1
|
Abbasi R, Ackermann M, Adams J, Agarwalla SK, Aguilar JA, Ahlers M, Alameddine JM, Amin NM, Andeen K, Anton G, Argüelles C, Ashida Y, Athanasiadou S, Axani SN, Bai X, Balagopal VA, Baricevic M, Barwick SW, Basu V, Bay R, Beatty JJ, Becker Tjus J, Beise J, Bellenghi C, Benning C, BenZvi S, Berley D, Bernardini E, Besson DZ, Blaufuss E, Blot S, Bontempo F, Book JY, Boscolo Meneguolo C, Böser S, Botner O, Böttcher J, Bourbeau E, Braun J, Brinson B, Brostean-Kaiser J, Burley RT, Busse RS, Butterfield D, Campana MA, Carloni K, Carnie-Bronca EG, Chattopadhyay S, Chau N, Chen C, Chen Z, Chirkin D, Choi S, Clark BA, Classen L, Coleman A, Collin GH, Connolly A, Conrad JM, Coppin P, Correa P, Cowen DF, Dave P, De Clercq C, DeLaunay JJ, Delgado D, Deng S, Deoskar K, Desai A, Desiati P, de Vries KD, de Wasseige G, DeYoung T, Diaz A, Díaz-Vélez JC, Dittmer M, Domi A, Dujmovic H, DuVernois MA, Ehrhardt T, Eller P, Ellinger E, El Mentawi S, Elsässer D, Engel R, Erpenbeck H, Evans J, Evenson PA, Fan KL, Fang K, Farrag K, Fazely AR, Feigl N, Fiedlschuster S, Fienberg AT, Finley C, Fischer L, Fox D, Franckowiak A, Fritz A, Fürst P, Gallagher J, Ganster E, Garcia A, Gerhardt L, Ghadimi A, Glaser C, Glauch T, Glüsenkamp T, Goehlke N, Gonzalez JG, Goswami S, Grant D, Gray SJ, Gries O, Griffin S, Griswold S, Groth KM, Günther C, Gutjahr P, Haack C, Hallgren A, Halliday R, Halve L, Halzen F, Hamdaoui H, Ha Minh M, Hanson K, Hardin J, Harnisch AA, Hatch P, Haungs A, Helbing K, Hellrung J, Henningsen F, Heuermann L, Heyer N, Hickford S, Hidvegi A, Hill C, Hill GC, Hoffman KD, Hori S, Hoshina K, Hou W, Huber T, Hultqvist K, Hünnefeld M, Hussain R, Hymon K, In S, Ishihara A, Jacquart M, Janik O, Jansson M, Japaridze GS, Jeong M, Jin M, Jones BJP, Kang D, Kang W, Kang X, Kappes A, Kappesser D, Kardum L, Karg T, Karl M, Karle A, Katz U, Kauer M, Kelley JL, Khatee Zathul A, Kheirandish A, Kiryluk J, Klein SR, Kochocki A, Koirala R, Kolanoski H, Kontrimas T, Köpke L, Kopper C, Koskinen DJ, Koundal P, Kovacevich M, Kowalski M, Kozynets T, Krishnamoorthi J, Kruiswijk K, Krupczak E, Kumar A, Kun E, Kurahashi N, Lad N, Lagunas Gualda C, Lamoureux M, Larson MJ, Latseva S, Lauber F, Lazar JP, Lee JW, Leonard DeHolton K, Leszczyńska A, Lincetto M, Liu QR, Liubarska M, Lohfink E, Love C, Lozano Mariscal CJ, Lucarelli F, Luszczak W, Lyu Y, Madsen J, Mahn KBM, Makino Y, Manao E, Mancina S, Marie Sainte W, Mariş IC, Marka S, Marka Z, Marsee M, Martinez-Soler I, Maruyama R, Mayhew F, McElroy T, McNally F, Mead JV, Meagher K, Mechbal S, Medina A, Meier M, Merckx Y, Merten L, Micallef J, Mitchell J, Montaruli T, Moore RW, Morii Y, Morse R, Moulai M, Mukherjee T, Naab R, Nagai R, Nakos M, Naumann U, Necker J, Negi A, Neumann M, Niederhausen H, Nisa MU, Noell A, Novikov A, Nowicki SC, Obertacke Pollmann A, O'Dell V, Oehler M, Oeyen B, Olivas A, Orsoe R, Osborn J, O'Sullivan E, Pandya H, Pankova DV, Park N, Parker GK, Paudel EN, Paul L, Pérez de Los Heros C, Peterson J, Philippen S, Pizzuto A, Plum M, Pontén A, Popovych Y, Prado Rodriguez M, Pries B, Procter-Murphy R, Przybylski GT, Raab C, Rack-Helleis J, Rawlins K, Rechav Z, Rehman A, Reichherzer P, Renzi G, Resconi E, Reusch S, Rhode W, Riedel B, Rifaie A, Roberts EJ, Robertson S, Rodan S, Roellinghoff G, Rongen M, Rott C, Ruhe T, Ruohan L, Ryckbosch D, Safa I, Saffer J, Salazar-Gallegos D, Sampathkumar P, Sanchez Herrera SE, Sandrock A, Santander M, Sarkar S, Sarkar S, Savelberg J, Savina P, Schaufel M, Schieler H, Schindler S, Schlickmann L, Schlüter B, Schlüter F, Schmeisser N, Schmidt T, Schneider J, Schröder FG, Schumacher L, Schwefer G, Sclafani S, Seckel D, Seikh M, Seunarine S, Shah R, Sharma A, Shefali S, Shimizu N, Silva M, Skrzypek B, Smithers B, Snihur R, Soedingrekso J, Søgaard A, Soldin D, Soldin P, Sommani G, Spannfellner C, Spiczak GM, Stamatikos M, Stanev T, Stezelberger T, Stürwald T, Stuttard T, Sullivan GW, Taboada I, Ter-Antonyan S, Thiesmeyer M, Thompson WG, Thwaites J, Tilav S, Tollefson K, Tönnis C, Toscano S, Tosi D, Trettin A, Tung CF, Turcotte R, Twagirayezu JP, Ty B, Unland Elorrieta MA, Upadhyay AK, Upshaw K, Valtonen-Mattila N, Vandenbroucke J, van Eijndhoven N, Vannerom D, van Santen J, Vara J, Veitch-Michaelis J, Venugopal M, Vereecken M, Verpoest S, Veske D, Vijai A, Walck C, Weaver C, Weigel P, Weindl A, Weldert J, Wen AY, Wendt C, Werthebach J, Weyrauch M, Whitehorn N, Wiebusch CH, Willey N, Williams DR, Witthaus L, Wolf A, Wolf M, Wrede G, Xu XW, Yanez JP, Yildizci E, Yoshida S, Young R, Yu F, Yu S, Zhang Z, Zhelnin P, Zilberman P, Zimmerman M. Observation of Seven Astrophysical Tau Neutrino Candidates with IceCube. PHYSICAL REVIEW LETTERS 2024; 132:151001. [PMID: 38682982 DOI: 10.1103/physrevlett.132.151001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 02/15/2024] [Accepted: 02/29/2024] [Indexed: 05/01/2024]
Abstract
We report on a measurement of astrophysical tau neutrinos with 9.7 yr of IceCube data. Using convolutional neural networks trained on images derived from simulated events, seven candidate ν_{τ} events were found with visible energies ranging from roughly 20 TeV to 1 PeV and a median expected parent ν_{τ} energy of about 200 TeV. Considering backgrounds from astrophysical and atmospheric neutrinos, and muons from π^{±}/K^{±} decays in atmospheric air showers, we obtain a total estimated background of about 0.5 events, dominated by non-ν_{τ} astrophysical neutrinos. Thus, we rule out the absence of astrophysical ν_{τ} at the 5σ level. The measured astrophysical ν_{τ} flux is consistent with expectations based on previously published IceCube astrophysical neutrino flux measurements and neutrino oscillations.
Collapse
Affiliation(s)
- R Abbasi
- Department of Physics, Loyola University Chicago, Chicago, Illinois 60660, USA
| | - M Ackermann
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - J Adams
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - S K Agarwalla
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J A Aguilar
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - M Ahlers
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - J M Alameddine
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - N M Amin
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Andeen
- Department of Physics, Marquette University, Milwaukee, Wisconsin 53201, USA
| | - G Anton
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - C Argüelles
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Y Ashida
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
| | - S Athanasiadou
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - S N Axani
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - X Bai
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - V A Balagopal
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Baricevic
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S W Barwick
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - V Basu
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - R Bay
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - J J Beatty
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - J Becker Tjus
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Beise
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - C Bellenghi
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - C Benning
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S BenZvi
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - D Berley
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - E Bernardini
- Dipartimento di Fisica e Astronomia Galileo Galilei, Università Degli Studi di Padova, 35122 Padova PD, Italy
| | - D Z Besson
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA
| | - E Blaufuss
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Blot
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - F Bontempo
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - J Y Book
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - C Boscolo Meneguolo
- Dipartimento di Fisica e Astronomia Galileo Galilei, Università Degli Studi di Padova, 35122 Padova PD, Italy
| | - 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
| | - J Böttcher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E Bourbeau
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - J Braun
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B Brinson
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - J Brostean-Kaiser
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - R T Burley
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - R S Busse
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - D Butterfield
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M A Campana
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - K Carloni
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - E G Carnie-Bronca
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - S Chattopadhyay
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - N Chau
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - C Chen
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Z Chen
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - D Chirkin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S Choi
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - B A Clark
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - L Classen
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - A Coleman
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - G H Collin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Connolly
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - J M Conrad
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Coppin
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - P Correa
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - 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
| | - P Dave
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - C De Clercq
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - J J DeLaunay
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - D Delgado
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - S Deng
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Deoskar
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - A Desai
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - P Desiati
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K D de Vries
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - G de Wasseige
- Centre for Cosmology, Particle Physics and Phenomenology-CP3, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - T DeYoung
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Diaz
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J C Díaz-Vélez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Dittmer
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - A Domi
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - H Dujmovic
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M A DuVernois
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - T Ehrhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - P Eller
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - E Ellinger
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - S El Mentawi
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D Elsässer
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - R Engel
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
- Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, D-76021 Karlsruhe, Germany
| | - H Erpenbeck
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Evans
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - P A Evenson
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K L Fan
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - K Fang
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K Farrag
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - A R Fazely
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - N Feigl
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - S Fiedlschuster
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - A T Fienberg
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - C Finley
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - L Fischer
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - D Fox
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Franckowiak
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - A Fritz
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - P Fürst
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J Gallagher
- Department of Astronomy, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Ganster
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Garcia
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - L Gerhardt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Ghadimi
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - C Glaser
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - T Glauch
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - T Glüsenkamp
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - N Goehlke
- Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, D-76021 Karlsruhe, Germany
| | - J G Gonzalez
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Goswami
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - D Grant
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S J Gray
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - O Gries
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Griffin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S Griswold
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - K M Groth
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - C Günther
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - P Gutjahr
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - C Haack
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - A Hallgren
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - R Halliday
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L Halve
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - F Halzen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - H Hamdaoui
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - M Ha Minh
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - K Hanson
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Hardin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A A Harnisch
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - P Hatch
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - A Haungs
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - K Helbing
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Hellrung
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - F Henningsen
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - L Heuermann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - N Heyer
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - S Hickford
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - A Hidvegi
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - C Hill
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - G C Hill
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - K D Hoffman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Hori
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K Hoshina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - W Hou
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - T Huber
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - K Hultqvist
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Hünnefeld
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - R Hussain
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K Hymon
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S In
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - A Ishihara
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - M Jacquart
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - O Janik
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Jansson
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - G S Japaridze
- CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
| | - M Jeong
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - M Jin
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - B J P Jones
- Department of Physics, University of Texas at Arlington, 502 Yates St., Science Hall Rm 108, Box 19059, Arlington, Texas 76019, USA
| | - D Kang
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - W Kang
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - X Kang
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - A Kappes
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - D Kappesser
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - L Kardum
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Karg
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - M Karl
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - A Karle
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - U Katz
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J L Kelley
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - A Khatee Zathul
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - A Kheirandish
- Department of Physics & Astronomy, University of Nevada, Las Vegas, Nevada, 89154, USA
- Nevada Center for Astrophysics, University of Nevada, Las Vegas, Nevada 89154, USA
| | - J Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - S R Klein
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Kochocki
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Koirala
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - H Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - T Kontrimas
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - L Köpke
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Kopper
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - D J Koskinen
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - P Koundal
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - M Kovacevich
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - M Kowalski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - T Kozynets
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - J Krishnamoorthi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K Kruiswijk
- Centre for Cosmology, Particle Physics and Phenomenology-CP3, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - E Krupczak
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Kumar
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - E Kun
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - N Kurahashi
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - N Lad
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - C Lagunas Gualda
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - M Lamoureux
- Centre for Cosmology, Particle Physics and Phenomenology-CP3, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - M J Larson
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Latseva
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - F Lauber
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J P Lazar
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J W Lee
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K Leonard DeHolton
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Leszczyńska
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - M Lincetto
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - Q R Liu
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Liubarska
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - E Lohfink
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Love
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - C J Lozano Mariscal
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - F Lucarelli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - W Luszczak
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - Y Lyu
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Madsen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K B M Mahn
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - Y Makino
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E Manao
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - S Mancina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
- Dipartimento di Fisica e Astronomia Galileo Galilei, Università Degli Studi di Padova, 35122 Padova PD, Italy
| | - W Marie Sainte
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - I C Mariş
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - S Marka
- Columbia Astrophysics and Nevis Laboratories, Columbia University, New York, New York 10027, USA
| | - Z Marka
- Columbia Astrophysics and Nevis Laboratories, Columbia University, New York, New York 10027, USA
| | - M Marsee
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - I Martinez-Soler
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - R Maruyama
- Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - F Mayhew
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T McElroy
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - F McNally
- Department of Physics, Mercer University, Macon, Georgia 31207-0001, USA
| | - J V Mead
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - K Meagher
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S Mechbal
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - A Medina
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - M Meier
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - Y Merckx
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - L Merten
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - J Micallef
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Mitchell
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - T Montaruli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - R W Moore
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - Y Morii
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - R Morse
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Moulai
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - T Mukherjee
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - R Naab
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - R Nagai
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - M Nakos
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - U Naumann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Necker
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - A Negi
- Department of Physics, University of Texas at Arlington, 502 Yates St., Science Hall Rm 108, Box 19059, Arlington, Texas 76019, USA
| | - M Neumann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - H Niederhausen
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - M U Nisa
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Noell
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Novikov
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S C Nowicki
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Obertacke Pollmann
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - V O'Dell
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Oehler
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - B Oeyen
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - A Olivas
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - R Orsoe
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - J Osborn
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - E O'Sullivan
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - H Pandya
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D V Pankova
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - N Park
- Department of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - G K Parker
- Department of Physics, University of Texas at Arlington, 502 Yates St., Science Hall Rm 108, Box 19059, Arlington, Texas 76019, USA
| | - E N Paudel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - L Paul
- Department of Physics, Marquette University, Milwaukee, Wisconsin 53201, USA
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - C Pérez de Los Heros
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - J Peterson
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S Philippen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Pizzuto
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Plum
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - A Pontén
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - Y Popovych
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - M Prado Rodriguez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B Pries
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Procter-Murphy
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - G T Przybylski
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Raab
- Centre for Cosmology, Particle Physics and Phenomenology-CP3, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - J Rack-Helleis
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - K Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, Alaska 99508, USA
| | - Z Rechav
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - A Rehman
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - P Reichherzer
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - G Renzi
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - E Resconi
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - S Reusch
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - W Rhode
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - B Riedel
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - A Rifaie
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E J Roberts
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - S Robertson
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Rodan
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - G Roellinghoff
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - M Rongen
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - C Rott
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - T Ruhe
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - L Ruohan
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - D Ryckbosch
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - I Safa
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Saffer
- Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, D-76021 Karlsruhe, Germany
| | - D Salazar-Gallegos
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - P Sampathkumar
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - S E Sanchez Herrera
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Sandrock
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - M Santander
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - S Sarkar
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - S Sarkar
- Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - J Savelberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - P Savina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Schaufel
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - H Schieler
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - S Schindler
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - L Schlickmann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - B Schlüter
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - F Schlüter
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - N Schmeisser
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - T Schmidt
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - J Schneider
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - F G Schröder
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - L Schumacher
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - G Schwefer
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Sclafani
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - D Seckel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - M Seikh
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA
| | - S Seunarine
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - R Shah
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - A Sharma
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - S Shefali
- Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, D-76021 Karlsruhe, Germany
| | - N Shimizu
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - M Silva
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B Skrzypek
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - B Smithers
- Department of Physics, University of Texas at Arlington, 502 Yates St., Science Hall Rm 108, Box 19059, Arlington, Texas 76019, USA
| | - R Snihur
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Soedingrekso
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - A Søgaard
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - D Soldin
- Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, D-76021 Karlsruhe, Germany
| | - P Soldin
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - G Sommani
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - C Spannfellner
- Physik-department, Technische Universität München, D-85748 Garching, 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
| | - T Stezelberger
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Stürwald
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - T Stuttard
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - G W Sullivan
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - I Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - S Ter-Antonyan
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - M Thiesmeyer
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - W G Thompson
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J Thwaites
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S Tilav
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Tollefson
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Tönnis
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - S Toscano
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - D Tosi
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - A Trettin
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - C F Tung
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - R Turcotte
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - J P Twagirayezu
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Ty
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M A Unland Elorrieta
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - A K Upadhyay
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K Upshaw
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - N Valtonen-Mattila
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - J Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - N van Eijndhoven
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - D Vannerom
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J van Santen
- Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - J Vara
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - J Veitch-Michaelis
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Venugopal
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - M Vereecken
- Centre for Cosmology, Particle Physics and Phenomenology-CP3, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - S Verpoest
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D Veske
- Columbia Astrophysics and Nevis Laboratories, Columbia University, New York, New York 10027, USA
| | - A Vijai
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - C Walck
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - C Weaver
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - P Weigel
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Weindl
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - J Weldert
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Y Wen
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - C Wendt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Werthebach
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Weyrauch
- Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany
| | - N Whitehorn
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - C H Wiebusch
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - N Willey
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D R Williams
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - L Witthaus
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - A Wolf
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Wolf
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - G Wrede
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - X W Xu
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | - J P Yanez
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - E Yildizci
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - S Yoshida
- Department of Physics and The International Center for Hadron Astrophysics, Chiba University, Chiba 263-8522, Japan
| | - R Young
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA
| | - F Yu
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - S Yu
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - Z Zhang
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - P Zhelnin
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - P Zilberman
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Zimmerman
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| |
Collapse
|
2
|
Abbasi R, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Alameddine JM, Alispach C, Alves AA, Amin NM, Andeen K, Anderson T, Anton G, Argüelles C, Ashida Y, Axani S, Bai X, Balagopal V. A, Barbano A, Barwick SW, Bastian B, Basu V, Baur S, Bay R, Beatty JJ, Becker KH, Becker Tjus J, Bellenghi C, BenZvi S, Berley D, Bernardini E, Besson DZ, Binder G, Bindig D, Blaufuss E, Blot S, Boddenberg M, Bontempo F, Borowka J, Böser S, Botner O, Böttcher J, Bourbeau E, Bradascio F, Braun J, Brinson B, Bron S, Brostean-Kaiser J, Browne S, Burgman A, Burley RT, Busse RS, Campana MA, Carnie-Bronca EG, Chen C, Chen Z, Chirkin D, Choi K, Clark BA, Clark K, Classen L, Coleman A, Collin GH, Conrad JM, Coppin P, Correa P, Cowen DF, Cross R, Dappen C, Dave P, De Clercq C, DeLaunay JJ, Delgado López D, Dembinski H, Deoskar K, Desai A, Desiati P, de Vries KD, de Wasseige G, de With M, DeYoung T, Diaz A, Díaz-Vélez JC, Dittmer M, Dujmovic H, Dunkman M, DuVernois MA, Dvorak E, Ehrhardt T, Eller P, Engel R, Erpenbeck H, Evans J, Evenson PA, Fan KL, Fazely AR, Fedynitch A, Feigl N, Fiedlschuster S, Fienberg AT, Filimonov K, Finley C, Fischer L, Fox D, Franckowiak A, Friedman E, Fritz A, Fürst P, Gaisser TK, Gallagher J, Ganster E, Garcia A, Garrappa S, Gerhardt L, Ghadimi A, Glaser C, Glauch T, Glüsenkamp T, Goldschmidt A, Gonzalez JG, Goswami S, Grant D, Grégoire T, Griswold S, Günther C, Gutjahr P, Haack C, Hallgren A, Halliday R, Halve L, Halzen F, Ha Minh M, Hanson K, Hardin J, Harnisch AA, Haungs A, Hebecker D, Helbing K, Henningsen F, Hettinger EC, Hickford S, Hignight J, Hill C, Hill GC, Hoffman KD, Hoffmann R, Hokanson-Fasig B, Hoshina K, Huang F, Huber M, Huber T, Hultqvist K, Hünnefeld M, Hussain R, Hymon K, In S, Iovine N, Ishihara A, Jansson M, Japaridze GS, Jeong M, Jin M, Jones BJP, Kang D, Kang W, Kang X, Kappes A, Kappesser D, Kardum L, Karg T, Karl M, Karle A, Katz U, Kauer M, Kellermann M, Kelley JL, Kheirandish A, Kin K, Kintscher T, Kiryluk J, Klein SR, Koirala R, Kolanoski H, Kontrimas T, Köpke L, Kopper C, Kopper S, Koskinen DJ, Koundal P, Kovacevich M, Kowalski M, Kozynets T, Kun E, Kurahashi N, Lad N, Lagunas Gualda C, Lanfranchi JL, Larson MJ, Lauber F, Lazar JP, Lee JW, Leonard K, Leszczyńska A, Li Y, Lincetto M, Liu QR, Liubarska M, Lohfink E, Lozano Mariscal CJ, Lu L, Lucarelli F, Ludwig A, Luszczak W, Lyu Y, Ma WY, Madsen J, Mahn KBM, Makino Y, Mancina S, Mariş IC, Martinez-Soler I, Maruyama R, Mase K, McElroy T, McNally F, Mead JV, Meagher K, Mechbal S, Medina A, Meier M, Meighen-Berger S, Micallef J, Mockler D, Montaruli T, Moore RW, Morse R, Moulai M, Naab R, Nagai R, Nahnhauer R, Naumann U, Necker J, Nguyen LV, Niederhausen H, Nisa MU, Nowicki SC, Nygren D, Obertacke Pollmann A, Oehler M, Oeyen B, Olivas A, O’Sullivan E, Pandya H, Pankova DV, Park N, Parker GK, Paudel EN, Paul L, Pérez de los Heros C, Peters L, Peterson J, Philippen S, Pieper S, Pittermann M, Pizzuto A, Plum M, Popovych Y, Porcelli A, Prado Rodriguez M, Price PB, Pries B, Przybylski GT, Raab C, Rack-Helleis J, Raissi A, Rameez M, Rawlins K, Rea IC, Rehman A, Reichherzer P, Reimann R, Renzi G, Resconi E, Reusch S, Rhode W, Richman M, Riedel B, Roberts EJ, Robertson S, Roellinghoff G, Rongen M, Rott C, Ruhe T, Ryckbosch D, Rysewyk Cantu D, Safa I, Saffer J, Sanchez Herrera SE, Sandrock A, Sandroos J, Santander M, Sarkar S, Sarkar S, Satalecka K, Schaufel M, Schieler H, Schindler S, Schmidt T, Schneider A, Schneider J, Schröder FG, Schumacher L, Schwefer G, Sclafani S, Seckel D, Seunarine S, Sharma A, Shefali S, Silva M, Skrzypek B, Smithers B, Snihur R, Soedingrekso J, Soldin D, Spannfellner C, Spiczak GM, Spiering C, Stachurska J, Stamatikos M, Stanev T, Stein R, Stettner J, Steuer A, Stezelberger T, Stokstad R, Stürwald T, Stuttard T, Sullivan GW, Taboada I, Ter-Antonyan S, Tilav S, Tischbein F, Tollefson K, Tönnis C, Toscano S, Tosi D, Trettin A, Tselengidou M, Tung CF, Turcati A, Turcotte R, Turley CF, Twagirayezu JP, Ty B, Unland Elorrieta MA, Valtonen-Mattila N, Vandenbroucke J, van Eijndhoven N, Vannerom D, van Santen J, Verpoest S, Walck C, Watson TB, Weaver C, Weigel P, Weindl A, Weiss MJ, Weldert J, Wendt C, Werthebach J, Weyrauch M, Whitehorn N, Wiebusch CH, Williams DR, Wolf M, Woschnagg K, Wrede G, Wulff J, Xu XW, Yanez JP, Yoshida S, Yu S, Yuan T, Zhang Z, Zhelnin P. Evidence for neutrino emission from the nearby active galaxy NGC 1068. Science 2022; 378:538-543. [DOI: 10.1126/science.abg3395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A supermassive black hole, obscured by cosmic dust, powers the nearby active galaxy NGC 1068. Neutrinos, which rarely interact with matter, could provide information on the galaxy’s active core. We searched for neutrino emission from astrophysical objects using data recorded with the IceCube neutrino detector between 2011 and 2020. The positions of 110 known gamma-ray sources were individually searched for neutrino detections above atmospheric and cosmic backgrounds. We found that NGC 1068 has an excess of
79
−
20
+
22
neutrinos at tera–electron volt energies, with a global significance of 4.2σ, which we interpret as associated with the active galaxy. The flux of high-energy neutrinos that we measured from NGC 1068 is more than an order of magnitude higher than the upper limit on emissions of tera–electron volt gamma rays from this source.
Collapse
|
3
|
Soto AG, Zhelnin P, Safa I, Argüelles CA. Tau Appearance from High-Energy Neutrino Interactions. PHYSICAL REVIEW LETTERS 2022; 128:171101. [PMID: 35570425 DOI: 10.1103/physrevlett.128.171101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/29/2022] [Indexed: 06/15/2023]
Abstract
High-energy muon and electron neutrinos yield a non-negligible flux of tau neutrinos as they propagate through Earth. In this Letter, we address the impact of this additional component in the PeV and EeV energy regimes for the first time. Above 300 TeV, this contribution is predicted to be significantly larger than the atmospheric background, and it alters current and future neutrino telescopes' capabilities to discover a cosmic tau-neutrino flux. Further, we demonstrate that Earth-skimming neutrino experiments, designed to observe tau neutrinos, will be sensitive to cosmogenic neutrinos even in extreme scenarios without a primary tau-neutrino component.
Collapse
Affiliation(s)
- A Garcia Soto
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
- Instituto de Física Corpuscular (IFIC), Universitat de València (UV), 46980 Paterna, València, Spain
| | - P Zhelnin
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - I Safa
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - C A Argüelles
- Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts 02138, USA
| |
Collapse
|
4
|
Abstract
The search of the violation of Lorentz symmetry, or Lorentz violation (LV), is an active research field. The effects of LV are expected to be very small, and special systems are often used to search it. High-energy astrophysical neutrinos offer a unique system to search signatures of LV, due to the three factors: high neutrino energy, long propagation distance, and the presence of quantum mechanical interference. In this brief review, we introduce tests of LV and summarize existing searches of LV, using atmospheric and astrophysical neutrinos.
Collapse
|
5
|
Aartsen MG, Abbasi R, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Alispach C, Amin NM, Andeen K, Anderson T, Ansseau I, Anton G, Argüelles C, Auffenberg J, Axani S, Bagherpour H, Bai X, Balagopal A, Barbano A, Barwick SW, Bastian B, Basu V, Baum V, Baur S, Bay R, Beatty JJ, Becker KH, Becker Tjus J, BenZvi S, Berley D, Bernardini E, Besson DZ, Binder G, Bindig D, Blaufuss E, Blot S, Bohm C, Böser S, Botner O, Böttcher J, Bourbeau E, Bourbeau J, Bradascio F, Braun J, Bron S, Brostean-Kaiser J, Burgman A, Buscher J, Busse RS, Carver T, Chen C, Cheung E, Chirkin D, Choi S, Clark BA, Clark K, Classen L, Coleman A, Collin GH, Conrad JM, Coppin P, Correa P, Cowen DF, Cross R, Dave P, De Clercq C, DeLaunay JJ, Dembinski H, Deoskar K, De Ridder S, Desai A, Desiati P, de Vries KD, de Wasseige G, de With M, DeYoung T, Dharani S, Diaz A, Díaz-Vélez JC, Dujmovic H, Dunkman M, DuVernois MA, Dvorak E, Ehrhardt T, Eller P, Engel R, Evenson PA, Fahey S, Fazely AR, Fedynitch A, Felde J, Fienberg AT, Filimonov K, Finley C, Fox D, Franckowiak A, Friedman E, Fritz A, Gaisser TK, Gallagher J, Ganster E, Garrappa S, Gerhardt L, Glauch T, Glüsenkamp T, Goldschmidt A, Gonzalez JG, Grant D, Grégoire T, Griffith Z, Griswold S, Günder M, Gündüz M, Haack C, Hallgren A, Halliday R, Halve L, Halzen F, Hanson K, Hardin J, Haungs A, Hauser S, Hebecker D, Heereman D, Heix P, Helbing K, Hellauer R, Henningsen F, Hickford S, Hignight J, Hill GC, Hoffman KD, Hoffmann R, Hoinka T, Hokanson-Fasig B, Hoshina K, Huang F, Huber M, Huber T, Hultqvist K, Hünnefeld M, Hussain R, In S, Iovine N, Ishihara A, Jansson M, Japaridze GS, Jeong M, Jones BJP, Jonske F, Joppe R, Kang D, Kang W, Kappes A, Kappesser D, Karg T, Karl M, Karle A, Katz U, Kauer M, Kellermann M, Kelley JL, Kheirandish A, Kim J, Kintscher T, Kiryluk J, Kittler T, Klein SR, Koirala R, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen DJ, Koundal P, Kowalski M, Krings K, Krückl G, Kulacz N, Kurahashi N, Kyriacou A, Lanfranchi JL, Larson MJ, Lauber F, Lazar JP, Leonard K, Leszczyńska A, Li Y, Liu QR, Lohfink E, Lozano Mariscal CJ, Lu L, Lucarelli F, Ludwig A, Lünemann J, Luszczak W, Lyu Y, Ma WY, Madsen J, Maggi G, Mahn KBM, Makino Y, Mallik P, Mancina S, Mariş IC, Maruyama R, Mase K, Maunu R, McNally F, Meagher K, Medici M, Medina A, Meier M, Meighen-Berger S, Merz J, Meures T, Micallef J, Mockler D, Momenté G, Montaruli T, Moore RW, Morse R, Moulai M, Muth P, Nagai R, Naumann U, Neer G, Nguyen LV, Niederhausen H, Nisa MU, Nowicki SC, Nygren DR, Obertacke Pollmann A, Oehler M, Olivas A, O'Murchadha A, O'Sullivan E, Palczewski T, Pandya H, Pankova DV, Park N, Parker GK, Paudel EN, Peiffer P, Pérez de Los Heros C, Philippen S, Pieloth D, Pieper S, Pinat E, Pizzuto A, Plum M, Popovych Y, Porcelli A, Prado Rodriguez M, Price PB, Przybylski GT, Raab C, Raissi A, Rameez M, Rauch L, Rawlins K, Rea IC, Rehman A, Reimann R, Relethford B, Renschler M, Renzi G, Resconi E, Rhode W, Richman M, Riedel B, Robertson S, Rongen M, Rott C, Ruhe T, Ryckbosch D, Rysewyk Cantu D, Safa I, Sanchez Herrera SE, Sandrock A, Sandroos J, Santander M, Sarkar S, Sarkar S, Satalecka K, Scharf M, Schaufel M, Schieler H, Schlunder P, Schmidt T, Schneider A, Schneider J, Schröder FG, Schumacher L, Sclafani S, Seckel D, Seunarine S, Shefali S, Silva M, Smithers B, Snihur R, Soedingrekso J, Soldin D, Song M, Spiczak GM, Spiering C, Stachurska J, Stamatikos M, Stanev T, Stein R, Stettner J, Steuer A, Stezelberger T, Stokstad RG, Stößl A, Strotjohann NL, Stürwald T, Stuttard T, Sullivan GW, Taboada I, Tenholt F, Ter-Antonyan S, Terliuk A, Tilav S, Tollefson K, Tomankova L, Tönnis C, Toscano S, Tosi D, Trettin A, Tselengidou M, Tung CF, Turcati A, Turcotte R, Turley CF, Ty B, Unger E, Unland Elorrieta MA, Usner M, Vandenbroucke J, Van Driessche W, van Eijk D, van Eijndhoven N, Vannerom D, van Santen J, Verpoest S, Vraeghe M, Walck C, Wallace A, Wallraff M, Watson TB, Weaver C, Weindl A, Weiss MJ, Weldert J, Wendt C, Werthebach J, Whelan BJ, Whitehorn N, Wiebe K, Wiebusch CH, Williams DR, Wills L, Wolf M, Wood TR, Woschnagg K, Wrede G, Wulff J, Xu XW, Xu Y, Yanez JP, Yodh G, Yoshida S, Yuan T, Zhang Z, Zöcklein M. eV-Scale Sterile Neutrino Search Using Eight Years of Atmospheric Muon Neutrino Data from the IceCube Neutrino Observatory. PHYSICAL REVIEW LETTERS 2020; 125:141801. [PMID: 33064514 DOI: 10.1103/physrevlett.125.141801] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
The results of a 3+1 sterile neutrino search using eight years of data from the IceCube Neutrino Observatory are presented. A total of 305 735 muon neutrino events are analyzed in reconstructed energy-zenith space to test for signatures of a matter-enhanced oscillation that would occur given a sterile neutrino state with a mass-squared differences between 0.01 and 100 eV^{2}. The best-fit point is found to be at sin^{2}(2θ_{24})=0.10 and Δm_{41}^{2}=4.5 eV^{2}, which is consistent with the no sterile neutrino hypothesis with a p value of 8.0%.
Collapse
Affiliation(s)
- M G Aartsen
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - R Abbasi
- Department of Physics, Loyola University Chicago, Chicago, Illinois 60660, USA
| | | | - 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
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Ahrens
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - C Alispach
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - N M Amin
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Andeen
- Department of Physics, Marquette University, Milwaukee, Wisconsin 53201, USA
| | - T Anderson
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - I Ansseau
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - G Anton
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - C Argüelles
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Auffenberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Axani
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - H Bagherpour
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - X Bai
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - A Balagopal
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - A Barbano
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - S W Barwick
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | | | - V Basu
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - V Baum
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - S Baur
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - R Bay
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - J J Beatty
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - K-H Becker
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Becker Tjus
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - S BenZvi
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, 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
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Bindig
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - E Blaufuss
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Blot
- DESY, D-15738 Zeuthen, Germany
| | - C Bohm
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - 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
| | - J Böttcher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E Bourbeau
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - J Bourbeau
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - J Braun
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Bron
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | | | - A Burgman
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - J Buscher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - R S Busse
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - T Carver
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - C Chen
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - 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
| | - S Choi
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - B A Clark
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - K Clark
- SNOLAB, 1039 Regional Road 24, Creighton Mine 9, Lively, Ontario P3Y 1N2, Canada
| | - L Classen
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - A Coleman
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - G H Collin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J M Conrad
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Coppin
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - P Correa
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - 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
| | - R Cross
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - P Dave
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - C De Clercq
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - J J DeLaunay
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - H Dembinski
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Deoskar
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - S De Ridder
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - A Desai
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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 (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - G de Wasseige
- Vrije Universiteit Brussel (VUB), 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
| | - S Dharani
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Diaz
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J C Díaz-Vélez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - H Dujmovic
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - M Dunkman
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - M A DuVernois
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - E Dvorak
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - T Ehrhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - P Eller
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - R Engel
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - P A Evenson
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Fahey
- 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, Lousiana 70813, USA
| | - A Fedynitch
- Institute for Cosmic Ray Research, the University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8582, Japan
| | - J Felde
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A T Fienberg
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, 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
| | - D Fox
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | | | - E Friedman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Fritz
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, 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
| | - E Ganster
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | | | - L Gerhardt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Glauch
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - T Glüsenkamp
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - A Goldschmidt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J G Gonzalez
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D Grant
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T Grégoire
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Z Griffith
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Griswold
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - M Günder
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Gündüz
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - C Haack
- 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
| | - R Halliday
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L Halve
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - F Halzen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Hanson
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Hardin
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Haungs
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - S Hauser
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - 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
| | - P Heix
- 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
| | - F Henningsen
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - S Hickford
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Hignight
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - G C Hill
- Department of Physics, University of Adelaide, Adelaide 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
| | - T Hoinka
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - B Hokanson-Fasig
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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
| | - M Huber
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - T Huber
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
- DESY, D-15738 Zeuthen, Germany
| | - K Hultqvist
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Hünnefeld
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - R Hussain
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S In
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - N Iovine
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - A Ishihara
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - M Jansson
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - G S Japaridze
- CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
| | - M Jeong
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - B J P Jones
- Department of Physics, University of Texas at Arlington, 502 Yates Street, Science Hall Room 108, Box 19059, Arlington, Texas 76019, USA
| | - F Jonske
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - R Joppe
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D Kang
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - W Kang
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - A Kappes
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - D Kappesser
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Karg
- DESY, D-15738 Zeuthen, Germany
| | - M Karl
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - A Karle
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - U Katz
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Kellermann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - J L Kelley
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Kheirandish
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | | | - J Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - T Kittler
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - S R Klein
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R Koirala
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - H Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - L Köpke
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Kopper
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Kopper
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - D J Koskinen
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - P Koundal
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - M Kowalski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
- DESY, D-15738 Zeuthen, Germany
| | - K Krings
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - G Krückl
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - N Kulacz
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - N Kurahashi
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - A Kyriacou
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - J L Lanfranchi
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - M J Larson
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - F Lauber
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J P Lazar
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Leonard
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Leszczyńska
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - Y Li
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Q R Liu
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - E Lohfink
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C J Lozano Mariscal
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - L Lu
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - F Lucarelli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - A Ludwig
- Department of Physics and Astronomy, UCLA, Los Angeles, California 90095, USA
| | - J Lünemann
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - W Luszczak
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Y Lyu
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - W Y Ma
- DESY, D-15738 Zeuthen, Germany
| | - J Madsen
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - G Maggi
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - K B M Mahn
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - Y Makino
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - P Mallik
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Mancina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - I C Mariş
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - R Maruyama
- Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - K Mase
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - R Maunu
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - F McNally
- Department of Physics, Mercer University, Macon, Georgia 31207-0001, USA
| | - K Meagher
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Medici
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - A Medina
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - M Meier
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Meighen-Berger
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - J Merz
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - T Meures
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - J Micallef
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Mockler
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - G Momenté
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Montaruli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - R W Moore
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - R Morse
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Moulai
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Muth
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - R Nagai
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - U Naumann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - G Neer
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L V Nguyen
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - H Niederhausen
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - M U Nisa
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S C Nowicki
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D R Nygren
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | - M Oehler
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - A Olivas
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A O'Murchadha
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - E O'Sullivan
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - T Palczewski
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H Pandya
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D V Pankova
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - N Park
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - G K Parker
- Department of Physics, University of Texas at Arlington, 502 Yates Street, Science Hall Room 108, Box 19059, Arlington, Texas 76019, USA
| | - E N Paudel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - P Peiffer
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Pérez de Los Heros
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - S Philippen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D Pieloth
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Pieper
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - E Pinat
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - A Pizzuto
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Plum
- Department of Physics, Marquette University, Milwaukee, Wisconsin 53201, USA
| | - Y Popovych
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Porcelli
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - M Prado Rodriguez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - P B Price
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - G T Przybylski
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Raab
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - A Raissi
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - M Rameez
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - L Rauch
- DESY, D-15738 Zeuthen, Germany
| | - K Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, Alaska 99508, USA
| | - I C Rea
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - A Rehman
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - R Reimann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - B Relethford
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - M Renschler
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - G Renzi
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - E Resconi
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - W Rhode
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Richman
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - B Riedel
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Robertson
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Rongen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - T Ruhe
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - D Ryckbosch
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - D Rysewyk Cantu
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - I Safa
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S E Sanchez Herrera
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Sandrock
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - J Sandroos
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - M Santander
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - S Sarkar
- Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - S Sarkar
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | | | - M Scharf
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Schaufel
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - H Schieler
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - P Schlunder
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Schmidt
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Schneider
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Schneider
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - F G Schröder
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - L Schumacher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Sclafani
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - D Seckel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Seunarine
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - S Shefali
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Silva
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - B Smithers
- Department of Physics, University of Texas at Arlington, 502 Yates Street, Science Hall Room 108, Box 19059, Arlington, Texas 76019, USA
| | - R Snihur
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Soedingrekso
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - D Soldin
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - M Song
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - 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
| | - R Stein
- DESY, D-15738 Zeuthen, Germany
| | - J Stettner
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Steuer
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Stezelberger
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R G Stokstad
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Stößl
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | | | - T Stürwald
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - T Stuttard
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - G W Sullivan
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - I Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - F Tenholt
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - S Ter-Antonyan
- Department of Physics, Southern University, Baton Rouge, Lousiana 70813, USA
| | | | - S Tilav
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Tollefson
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L Tomankova
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - C Tönnis
- Institute of Basic Science, Sungkyunkwan University, Suwon 16419, Korea
| | - S Toscano
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - 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
| | - C F Tung
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - A Turcati
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - R Turcotte
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - C F Turley
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - B Ty
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - E Unger
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - M A Unland Elorrieta
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - M Usner
- DESY, D-15738 Zeuthen, Germany
| | - J Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - W Van Driessche
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - D van Eijk
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - N van Eijndhoven
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - D Vannerom
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | - S Verpoest
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - 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
| | - A Wallace
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - M Wallraff
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - T B Watson
- Department of Physics, University of Texas at Arlington, 502 Yates Street, Science Hall Room 108, Box 19059, Arlington, Texas 76019, USA
| | - C Weaver
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - A Weindl
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - M J Weiss
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J Weldert
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Wendt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Werthebach
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - B J Whelan
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - N Whitehorn
- Department of Physics and Astronomy, UCLA, Los Angeles, California 90095, USA
| | - 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
| | - L Wills
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - M Wolf
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - 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
| | - G Wrede
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - J Wulff
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - X W Xu
- Department of Physics, Southern University, Baton Rouge, Lousiana 70813, USA
| | - Y Xu
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - J P Yanez
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - G Yodh
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - S Yoshida
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - T Yuan
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Z Zhang
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - M Zöcklein
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| |
Collapse
|
6
|
Aartsen MG, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Alispach C, Andeen K, Anderson T, Ansseau I, Anton G, Argüelles C, Auffenberg J, Axani S, Backes P, Bagherpour H, Bai X, Balagopal V A, Barbano A, Barwick SW, Bastian B, Baum V, Baur S, Bay R, Beatty JJ, Becker KH, Becker Tjus J, BenZvi S, Berley D, Bernardini E, Besson DZ, Binder G, Bindig D, Blaufuss E, Blot S, Bohm C, Böser S, Botner O, Böttcher J, Bourbeau E, Bourbeau J, Bradascio F, Braun J, Bron S, Brostean-Kaiser J, Burgman A, Buscher J, Busse RS, Carver T, Chen C, Cheung E, Chirkin D, Choi S, Clark K, Classen L, Coleman A, Collin GH, Conrad JM, Coppin P, Correa P, Cowen DF, Cross R, Dave P, De Clercq C, DeLaunay JJ, Dembinski H, Deoskar K, De Ridder S, Desiati P, de Vries KD, de Wasseige G, de With M, DeYoung T, Diaz A, Díaz-Vélez JC, Dujmovic H, Dunkman M, Dvorak E, Eberhardt B, Ehrhardt T, Eller P, Engel R, Evenson PA, Fahey S, Fazely AR, Felde J, Filimonov K, Finley C, Fox D, Franckowiak A, Friedman E, Fritz A, Gaisser TK, Gallagher J, Ganster E, Garrappa S, Gerhardt L, Ghorbani K, Glauch T, Glüsenkamp T, Goldschmidt A, Gonzalez JG, Grant D, Grégoire T, Griffith Z, Griswold S, Günder M, Gündüz M, Haack C, Hallgren A, Halliday R, Halve L, Halzen F, Hanson K, Haungs A, Hebecker D, Heereman D, Heix P, Helbing K, Hellauer R, Henningsen F, Hickford S, Hignight J, Hill GC, Hoffman KD, Hoffmann R, Hoinka T, Hokanson-Fasig B, Hoshina K, Huang F, Huber M, Huber T, Hultqvist K, Hünnefeld M, Hussain R, In S, Iovine N, Ishihara A, Jansson M, Japaridze GS, Jeong M, Jero K, Jones BJP, Jonske F, Joppe R, Kang D, Kang W, Kappes A, Kappesser D, Karg T, Karl M, Karle A, Katz U, Kauer M, Kelley JL, Kheirandish A, Kim J, Kintscher T, Kiryluk J, Kittler T, Klein SR, Koirala R, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Krings K, Krückl G, Kulacz N, Kurahashi N, Kyriacou A, Lanfranchi JL, Larson MJ, Lauber F, Lazar JP, Leonard K, Lesiak-Bzdak M, Leszczyńska A, Leuermann M, Liu QR, Lohfink E, Lozano Mariscal CJ, Lu L, Lucarelli F, Lünemann J, Luszczak W, Lyu Y, Ma WY, Madsen J, Maggi G, Mahn KBM, Makino Y, Mallik P, Mallot K, Mancina S, Mariş IC, Maruyama R, Mase K, Maunu R, McNally F, Meagher K, Medici M, Medina A, Meier M, Meighen-Berger S, Merino G, Meures T, Micallef J, Mockler D, Momenté G, Montaruli T, Moore RW, Morse R, Moulai M, Muth P, Nagai R, Naumann U, Neer G, Niederhausen H, Nisa MU, Nowicki SC, Nygren DR, Obertacke Pollmann A, Oehler M, Olivas A, O'Murchadha A, O'Sullivan E, Palczewski T, Pandya H, Pankova DV, Park N, Peiffer P, Pérez de Los Heros C, Philippen S, Pieloth D, Pieper S, Pinat E, Pizzuto A, Plum M, Porcelli A, Price PB, Przybylski GT, Raab C, Raissi A, Rameez M, Rauch L, Rawlins K, Rea IC, Rehman A, Reimann R, Relethford B, Renschler M, Renzi G, Resconi E, Rhode W, Richman M, Robertson S, Rongen M, Rott C, Ruhe T, Ryckbosch D, Rysewyk D, Safa I, Sanchez Herrera SE, Sandrock A, Sandroos J, Santander M, Sarkar S, Sarkar S, Satalecka K, Schaufel M, Schieler H, Schlunder P, Schmidt T, Schneider A, Schneider J, Schröder FG, Schumacher L, Sclafani S, Seckel D, Seunarine S, Shefali S, Silva M, Snihur R, Soedingrekso J, Soldin D, Song M, Spiczak GM, Spiering C, Stachurska J, Stamatikos M, Stanev T, Stein R, Stettner J, Steuer A, Stezelberger T, Stokstad RG, Stößl A, Strotjohann NL, Stürwald T, Stuttard T, Sullivan GW, Taboada I, Tenholt F, Ter-Antonyan S, Terliuk A, Tilav S, Tollefson K, Tomankova L, Tönnis C, Toscano S, Tosi D, Trettin A, Tselengidou M, Tung CF, Turcati A, Turcotte R, Turley CF, Ty B, Unger E, Unland Elorrieta MA, Usner M, Vandenbroucke J, Van Driessche W, van Eijk D, van Eijndhoven N, van Santen J, Verpoest S, Vraeghe M, Walck C, Wallace A, Wallraff M, Wandkowsky N, Watson TB, Weaver C, Weindl A, Weiss MJ, Weldert J, Wendt C, Werthebach J, Whelan BJ, Whitehorn N, Wiebe K, Wiebusch CH, Wille L, Williams DR, Wills L, Wolf M, Wood J, Wood TR, Woschnagg K, Wrede G, Xu DL, Xu XW, Xu Y, Yanez JP, Yodh G, Yoshida S, Yuan T, Zöcklein M. Characteristics of the Diffuse Astrophysical Electron and Tau Neutrino Flux with Six Years of IceCube High Energy Cascade Data. PHYSICAL REVIEW LETTERS 2020; 125:121104. [PMID: 33016752 DOI: 10.1103/physrevlett.125.121104] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 06/02/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
We report on the first measurement of the astrophysical neutrino flux using particle showers (cascades) in IceCube data from 2010-2015. Assuming standard oscillations, the astrophysical neutrinos in this dedicated cascade sample are dominated (∼90%) by electron and tau flavors. The flux, observed in the sensitive energy range from 16 TeV to 2.6 PeV, is consistent with a single power-law model as expected from Fermi-type acceleration of high energy particles at astrophysical sources. We find the flux spectral index to be γ=2.53±0.07 and a flux normalization for each neutrino flavor of ϕ_{astro}=1.66_{-0.27}^{+0.25} at E_{0}=100 TeV, in agreement with IceCube's complementary muon neutrino results and with all-neutrino flavor fit results. In the measured energy range we reject spectral indices γ≤2.28 at ≥3σ significance level. Because of high neutrino energy resolution and low atmospheric neutrino backgrounds, this analysis provides the most detailed characterization of the neutrino flux at energies below ∼100 TeV compared to previous IceCube results. Results from fits assuming more complex neutrino flux models suggest a flux softening at high energies and a flux hardening at low energies (p value ≥0.06). The sizable and smooth flux measured below ∼100 TeV remains a puzzle. In order to not violate the isotropic diffuse gamma-ray background as measured by the Fermi Large Area Telescope, it suggests the existence of astrophysical neutrino sources characterized by dense environments which are opaque to gamma rays.
Collapse
Affiliation(s)
- M G Aartsen
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | | | - 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
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Ahrens
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - C Alispach
- Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - K Andeen
- Department of Physics, Marquette University, Milwaukee, Wisconsin, 53201, USA
| | - T Anderson
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - I Ansseau
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - G Anton
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - C Argüelles
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Auffenberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Axani
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Backes
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - H Bagherpour
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - X Bai
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - A Balagopal V
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - A Barbano
- Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - 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
| | - S Baur
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - R Bay
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - J J Beatty
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - K-H Becker
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Becker Tjus
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - S BenZvi
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, 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
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Bindig
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - E Blaufuss
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Blot
- DESY, D-15738 Zeuthen, Germany
| | - C Bohm
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - 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
| | - J Böttcher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - E Bourbeau
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - J Bourbeau
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - J Braun
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Bron
- Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | | | - A Burgman
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - J Buscher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - R S Busse
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - T Carver
- Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - C Chen
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - 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
| | - S Choi
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K Clark
- SNOLAB, 1039 Regional Road 24, Creighton Mine 9, Lively, Ontario, Canada P3Y 1N2
| | - L Classen
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - A Coleman
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - G H Collin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J M Conrad
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Coppin
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - P Correa
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - 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
| | - R Cross
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - P Dave
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - C De Clercq
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - J J DeLaunay
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - H Dembinski
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Deoskar
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - 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 (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - G de Wasseige
- Vrije Universiteit Brussel (VUB), 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
| | - A Diaz
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J C Díaz-Vélez
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - H Dujmovic
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - M Dunkman
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - E Dvorak
- Physics Department, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - B Eberhardt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T Ehrhardt
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - P Eller
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - R Engel
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - P A Evenson
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Fahey
- 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
| | - 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
| | - D Fox
- Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | | | - E Friedman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Fritz
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, 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
| | - E Ganster
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | | | - L Gerhardt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - K Ghorbani
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T Glauch
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - T Glüsenkamp
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - A Goldschmidt
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J G Gonzalez
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D Grant
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T Grégoire
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Z Griffith
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Griswold
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - M Günder
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Gündüz
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - C Haack
- 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
| | - R Halliday
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L Halve
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - F Halzen
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Hanson
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - A Haungs
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - 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
| | - P Heix
- 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
| | - F Henningsen
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - S Hickford
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Hignight
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - G C Hill
- Department of Physics, University of Adelaide, Adelaide, 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
| | - T Hoinka
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - B Hokanson-Fasig
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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
| | - M Huber
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - T Huber
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
- DESY, D-15738 Zeuthen, Germany
| | - K Hultqvist
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Hünnefeld
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - R Hussain
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S In
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - N Iovine
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - A Ishihara
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - M Jansson
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - G S Japaridze
- CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
| | - M Jeong
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K Jero
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - B J P Jones
- Department of Physics, University of Texas at Arlington, 502 Yates Street, Science Hall Rm 108, Box 19059, Arlington, Texas 76019, USA
| | - F Jonske
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - R Joppe
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D Kang
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - W Kang
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - A Kappes
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - D Kappesser
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Karg
- DESY, D-15738 Zeuthen, Germany
| | - M Karl
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - A Karle
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - U Katz
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - 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 Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | | | - J Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - T Kittler
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - S R Klein
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R Koirala
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - H Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - L Köpke
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Kopper
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Kopper
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - 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-15738 Zeuthen, Germany
| | - K Krings
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - G Krückl
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - N Kulacz
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - N Kurahashi
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - A Kyriacou
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - J L Lanfranchi
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - M J Larson
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - F Lauber
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J P Lazar
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - K Leonard
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Lesiak-Bzdak
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - A Leszczyńska
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - M Leuermann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - Q R Liu
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - E Lohfink
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C J Lozano Mariscal
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - L Lu
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - F Lucarelli
- Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - J Lünemann
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - W Luszczak
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Y Lyu
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - W Y Ma
- DESY, D-15738 Zeuthen, Germany
| | - J Madsen
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - G Maggi
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | - K B M Mahn
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - Y Makino
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - P Mallik
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Mallot
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S Mancina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - I C Mariş
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - R Maruyama
- Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - K Mase
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - R Maunu
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - F McNally
- Department of Physics, Mercer University, Macon, Georgia 31207-0001, USA
| | - K Meagher
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Medici
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - A Medina
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - M Meier
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Meighen-Berger
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - G Merino
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T Meures
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - J Micallef
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Mockler
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - G Momenté
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Montaruli
- Département de Physique Nucléaire et Corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - R W Moore
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - R Morse
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Moulai
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Muth
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - R Nagai
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - U Naumann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - G Neer
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - H Niederhausen
- Physik-department, Technische Universität München, D-85748 Garching, Germany
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - M U Nisa
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S C Nowicki
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D R Nygren
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | - M Oehler
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - A Olivas
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A O'Murchadha
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - E O'Sullivan
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - T Palczewski
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H Pandya
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D V Pankova
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - N Park
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - P Peiffer
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Pérez de Los Heros
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - S Philippen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D Pieloth
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - S Pieper
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - E Pinat
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - A Pizzuto
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Plum
- Department of Physics, Marquette University, Milwaukee, Wisconsin, 53201, USA
| | - A Porcelli
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - P B Price
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - G T Przybylski
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Raab
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - A Raissi
- Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - M Rameez
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - L Rauch
- DESY, D-15738 Zeuthen, Germany
| | - K Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, Alaska 99508, USA
| | - I C Rea
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - A Rehman
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - R Reimann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - B Relethford
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - M Renschler
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - G Renzi
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - E Resconi
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - W Rhode
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Richman
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - S Robertson
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Rongen
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - T Ruhe
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - D Ryckbosch
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - D Rysewyk
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - I Safa
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S E Sanchez Herrera
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Sandrock
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - J Sandroos
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - M Santander
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - S Sarkar
- Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - S Sarkar
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | | | - M Schaufel
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - H Schieler
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - P Schlunder
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Schmidt
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A Schneider
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Schneider
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - F G Schröder
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - L Schumacher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Sclafani
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - D Seckel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Seunarine
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - S Shefali
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Silva
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - R Snihur
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Soedingrekso
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - D Soldin
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - M Song
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - 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
| | - R Stein
- DESY, D-15738 Zeuthen, Germany
| | - J Stettner
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Steuer
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - T Stezelberger
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R G Stokstad
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Stößl
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | | | - T Stürwald
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - T Stuttard
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - G W Sullivan
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - I Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - F Tenholt
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - S Ter-Antonyan
- Department of Physics, Southern University, Baton Rouge, Louisiana 70813, USA
| | | | - S Tilav
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - K Tollefson
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L Tomankova
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - C Tönnis
- Institute of Basic Science, Sungkyunkwan University, Suwon 16419, Korea
| | - S Toscano
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - 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
| | - C F Tung
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - A Turcati
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - R Turcotte
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - C F Turley
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - B Ty
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - E Unger
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - M A Unland Elorrieta
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - M Usner
- DESY, D-15738 Zeuthen, Germany
| | - J Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - W Van Driessche
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - D van Eijk
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - N van Eijndhoven
- Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium
| | | | - S Verpoest
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - 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
| | - A Wallace
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - M Wallraff
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - N Wandkowsky
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - T B Watson
- Department of Physics, University of Texas at Arlington, 502 Yates Street, Science Hall Rm 108, Box 19059, Arlington, Texas 76019, USA
| | - C Weaver
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - A Weindl
- Karlsruhe Institute of Technology, Institut für Kernphysik, D-76021 Karlsruhe, Germany
| | - M J Weiss
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - J Weldert
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Wendt
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J Werthebach
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - B J Whelan
- Department of Physics, University of Adelaide, Adelaide, 5005, Australia
| | - N Whitehorn
- Department of Physics and Astronomy, UCLA, Los Angeles, California 90095, USA
| | - 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
| | - L Wille
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - D R Williams
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - L Wills
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - M Wolf
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - J Wood
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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
| | - G Wrede
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - D L Xu
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, 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
| | - J P Yanez
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - G Yodh
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - S Yoshida
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - T Yuan
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Zöcklein
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| |
Collapse
|
7
|
|
8
|
Somogyi G, Nándori I, Jentschura U. Neutrino splitting for Lorentz-violating neutrinos: Detailed analysis. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.035036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
9
|
Bustamante M, Ahlers M. Inferring the Flavor of High-Energy Astrophysical Neutrinos at Their Sources. PHYSICAL REVIEW LETTERS 2019; 122:241101. [PMID: 31322385 DOI: 10.1103/physrevlett.122.241101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/08/2019] [Indexed: 06/10/2023]
Abstract
The sources and production mechanisms of high-energy astrophysical neutrinos are largely unknown. A promising opportunity for progress lies in the study of neutrino flavor composition, i.e., the proportion of each flavor in the flux of neutrinos, which reflects the physical conditions at the sources. To seize it, we introduce a Bayesian method that infers the flavor composition at the neutrino sources based on the flavor composition measured at Earth. We find that the present data from the IceCube neutrino telescope favor neutrino production via the decay of high-energy pions and rule out production via the decay of neutrons. In the future, improved measurements of flavor composition and mixing parameters may single out the production mechanism with high significance.
Collapse
Affiliation(s)
- Mauricio Bustamante
- Niels Bohr International Academy and Discovery Centre, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
- DARK, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Markus Ahlers
- Niels Bohr International Academy and Discovery Centre, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| |
Collapse
|
10
|
Li SW, Bustamante M, Beacom JF. Echo Technique to Distinguish Flavors of Astrophysical Neutrinos. PHYSICAL REVIEW LETTERS 2019; 122:151101. [PMID: 31050546 DOI: 10.1103/physrevlett.122.151101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 02/10/2019] [Indexed: 06/09/2023]
Abstract
The flavor composition of high-energy astrophysical neutrinos is a rich observable. However, present analyses cannot effectively distinguish particle showers induced by ν_{e} vs ν_{τ}. We show that this can be accomplished by measuring the intensities of the delayed, collective light emission from muon decays and neutron captures, which are, on average, greater for ν_{τ} than for ν_{e}. This new technique would significantly improve tests of the nature of astrophysical sources and of neutrino properties. We discuss the promising prospects for implementing it in IceCube and other detectors.
Collapse
Affiliation(s)
- Shirley Weishi Li
- Center for Cosmology and AstroParticle Physics (CCAPP), Ohio State University, Columbus, Ohio 43210
- Department of Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - Mauricio Bustamante
- Center for Cosmology and AstroParticle Physics (CCAPP), Ohio State University, Columbus, Ohio 43210
- Department of Physics, Ohio State University, Columbus, Ohio 43210, USA
| | - John F Beacom
- Center for Cosmology and AstroParticle Physics (CCAPP), Ohio State University, Columbus, Ohio 43210
- Department of Physics, Ohio State University, Columbus, Ohio 43210, USA
- Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA
| |
Collapse
|
11
|
Farzan Y, Palomares-Ruiz S. Flavor of cosmic neutrinos preserved by ultralight dark matter. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.99.051702] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
12
|
Abstract
IceCube currently is the largest neutrino observatory with an instrumented detection volume of 1 km3 buried in the ice-sheet close to the antarctic South Pole station. With a 4 π field of view and an up-time of >99%, it is continuously monitoring the full sky to detect astrophysical neutrinos. With the detection of an astrophysical neutrino flux in 2013, IceCube opened a new observation window to the non-thermal Universe. The IceCube collaboration has a large program to search for astrophysical neutrinos, including measurements of the energy spectrum of the diffuse astrophysical flux, auto- and cross-correlation studies with other multi-messenger particles, and a real-time alert and follow-up system. On 22 September 2017, the IceCube online system sent out an alert reporting a high-energy neutrino event. This alert triggered a series of multi-wavelength follow-up observations that revealed a spatially-coincident blazar TXS 0506+056, which was also in an active flaring state. This correlation was estimated at a 3 σ level. Further observations confirmed the flaring emission in the very-high-energy gamma-ray band. In addition, IceCube found an independent 3.5 σ excess of a time-variable neutrino flux in the direction of TXS 0506+056 two years prior to the alert by examining 9.5 years of archival neutrino data. These are the first multi-messenger observations of an extra-galactic astrophysical source including neutrinos since the observation of the supernova SN1987A. This review summarizes the different detection and analysis channels for astrophysical neutrinos in IceCube, focusing on the multi-messenger program of IceCube and its major scientific results.
Collapse
|
13
|
Bustamante M, Agarwalla SK. Universe's Worth of Electrons to Probe Long-Range Interactions of High-Energy Astrophysical Neutrinos. PHYSICAL REVIEW LETTERS 2019; 122:061103. [PMID: 30822075 DOI: 10.1103/physrevlett.122.061103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 01/09/2019] [Indexed: 06/09/2023]
Abstract
Astrophysical searches for new long-range interactions complement collider searches for new short-range interactions. Conveniently, neutrino flavor oscillations are keenly sensitive to the existence of long-ranged flavored interactions between neutrinos and electrons, motivated by lepton-number symmetries of the standard model. For the first time, we probe them using TeV-PeV astrophysical neutrinos and accounting for all large electron repositories in the local and distant Universe. The high energies and colossal number of electrons grant us unprecedented sensitivity to the new interaction, even if it is extraordinarily feeble. Based on IceCube results for the flavor composition of astrophysical neutrinos, we set the ultimate bounds on long-range neutrino flavored interactions.
Collapse
Affiliation(s)
- Mauricio Bustamante
- Niels Bohr International Academy and Discovery Center, Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark
| | - Sanjib Kumar Agarwalla
- Institute of Physics, Sachivalaya Marg, Sainik School Post, Bhubaneswar 751005, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400085, India
- International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
| |
Collapse
|
14
|
Bustamante M, Connolly A. Extracting the Energy-Dependent Neutrino-Nucleon Cross Section above 10 TeV Using IceCube Showers. PHYSICAL REVIEW LETTERS 2019; 122:041101. [PMID: 30768285 DOI: 10.1103/physrevlett.122.041101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Neutrinos are key to probing the deep structure of matter and the high-energy Universe. Yet, until recently, their interactions had only been measured at laboratory energies up to about 350 GeV. An opportunity to measure their interactions at higher energies opened up with the detection of high-energy neutrinos in IceCube, partially of astrophysical origin. Scattering off matter inside Earth affects the distribution of their arrival directions-from this, we extract the neutrino-nucleon cross section at energies from 18 TeV to 2 PeV, in four energy bins, in spite of uncertainties in the neutrino flux. Using six years of public IceCube High-Energy Starting Events, we explicitly show for the first time that the energy dependence of the cross section above 18 TeV agrees with the predicted softer-than-linear dependence, and reaffirm the absence of new physics that would make the cross section rise sharply, up to a center-of-mass energy sqrt[s]≈1 TeV.
Collapse
Affiliation(s)
- Mauricio Bustamante
- Niels Bohr International Academy & Discovery Centre, Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark
- Center for Cosmology and AstroParticle Physics (CCAPP), The Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - Amy Connolly
- Center for Cosmology and AstroParticle Physics (CCAPP), The Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| |
Collapse
|
15
|
|
16
|
|
17
|
Aartsen MG, Abraham K, Ackermann M, Adams J, Aguilar JA, Ahlers M, Ahrens M, Altmann D, Andeen K, Anderson T, Ansseau I, Anton G, Archinger M, Argüelles C, Auffenberg J, Axani S, 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, Blot S, Bohm C, Börner M, Bos F, Bose D, Böser S, Botner O, Braun J, Brayeur L, Bretz HP, Burgman A, Carver T, Casier M, Cheung E, Chirkin D, Christov A, Clark K, Classen L, Coenders S, Collin GH, Conrad JM, Cowen DF, Cross R, Day M, de André JPAM, De Clercq C, Del Pino Rosendo E, Dembinski H, De Ridder S, Desiati P, de Vries KD, de Wasseige G, de With M, DeYoung T, Díaz-Vélez JC, di Lorenzo V, Dujmovic H, Dumm JP, Dunkman M, Eberhardt B, Ehrhardt T, Eichmann B, Eller P, Euler S, Evenson PA, Fahey S, Fazely AR, Feintzeig J, Felde J, Filimonov K, Finley C, Flis S, Fösig CC, Franckowiak A, Friedman E, Fuchs T, Gaisser TK, Gallagher J, Gerhardt L, Ghorbani K, Giang W, Gladstone L, Glagla M, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez JG, Grant D, Griffith Z, Haack C, Haj Ismail A, Hallgren A, Halzen F, Hansen E, Hansmann B, Hansmann T, Hanson K, Hebecker D, Heereman D, Helbing K, Hellauer R, Hickford S, Hignight J, Hill GC, Hoffman KD, Hoffmann R, Holzapfel K, Hoshina K, Huang F, Huber M, Hultqvist K, In S, Ishihara A, Jacobi E, Japaridze GS, Jeong M, Jero K, Jones BJP, Jurkovic M, Kappes A, Karg T, Karle A, Katz U, Kauer M, Keivani A, Kelley JL, Kemp J, Kheirandish A, Kim M, Kintscher T, Kiryluk J, Kittler T, Klein SR, Kohnen G, Koirala R, Kolanoski H, Konietz R, Köpke L, Kopper C, Kopper S, Koskinen DJ, Kowalski M, Krings K, Kroll M, Krückl G, Krüger C, Kunnen J, Kunwar S, Kurahashi N, Kuwabara T, Labare M, Lanfranchi JL, Larson MJ, Lauber F, Lennarz D, Lesiak-Bzdak M, Leuermann M, Leuner J, Lu L, Lünemann J, Madsen J, Maggi G, Mahn KBM, Mancina S, Mandelartz M, Maruyama R, Mase K, Maunu R, McNally F, Meagher K, Medici M, Meier M, Meli A, Menne T, Merino G, Meures T, Miarecki S, Mohrmann L, Montaruli T, Moulai M, Nahnhauer R, Naumann U, Neer G, Niederhausen H, Nowicki SC, Nygren DR, Obertacke Pollmann A, Olivas A, O'Murchadha A, Palczewski T, Pandya H, Pankova DV, Penek Ö, Pepper JA, Pérez de Los Heros C, Pieloth D, Pinat E, Price PB, Przybylski GT, Quinnan M, Raab C, Rädel L, Rameez M, Rawlins K, Reimann R, Relethford B, Relich M, Resconi E, Rhode W, Richman M, Riedel B, Robertson S, Rongen M, Rott C, Ruhe T, Ryckbosch D, Rysewyk D, Sabbatini L, Sanchez Herrera SE, Sandrock A, Sandroos J, Sarkar S, Satalecka K, Schimp M, Schlunder P, Schmidt T, Schoenen S, Schöneberg S, Schumacher L, Seckel D, Seunarine S, Soldin D, Song M, Spiczak GM, Spiering C, Stahlberg M, Stanev T, Stasik A, Steuer A, Stezelberger T, Stokstad RG, Stößl A, Ström R, Strotjohann NL, Sullivan GW, Sutherland M, Taavola H, Taboada I, Tatar J, Tenholt F, Ter-Antonyan S, Terliuk A, Tešić G, Tilav S, Toale PA, Tobin MN, Toscano S, Tosi D, Tselengidou M, Turcati A, Unger E, Usner M, Vandenbroucke J, van Eijndhoven N, Vanheule S, van Rossem M, van Santen J, Veenkamp J, Vehring M, Voge M, Vraeghe M, Walck C, Wallace A, Wallraff M, Wandkowsky N, Weaver C, Weiss MJ, Wendt C, Westerhoff S, Whelan BJ, Wickmann S, Wiebe K, Wiebusch CH, Wille L, Williams DR, Wills L, Wolf M, Wood TR, Woolsey E, Woschnagg K, Xu DL, Xu XW, Xu Y, Yanez JP, Yodh G, Yoshida S, Zoll M. Constraints on Ultrahigh-Energy Cosmic-Ray Sources from a Search for Neutrinos above 10 PeV with IceCube. PHYSICAL REVIEW LETTERS 2016; 117:241101. [PMID: 28009216 DOI: 10.1103/physrevlett.117.241101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Indexed: 06/06/2023]
Abstract
We report constraints on the sources of ultrahigh-energy cosmic rays (UHECRs) above 10^{9} GeV, based on an analysis of seven years of IceCube data. This analysis efficiently selects very high- energy neutrino-induced events which have deposited energies from 5×10^{5} GeV to above 10^{11} GeV. Two neutrino-induced events with an estimated deposited energy of (2.6±0.3)×10^{6} GeV, the highest neutrino energy observed so far, and (7.7±2.0)×10^{5} GeV were detected. The atmospheric background-only hypothesis of detecting these events is rejected at 3.6σ. The hypothesis that the observed events are of cosmogenic origin is also rejected at >99% CL because of the limited deposited energy and the nonobservation of events at higher energy, while their observation is consistent with an astrophysical origin. Our limits on cosmogenic neutrino fluxes disfavor the UHECR sources having a cosmological evolution stronger than the star formation rate, e.g., active galactic nuclei and γ-ray bursts, assuming proton-dominated UHECRs. Constraints on UHECR sources including mixed and heavy UHECR compositions are obtained for models of neutrino production within UHECR sources. Our limit disfavors a significant part of parameter space for active galactic nuclei and new-born pulsar models. These limits on the ultrahigh-energy neutrino flux models are the most stringent to date.
Collapse
Affiliation(s)
- M G Aartsen
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - K Abraham
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | | | - 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
| | - K Andeen
- Department of Physics, Marquette University, Milwaukee, Wisconsin 53201, USA
| | - T Anderson
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - I Ansseau
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - G Anton
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - M Archinger
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Argüelles
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Auffenberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - S Axani
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - 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 & 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 Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - P Berghaus
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Moscow, Russia
| | - D Berley
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | | | - A Bernhard
- Physik-department, 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
| | - S Blot
- DESY, D-15735 Zeuthen, Germany
| | - C Bohm
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Börner
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - F Bos
- Fakultät für Physik & 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
| | - J Braun
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - L Brayeur
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | | | - A Burgman
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - T Carver
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - 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
| | - K Clark
- Department of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7
| | - L Classen
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - S Coenders
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - G H Collin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J M Conrad
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - 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
| | - R Cross
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, 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
| | - E Del Pino Rosendo
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - 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
| | - G de Wasseige
- 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
| | - V di Lorenzo
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - H Dujmovic
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - 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
| | - 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 & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - P Eller
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, 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
| | - S Fahey
- 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
| | - 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
| | - S Flis
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - C-C Fösig
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | | | - E Friedman
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - 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
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - K Ghorbani
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - W Giang
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - L Gladstone
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Glagla
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | | | - 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
| | - D Grant
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - Z Griffith
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, 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
| | - 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
| | - E Hansen
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - B Hansmann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - T Hansmann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - K Hanson
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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
| | - 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
| | - S Hickford
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - J Hignight
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - G C Hill
- Department of Physics, University of Adelaide, Adelaide 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
| | - K Holzapfel
- Physik-department, Technische Universität München, D-85748 Garching, 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
| | - M Huber
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - K Hultqvist
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - S In
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - A Ishihara
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | | | - G S Japaridze
- CTSPS, Clark-Atlanta University, Atlanta, Georgia 30314, USA
| | - M Jeong
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - K Jero
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - B J P Jones
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Jurkovic
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - A Kappes
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, 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
| | - U Katz
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, 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
| | - J Kemp
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - A Kheirandish
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Kim
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | | | - J Kiryluk
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - T Kittler
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - S R Klein
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - G Kohnen
- Université de Mons, 7000 Mons, Belgium
| | - R Koirala
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - H Kolanoski
- Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
| | - R Konietz
- 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
| | - K Krings
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - M Kroll
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - G Krückl
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - C Krüger
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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 and Institute for Global Prominent Research, 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
| | - M J Larson
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - F Lauber
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - D Lennarz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - 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 Leuner
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - L Lu
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - J Lünemann
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - J Madsen
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - G Maggi
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - K B M Mahn
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Mancina
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Mandelartz
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - R Maruyama
- Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - K Mase
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - 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
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - M Medici
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Meier
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - A Meli
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - T Menne
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - G Merino
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - 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
| | | | - T Montaruli
- Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland
| | - M Moulai
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | - U Naumann
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - G Neer
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - 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 Olivas
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - 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
| | - H Pandya
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - D V Pankova
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - 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
| | - 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
| | - P B Price
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - G T Przybylski
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Quinnan
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - C Raab
- Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium
| | - L Rädel
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - M Rameez
- Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - K Rawlins
- Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, Alaska 99508, USA
| | - R Reimann
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - B Relethford
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - M Relich
- Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - E Resconi
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - W Rhode
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - M Richman
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, USA
| | - B Riedel
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - S Robertson
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - 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
| | - D Ryckbosch
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - D Rysewyk
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - L Sabbatini
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S E Sanchez Herrera
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - A Sandrock
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - J Sandroos
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany
| | - 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
| | | | - M Schimp
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - P Schlunder
- Department of Physics, TU Dortmund University, D-44221 Dortmund, Germany
| | - T Schmidt
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - 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
| | - L Schumacher
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - D Seckel
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | - S Seunarine
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | - D Soldin
- Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany
| | - M Song
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - G M Spiczak
- Department of Physics, University of Wisconsin, River Falls, Wisconsin 54022, USA
| | | | - M Stahlberg
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - T Stanev
- Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA
| | | | - A Steuer
- Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, 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
| | - 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
| | - M Sutherland
- Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, 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
| | - J Tatar
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F Tenholt
- Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, 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
| | - S Toscano
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - 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
| | - A Turcati
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - E Unger
- Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - M Usner
- DESY, D-15735 Zeuthen, Germany
| | - J Vandenbroucke
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - N van Eijndhoven
- Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium
| | - S Vanheule
- Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium
| | - M van Rossem
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | | | - J Veenkamp
- Physik-department, Technische Universität München, D-85748 Garching, Germany
| | - 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
| | - A Wallace
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - M Wallraff
- III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany
| | - N Wandkowsky
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Ch Weaver
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1
| | - M J Weiss
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, 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
- Department of Physics, University of Adelaide, Adelaide 5005, Australia
| | - S Wickmann
- 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
| | - L Wille
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - D R Williams
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - L Wills
- Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, 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
| | - E Woolsey
- 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 Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, 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 and Institute for Global Prominent Research, Chiba University, Chiba 263-8522, Japan
| | - M Zoll
- Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| |
Collapse
|
18
|
AN ALL-SKY SEARCH FOR THREE FLAVORS OF NEUTRINOS FROM GAMMA-RAY BURSTS WITH THE ICECUBE NEUTRINO OBSERVATORY. ACTA ACUST UNITED AC 2016. [DOI: 10.3847/0004-637x/824/2/115] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
19
|
Murase K, Guetta D, Ahlers M. Hidden Cosmic-Ray Accelerators as an Origin of TeV-PeV Cosmic Neutrinos. PHYSICAL REVIEW LETTERS 2016; 116:071101. [PMID: 26943524 DOI: 10.1103/physrevlett.116.071101] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Indexed: 06/05/2023]
Abstract
The latest IceCube data suggest that the all-flavor cosmic neutrino flux may be as large as 10^{-7} GeV cm^{-2} s^{-1} sr^{-1} around 30 TeV. We show that, if sources of the TeV-PeV neutrinos are transparent to γ rays with respect to two-photon annihilation, strong tensions with the isotropic diffuse γ-ray background measured by Fermi are unavoidable, independently of the production mechanism. We further show that, if the IceCube neutrinos have a photohadronic (pγ) origin, the sources are expected to be opaque to 1-100 GeV γ rays. With these general multimessenger arguments, we find that the latest data suggest a population of cosmic-ray accelerators hidden in GeV-TeV γ rays as a neutrino origin. Searches for x-ray and MeV γ-ray counterparts are encouraged, and TeV-PeV neutrinos themselves will serve as special probes of dense source environments.
Collapse
Affiliation(s)
- Kohta Murase
- Center for Particle and Gravitational Astrophysics; Department of Physics; Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Institute for Advanced Study, Princeton, New Jersey 08540, USA
| | - Dafne Guetta
- Osservatorio Astronomico di Roma, I-00040 Monte Porzio Catone, Italy
- Department of Physics and Optical Engineering, ORT Braude College, Karmiel 21982, Israel
| | - Markus Ahlers
- Wisconsin IceCube Particle Astrophysics Center (WIPAC) and Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
| |
Collapse
|
20
|
Argüelles CA, Katori T, Salvado J. Effect of New Physics in Astrophysical Neutrino Flavor. PHYSICAL REVIEW LETTERS 2015; 115:161303. [PMID: 26550862 DOI: 10.1103/physrevlett.115.161303] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 06/05/2023]
Abstract
Astrophysical neutrinos are powerful tools for investigating the fundamental properties of particle physics through their flavor content. In this Letter, we perform the first general new physics study on ultrahigh energy neutrino flavor content by introducing effective operators. We find that, at the current limits on these operators, new physics terms cause maximal effects on the flavor content; however, the flavor content on the Earth is confined to a region related to the assumed initial flavor content. Furthermore, we conclude that a precise measure of the flavor content on the Earth will provide orders of magnitude improvement on new physics bounds. Finally, we discuss the current best fits of flavor content of the IceCube data and their interplay with new physics scenarios.
Collapse
Affiliation(s)
- Carlos A Argüelles
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
- Wisconsin IceCube Particle Astrophysics Center, Madison, Wisconsin 53706, USA
| | - Teppei Katori
- School of Physics and Astronomy, Queen Mary University of London, London, E1 4NS, United Kingdom
| | - Jordi Salvado
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
- Wisconsin IceCube Particle Astrophysics Center, Madison, Wisconsin 53706, USA
| |
Collapse
|