MWE, Soldin D, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stanisha NA, Stasik A, Stezelberger T, Stokstad RG, Stößl A, Strahler EA, Ström R, Strotjohann NL, Sullivan GW, Taavola H, Taboada I, Tamburro A, Tepe A, Ter-Antonyan S, Terliuk A, Tešić G, Tilav S, Toale PA, Tobin MN, Tosi D, Tselengidou M, Unger E, Usner M, Vallecorsa S, van Eijndhoven N, Vandenbroucke J, van Santen J, Vehring M, Voge M, Vraeghe M, Walck C, Wallraff M, Weaver C, Wellons M, Wendt C, Westerhoff S, Whelan BJ, Whitehorn N, Wichary C, Wiebe K, Wiebusch CH, Williams DR, Wissing H, Wolf M, Wood TR, Woschnagg K, Xu DL, Xu XW, Yanez JP, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zoll M. Observation of high-energy astrophysical neutrinos in three years of IceCube data. Phys Rev Lett 2014; 113:101101. [PMID: 25238345 DOI: 10.1103/physrevlett.113.101101] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Indexed: 06/03/2023]
Abstract
A search for high-energy neutrinos interacting within the IceCube detector between 2010 and 2012 provided the first evidence for a high-energy neutrino flux of extraterrestrial origin. Results from an analysis using the same methods with a third year (2012-2013) of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV-PeV range at the level of 10(-8) GeV cm-2 s-1 sr-1 per flavor and reject a purely atmospheric explanation for the combined three-year data at 5.7σ. The data are consistent with expectations for equal fluxes of all three neutrino flavors and with isotropic arrival directions, suggesting either numerous or spatially extended sources. The three-year data set, with a live time of 988 days, contains a total of 37 neutrino candidate events with deposited energies ranging from 30 to 2000 TeV. The 2000-TeV event is the highest-energy neutrino interaction ever observed.
Collapse
Affiliation(s)
- M G Aartsen
- School of Chemistry & Physics, University of Adelaide, Adelaide, South Australia 5005 Australia
| | | | - J Adams
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - J A Aguilar
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - M Ahlers
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Ahrens
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - D Altmann
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - T Anderson
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - C Arguelles
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T C Arlen
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J Auffenberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - X Bai
- Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - S W Barwick
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - V Baum
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - J J Beatty
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA and Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
| | - J Becker Tjus
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - K-H Becker
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S BenZvi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - D Berley
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | | | | | - D Z Besson
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA
| | - G Binder
- Department of Physics, University of California, Berkeley, California 94720, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Bindig
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - M Bissok
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E Blaufuss
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - J Blumenthal
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D J Boersma
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - C Bohm
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - D Bose
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - S Böser
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - O Botner
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - L Brayeur
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | | | - A M Brown
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - J Casey
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - M Casier
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - D Chirkin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Christov
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - B Christy
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - K Clark
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - L Classen
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - F Clevermann
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | | | - D F Cowen
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, USA and Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | | | - M Danninger
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - J Daughhetee
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - J C Davis
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - M Day
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J P A M de André
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - C De Clercq
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - S De Ridder
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - P Desiati
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K D de Vries
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - M de With
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - T DeYoung
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J C Díaz-Vélez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Dunkman
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - R Eagan
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - B Eberhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - B Eichmann
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Eisch
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Euler
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - P A Evenson
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - O Fadiran
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A R Fazely
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - A Fedynitch
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Feintzeig
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Felde
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - T Feusels
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - K Filimonov
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - C Finley
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - T Fischer-Wasels
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S Flis
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - A Franckowiak
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - K Frantzen
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Fuchs
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T K Gaisser
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - J Gallagher
- Department of Astronomy, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - L Gerhardt
- Department of Physics, University of California, Berkeley, California 94720, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Gier
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Gladstone
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - A Goldschmidt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - G Golup
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - J G Gonzalez
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - J A Goodman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - D Góra
- DESY, D-15735 Zeuthen, Germany
| | - D T Grandmont
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - D Grant
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - P Gretskov
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J C Groh
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Groß
- T.U. Munich, D-85748 Garching, Germany
| | - C Ha
- Department of Physics, University of California, Berkeley, California 94720, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Haack
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Haj Ismail
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - P Hallen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Hallgren
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - F Halzen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Hanson
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - D Hebecker
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - D Heereman
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - D Heinen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Helbing
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - R Hellauer
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - D Hellwig
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Hickford
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - G C Hill
- School of Chemistry & Physics, University of Adelaide, Adelaide, South Australia 5005 Australia
| | - K D Hoffman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - R Hoffmann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - A Homeier
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - K Hoshina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - F Huang
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - W Huelsnitz
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - P O Hulth
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - K Hultqvist
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - S Hussain
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - A Ishihara
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | | | - J Jacobsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Jagielski
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - G S Japaridze
- CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
| | - K Jero
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - O Jlelati
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | | | | | - A Kappes
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - T Karg
- DESY, D-15735 Zeuthen, Germany
| | - A Karle
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J L Kelley
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Kheirandish
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - J Kläs
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S R Klein
- Department of Physics, University of California, Berkeley, California 94720, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J-H Köhne
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - G Kohnen
- Université de Mons, 7000 Mons, Belgium
| | - H Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - A Koob
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Köpke
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Kopper
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Kopper
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - D J Koskinen
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Kowalski
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - A Kriesten
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Krings
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - G Kroll
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - J Kunnen
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - N Kurahashi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T Kuwabara
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - M Labare
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - D T Larsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M J Larson
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Lesiak-Bzdak
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - M Leuermann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J Leute
- T.U. Munich, D-85748 Garching, Germany
| | - J Lünemann
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - O Macías
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - J Madsen
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - G Maggi
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - R Maruyama
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Mase
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - H S Matis
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F McNally
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Meagher
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Meli
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - T Meures
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - S Miarecki
- Department of Physics, University of California, Berkeley, California 94720, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | - E Middlemas
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - N Milke
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - J Miller
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | | | - T Montaruli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - R Morse
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - U Naumann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - H Niederhausen
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - S C Nowicki
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - D R Nygren
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Obertacke
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S Odrowski
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - A Olivas
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Omairat
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - A O'Murchadha
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - T Palczewski
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - L Paul
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - O Penek
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J A Pepper
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - C Pérez de Los Heros
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - C Pfendner
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - D Pieloth
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - E Pinat
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - J Posselt
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - P B Price
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - G T Przybylski
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Pütz
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Quinnan
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - L Rädel
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Rameez
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - K Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, Alaska 99508, USA
| | - P Redl
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - I Rees
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - R Reimann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E Resconi
- T.U. Munich, D-85748 Garching, Germany
| | - W Rhode
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Richman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - B Riedel
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Robertson
- School of Chemistry & Physics, University of Adelaide, Adelaide, South Australia 5005 Australia
| | - J P Rodrigues
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Rongen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - T Ruhe
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - B Ruzybayev
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D Ryckbosch
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - S M Saba
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - H-G Sander
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - M Santander
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Sarkar
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark and Department of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom
| | - K Schatto
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - F Scheriau
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Schmidt
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - M Schmitz
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Schoenen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Schöneberg
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | | | - A Schukraft
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Schulte
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - O Schulz
- T.U. Munich, D-85748 Garching, Germany
| | - D Seckel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - Y Sestayo
- T.U. Munich, D-85748 Garching, Germany
| | - S Seunarine
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | | | - C Sheremata
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - M W E Smith
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - D Soldin
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - G M Spiczak
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | | | - M Stamatikos
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - T Stanev
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - N A Stanisha
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Stasik
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - T Stezelberger
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R G Stokstad
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Stößl
- DESY, D-15735 Zeuthen, Germany
| | - E A Strahler
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - R Ström
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - N L Strotjohann
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - G W Sullivan
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - H Taavola
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - I Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - A Tamburro
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - A Tepe
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S Ter-Antonyan
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | | | - G Tešić
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - S Tilav
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - P A Toale
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - M N Tobin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - D Tosi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Tselengidou
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - E Unger
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - M Usner
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - S Vallecorsa
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - N van Eijndhoven
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - J Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J van Santen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Vehring
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Voge
- Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany
| | - M Vraeghe
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - C Walck
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Wallraff
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - Ch Weaver
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Wellons
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - C Wendt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Westerhoff
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - B J Whelan
- School of Chemistry & Physics, University of Adelaide, Adelaide, South Australia 5005 Australia
| | - N Whitehorn
- Department of Physics, University of California, Berkeley, California 94720, USA and Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - C Wichary
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Wiebe
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C H Wiebusch
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D R Williams
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - H Wissing
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - M Wolf
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - T R Wood
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - K Woschnagg
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - D L Xu
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - X W Xu
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | | | - G Yodh
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - S Yoshida
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - P Zarzhitsky
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - J Ziemann
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Zierke
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Zoll
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| |
Collapse
|
14
|
Aartsen M, Abbasi R, Ackermann M, Adams J, Aguilar J, Ahlers M, Altmann D, Arguelles C, Arlen T, Auffenberg J, Bai X, Baker M, Barwick S, Baum V, Bay R, Beatty J, Becker Tjus J, Becker KH, BenZvi S, Berghaus P, Berley D, Bernardini E, Bernhard A, Besson D, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma D, Bohm C, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown A, Bruijn R, Casey J, Casier M, Chirkin D, Christov A, Christy B, Clark K, Classen L, Clevermann F, Coenders S, Cohen S, Cowen D, Cruz Silva A, Danninger M, Daughhetee J, Davis J, Day M, de André J, De Clercq C, De Ridder S, Desiati P, de Vries K, de With M, DeYoung T, Díaz-Vélez J, Dunkman M, Eagan R, Eberhardt B, Eichmann B, Eisch J, Euler S, Evenson P, Fadiran O, Fazely A, Fedynitch A, Feintzeig J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Frantzen K, Fuchs T, Gaisser T, Gallagher J, Gerhardt L, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez J, Goodman J, Góra D, Grandmont D, Grant D, Gretskov P, Groh J, Groß A, Ha C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Hebecker D, Heereman D, Heinen D, Helbing K, Hellauer R, Hickford S, Hill G, Hoffman K, Hoffmann R, Homeier A, Hoshina K, Huang F, Huelsnitz W, Hulth P, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze G, Jero K, Jlelati O, Kaminsky B, Kappes A, Karg T, Karle A, Kauer M, Kelley J, Kiryluk J, Kläs J, Klein S, Köhne JH, Kohnen G, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen D, Kowalski M, Krasberg M, Kriesten A, Krings K, Kroll G, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Landsman H, Larson M, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Macías O, Madsen J, Maggi G, Maruyama R, Mase K, Matis H, 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, Nygren D, Obertacke A, Odrowski S, Olivas A, Omairat A, O’Murchadha A, Palczewski T, Paul L, Pepper J, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Posselt J, Price P, Przybylski G, Quinnan M, Rädel L, Rameez M, Rawlins K, Redl P, Reimann R, Resconi E, Rhode W, Ribordy M, Richman M, Riedel B, Robertson S, Rodrigues J, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba S, Sander HG, Santander M, Sarkar S, Schatto K, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Shanidze R, Sheremata C, Smith M, Soldin D, Spiczak G, Spiering C, Stamatikos M, Stanev T, Stanisha N, Stasik A, Stezelberger T, Stokstad R, Stößl A, Strahler E, Ström R, Strotjohann N, Sullivan G, Taavola H, Taboada I, Tamburro A, Tepe A, Ter-Antonyan S, Tešić G, Tilav S, Toale P, Tobin M, Toscano S, Tselengidou M, Unger E, Usner M, Vallecorsa S, van Eijndhoven N, Van Overloop A, van Santen J, Vehring M, Voge M, Vraeghe M, Walck C, Waldenmaier T, Wallraff M, Weaver C, Wellons M, Wendt C, Westerhoff S, Whelan B, Whitehorn N, Wiebe K, Wiebusch C, Williams D, Wissing H, Wolf M, Wood T, Woschnagg K, Xu D, Xu X, Yanez J, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zoll M. Search for a diffuse flux of astrophysical muon neutrinos with the IceCube 59-string configuration. Int J Clin Exp Med 2014. [DOI: 10.1103/physrevd.89.062007] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
15
|
Aartsen MG, Abbasi R, Abdou Y, Ackermann M, Adams J, Aguilar JA, Ahlers M, Altmann D, Auffenberg J, Bai X, Baker M, Barwick SW, Baum V, Bay R, Beatty JJ, Bechet S, Becker Tjus J, Becker KH, Benabderrahmane ML, BenZvi S, Berghaus P, Berley D, Bernardini E, Bernhard A, Bertrand D, Besson DZ, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohaichuk S, Bohm C, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown AM, Bruijn R, Brunner J, Carson M, Casey J, Casier M, Chirkin D, Christov A, Christy B, Clark K, Clevermann F, Coenders S, Cohen S, Cowen DF, Cruz Silva AH, Danninger M, Daughhetee J, Davis JC, Day M, De Clercq C, De Ridder S, Desiati P, de Vries KD, de With M, DeYoung T, Díaz-Vélez JC, Dunkman M, Eagan R, Eberhardt B, Eichmann B, Eisch J, Ellsworth RW, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feintzeig J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Frantzen K, Fuchs T, Gaisser TK, Gallagher J, Gerhardt L, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Goodman JA, Góra D, Grandmont DT, Grant D, Groß A, Ha C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Heereman D, Heinen D, Helbing K, Hellauer R, Hickford S, Hill GC, Hoffman KD, Hoffmann R, Homeier A, Hoshina K, Huelsnitz W, Hulth PO, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze GS, Jero K, Jlelati O, Kaminsky B, Kappes A, Karg T, Karle A, Kelley JL, Kiryluk J, Kläs J, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Krasberg M, Krings K, Kroll G, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Landsman H, Larson MJ, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Madsen J, Maggi G, Maruyama R, Mase K, Matis HS, 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 SC, Nygren DR, Obertacke A, Odrowski S, Olivas A, O'Murchadha A, Paul L, Pepper JA, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Posselt J, Price PB, Przybylski GT, Rädel L, Rameez M, Rawlins K, Redl P, Reimann R, Resconi E, Rhode W, Ribordy M, Richman M, Riedel B, Rodrigues JP, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba SM, Salameh T, Sander HG, Santander M, Sarkar S, Schatto K, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Shanidze R, Sheremata C, Smith MWE, Soldin D, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stasik A, Stezelberger T, Stokstad RG, Stößl A, Strahler EA, Ström R, Sullivan GW, Taavola H, Taboada I, Tamburro A, Tepe A, Ter-Antonyan S, Tešić G, Tilav S, Toale PA, Toscano 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 C, Wellons M, Wendt C, Westerhoff S, Whitehorn N, Wiebe K, Wiebusch CH, Williams DR, Wissing H, Wolf M, Wood TR, Woschnagg K, Xu DL, Xu XW, Yanez JP, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zoll M. Evidence for high-energy extraterrestrial neutrinos at the IceCube detector. Science 2013; 342:1242856. [PMID: 24264993 DOI: 10.1126/science.1242856] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
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 4σ 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.
Collapse
|
16
|
Aartsen MG, Abbasi R, Abdou Y, Ackermann M, Adams J, Aguilar JA, Ahlers M, Altmann D, Auffenberg J, Bai X, Baker M, Barwick SW, Baum V, Bay R, Beatty JJ, Bechet S, Becker Tjus J, Becker KH, Bell M, Benabderrahmane ML, Benzvi S, Berdermann J, Berghaus P, Berley D, Bernardini E, Bernhard A, Bertrand D, Besson DZ, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohaichuk S, Bohm C, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown AM, Bruijn R, Brunner J, Carson M, Casey J, Casier M, Chirkin D, Christov A, Christy B, Clark K, Clevermann F, Coenders S, Cohen S, Cowen DF, Cruz Silva AH, Danninger M, Daughhetee J, Davis JC, De Clercq C, De Ridder S, Desiati P, de With M, DeYoung T, Díaz-Vélez JC, Dunkman M, Eagan R, Eberhardt B, Eisch J, Ellsworth RW, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feintzeig J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Franke R, Frantzen K, Fuchs T, Gaisser TK, Gallagher J, Gerhardt L, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Goodman JA, Góra D, Grandmont DT, Grant D, Groß A, Ha C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Heereman D, Heinen D, Helbing K, Hellauer R, Hickford S, Hill GC, Hoffman KD, Hoffmann R, Homeier A, Hoshina K, Huelsnitz W, Hulth PO, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze GS, Jero K, Jlelati O, Kaminsky B, Kappes A, Karg T, Karle A, Kelley JL, Kiryluk J, Kislat F, Kläs J, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Krasberg M, Krings K, Kroll G, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Landsman H, Larson MJ, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Madsen J, Maruyama R, Mase K, Matis HS, McNally F, Meagher K, Merck M, Mészáros P, Meures T, Miarecki S, Middell E, Milke N, Miller J, Mohrmann L, Montaruli T, Morse R, Nahnhauer R, Naumann U, Niederhausen H, Nowicki SC, Nygren DR, Obertacke A, Odrowski S, Olivas A, Olivo M, O'Murchadha A, Palazzo A, Paul L, Pepper JA, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Pirk N, Posselt J, Price PB, Przybylski GT, Rädel L, Rameez M, Rawlins K, Redl P, Reimann R, Resconi E, Rhode W, Ribordy M, Richman M, Riedel B, Rodrigues JP, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba SM, Salameh T, Sander HG, Santander M, Sarkar S, Schatto K, Scheel M, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Sheremata C, Smith MWE, Soldin D, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stasik A, Stezelberger T, Stokstad RG, Stößl A, Strahler EA, Ström R, Sullivan GW, Taavola H, Taboada I, Tamburro A, Tepe A, Ter-Antonyan S, Tešić G, Tilav S, Toale PA, Toscano S, Usner M, van der Drift D, van Eijndhoven N, Van Overloop A, van Santen J, Vehring M, Voge M, Vraeghe M, Walck C, Waldenmaier T, Wallraff M, Wasserman R, Weaver C, Wellons M, Wendt C, Westerhoff S, Whitehorn N, Wiebe K, Wiebusch CH, Williams DR, Wissing H, Wolf M, Wood TR, Woschnagg K, Xu C, Xu DL, Xu XW, Yanez JP, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zoll M. Measurement of atmospheric neutrino oscillations with IceCube. Phys Rev Lett 2013; 111:081801. [PMID: 24010427 DOI: 10.1103/physrevlett.111.081801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Indexed: 06/02/2023]
Abstract
We present the first statistically significant detection of neutrino oscillations in the high-energy regime (>20 GeV) from an analysis of IceCube Neutrino Observatory data collected in 2010 and 2011. This measurement is made possible by the low-energy threshold of the DeepCore detector (~20 GeV) and benefits from the use of the IceCube detector as a veto against cosmic-ray-induced muon background. The oscillation signal was detected within a low-energy muon neutrino sample (20-100 GeV) extracted from data collected by DeepCore. A high-energy muon neutrino sample (100 GeV-10 TeV) was extracted from IceCube data to constrain systematic uncertainties. The disappearance of low-energy upward-going muon neutrinos was observed, and the nonoscillation hypothesis is rejected with more than 5σ significance. In a two-neutrino flavor formalism, our data are best described by the atmospheric neutrino oscillation parameters |Δm(32)(2)|=(2.3(-0.5)(+0.6))×10(-3) eV(2) and sin(2)(2θ(23))>0.93, and maximum mixing is favored.
Collapse
Affiliation(s)
- M G Aartsen
- School of Chemistry and Physics, University of Adelaide, Adelaide South Australia, 5005 Australia
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Aartsen MG, Abbasi R, Abdou Y, Ackermann M, Adams J, Aguilar JA, Ahlers M, Altmann D, Auffenberg J, Bai X, Baker M, Barwick SW, Baum V, Bay R, Beatty JJ, Bechet S, Becker Tjus J, Becker KH, Bell M, Benabderrahmane ML, BenZvi S, Berdermann J, Berghaus P, Berley D, Bernardini E, Bernhard A, Bertrand D, Besson DZ, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohaichuk S, Bohm C, Bose D, Böser S, Botner O, Brayeur L, Bretz HP, Brown AM, Bruijn R, Brunner J, Carson M, Casey J, Casier M, Chirkin D, Christov A, Christy B, Clark K, Clevermann F, Coenders S, Cohen S, Cowen DF, Cruz Silva AH, Danninger M, Daughhetee J, Davis JC, De Clercq C, De Ridder S, Desiati P, de With M, DeYoung T, Díaz-Vélez JC, Dunkman M, Eagan R, Eberhardt B, Eisch J, Ellsworth RW, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feintzeig J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Franke R, Frantzen K, Fuchs T, Gaisser TK, Gallagher J, Gerhardt L, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Goodman JA, Góra D, Grant D, Groß A, Gurtner M, Ha C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Heereman D, Heinen D, Helbing K, Hellauer R, Hickford S, Hill GC, Hoffman KD, Hoffmann R, Homeier A, Hoshina K, Huelsnitz W, Hulth PO, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze GS, Jero K, Jlelati O, Kaminsky B, Kappes A, Karg T, Karle A, Kelley JL, Kiryluk J, Kislat F, Kläs J, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Krasberg M, Krings K, Kroll G, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Landsman H, Larson MJ, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Madsen J, Maruyama R, Mase K, Matis HS, McNally F, Meagher K, Merck M, Mészáros P, Meures T, Miarecki S, Middell E, Milke N, Miller J, Mohrmann L, Montaruli T, Morse R, Nahnhauer R, Naumann U, Niederhausen H, Nowicki SC, Nygren DR, Obertacke A, Odrowski S, Olivas A, Olivo M, O'Murchadha A, Paul L, Pepper JA, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Pirk N, Posselt J, Price PB, Przybylski GT, Rädel L, Rameez M, Rawlins K, Redl P, Reimann R, Resconi E, Rhode W, Ribordy M, Richman M, Riedel B, Rodrigues JP, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba SM, Salameh T, Sander HG, Santander M, Sarkar S, Schatto K, Scheel M, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Sheremata C, Smith MWE, Soiron M, Soldin D, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stasik A, Stezelberger T, Stokstad RG, Stößl A, Strahler EA, Ström R, Sullivan GW, Taavola H, Taboada I, Tamburro A, Ter-Antonyan S, Tešić G, Tilav S, Toale PA, Toscano S, Usner M, van der Drift D, van Eijndhoven N, Van Overloop A, van Santen J, Vehring M, Voge M, Vraeghe M, Walck C, Waldenmaier T, Wallraff M, Wasserman R, Weaver C, Wellons M, Wendt C, Westerhoff S, Whitehorn N, Wiebe K, Wiebusch CH, Williams DR, Wissing H, Wolf M, Wood TR, Woschnagg K, Xu C, Xu DL, Xu XW, Yanez JP, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zilles A, Zoll M. First observation of PeV-energy neutrinos with IceCube. Phys Rev Lett 2013; 111:021103. [PMID: 23889381 DOI: 10.1103/physrevlett.111.021103] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Indexed: 06/02/2023]
Abstract
We report on the observation of two neutrino-induced events which have an estimated deposited energy in the IceCube detector of 1.04±0.16 and 1.14±0.17 PeV, respectively, the highest neutrino energies observed so far. These events are consistent with fully contained particle showers induced by neutral-current ν(e,μ,τ) (ν(e,μ,τ)) or charged-current ν(e) (ν(e)) interactions within the IceCube detector. The events were discovered in a search for ultrahigh energy neutrinos using data corresponding to 615.9 days effective live time. The expected number of atmospheric background is 0.082±0.004(stat)(-0.057)(+0.041)(syst). The probability of observing two or more candidate events under the atmospheric background-only hypothesis is 2.9×10(-3) (2.8σ) taking into account the uncertainty on the expected number of background events. These two events could be a first indication of an astrophysical neutrino flux; the moderate significance, however, does not permit a definitive conclusion at this time.
Collapse
Affiliation(s)
- M G Aartsen
- School of Chemistry and Physics, University of Adelaide, Adelaide South Australia 5005, Australia
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Abstract
Demographic and epidemiological changes have resulted in increasing numbers of elderly people, and in increasing numbers of elderly people suffering from various degrees of cognitive impairment, including dementia. It is well recognized that the presence of cognitive impairment may impact upon an older person's decision-making capacity, which has, in turn, been associated with increased acknowledgement of the need for greater accessibility to methods by which substitute decision-makers are appointed. To this end, legislation has been enacted throughout Australia to enable the appointment of substitute decision-makers in the form of guardians and financial managers. Medical practitioners are the largest group of health professional whose opinion is sought when appointments are being considered. Despite the significance of the legislation to the evaluation of elderly people with impaired cognition, many health professionals remain unaware of the provisions of the legislation and are unclear about what information will be required. The aims of this review are first, to provide health professionals with the legal context within which their evaluations of disability and capacity take place, by way of a review of the relevant guardianship and financial management legislation in each of the states and territories of Australia; and second, to discuss how these provisions relate to existing clinical practice, with suggested guidelines for the capacity assessment. The focus and quality of information that health professionals provide will be enhanced by them having a greater understanding of their role within the wider legal context by placing in their hands knowledge of the provisions of the relevant legislation.
Collapse
Affiliation(s)
- H Bennett
- Prince of Wales Medical Research Institute, Sydney, New South Wales, Australia.
| | | |
Collapse
|