Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data

Aartsen, M. G. (Aff16, 0000 0001 2179 1970, Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand) ; Ackermann, M. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Adams, J. (Aff16, 0000 0001 2179 1970, Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand) ; Aguilar, J. A. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Ahlers, M. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Ahrens, M. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; Altmann, D. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Andeen, K. (Aff34, 0000 0001 2369 3143, Department of Physics, Marquette University, 53201, Milwaukee, WI, USA) ; Anderson, T. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Ansseau, I. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Anton, G. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Argüelles, C. (Aff14, 0000 0001 2341 2786, Department of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA) ; Auffenberg, J. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Axani, S. (Aff14, 0000 0001 2341 2786, Department of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA) ; Backes, P. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Bagherpour, H. (Aff16, 0000 0001 2179 1970, Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand) ; Bai, X. (Aff41, 0000 0001 0704 1727, Physics Department, South Dakota School of Mines and Technology, 57701, Rapid City, SD, USA) ; Barbano, A. (Aff25, 0000 0001 2322 4988, Département de Physique Nucléaire et Corpusculaire, Université de Genève, 1211, Geneva, Switzerland) ; Barron, J. P. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Barwick, S. W. (Aff27, 0000 0001 0668 7243, Department of Physics and Astronomy, University of California, 92697, Irvine, CA, USA) ; Baum, V. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Bay, R. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) ; Beatty, J. J. (Aff18, 0000 0001 2285 7943, Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, 43210, Columbus, OH, USA) (Aff19, 0000 0001 2285 7943, Department of Astronomy, Ohio State University, 43210, Columbus, OH, USA) ; Becker Tjus, J. (Aff11, 0000 0004 0490 981X, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany) ; Becker, K.-H. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; BenZvi, S. (Aff43, 0000 0004 1936 9174, Department of Physics and Astronomy, University of Rochester, 14627, Rochester, NY, USA) ; Berley, D. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Bernardini, E. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Besson, D. Z. (Aff28, 0000 0001 2106 0692, Department of Physics and Astronomy, University of Kansas, 66045, Lawrence, KS, USA) ; Binder, G. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Bindig, D. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Blaufuss, E. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Blot, S. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Bohm, C. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; Börner, M. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Bos, F. (Aff11, 0000 0004 0490 981X, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany) ; Böser, S. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Botner, O. (Aff50, 0000 0004 1936 9457, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden) ; Bourbeau, E. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Bourbeau, J. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Bradascio, F. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Braun, J. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Bretz, H.-P. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Bron, S. (Aff25, 0000 0001 2322 4988, Département de Physique Nucléaire et Corpusculaire, Université de Genève, 1211, Geneva, Switzerland) ; Brostean-Kaiser, J. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Burgman, A. (Aff50, 0000 0004 1936 9457, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden) ; Busse, R. S. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Carver, T. (Aff25, 0000 0001 2322 4988, Département de Physique Nucléaire et Corpusculaire, Université de Genève, 1211, Geneva, Switzerland) ; Chen, C. (Aff6, 0000 0001 2097 4943, School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 30332, Atlanta, GA, USA) ; Cheung, E. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Chirkin, D. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Clark, K. (Aff29, SNOLAB, 1039 Regional Road 24, Creighton Mine 9, P3Y 1N2, Lively, ON, Canada) ; Classen, L. (Aff36, 0000 0001 2172 9288, Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149, Münster, Germany) ; Collin, G. H. (Aff14, 0000 0001 2341 2786, Department of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA) ; Conrad, J. M. (Aff14, 0000 0001 2341 2786, Department of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA) ; Coppin, P. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; Correa, P. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; Cowen, D. F. (Aff48, 0000 0001 2097 4281, Department of Astronomy and Astrophysics, Pennsylvania State University, 16802, University Park, PA, USA) (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Cross, R. (Aff43, 0000 0004 1936 9174, Department of Physics and Astronomy, University of Rochester, 14627, Rochester, NY, USA) ; Dave, P. (Aff6, 0000 0001 2097 4943, School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 30332, Atlanta, GA, USA) ; Day, M. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; de André, J. P. A. M. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; De Clercq, C. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; DeLaunay, J. J. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Dembinski, H. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Deoskar, K. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; De Ridder, S. (Aff26, 0000 0001 2069 7798, Department of Physics and Astronomy, University of Gent, 9000, Gent, Belgium) ; Desiati, P. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; de Vries, K. D. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; de Wasseige, G. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; de With, M. (Aff10, 0000 0001 2248 7639, Institut für Physik, Humboldt-Universität zu Berlin, 12489, Berlin, Germany) ; DeYoung, T. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; Díaz-Vélez, J. C. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Dujmovic, H. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Dunkman, M. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Dvorak, E. (Aff41, 0000 0001 0704 1727, Physics Department, South Dakota School of Mines and Technology, 57701, Rapid City, SD, USA) ; Eberhardt, B. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Ehrhardt, T. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Eichmann, B. (Aff11, 0000 0004 0490 981X, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany) ; Eller, P. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Evenson, P. A. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Fahey, S. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Fazely, A. R. (Aff7, 0000 0004 0386 0655, Department of Physics, Southern University, 70813, Baton Rouge, LA, USA) ; Felde, J. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Filimonov, K. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) ; Finley, C. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; Franckowiak, A. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Friedman, E. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Fritz, A. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Gaisser, T. K. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Gallagher, J. (Aff31, 0000 0001 0701 8607, Department of Astronomy, University of Wisconsin, 53706, Madison, WI, USA) ; Ganster, E. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Garrappa, S. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Gerhardt, L. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Ghorbani, K. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Giang, W. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Glauch, T. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Glüsenkamp, T. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Goldschmidt, A. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Gonzalez, J. G. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Grant, D. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Griffith, Z. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Haack, C. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Hallgren, A. (Aff50, 0000 0004 1936 9457, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden) ; Halve, L. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Halzen, F. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Hanson, K. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Hebecker, D. (Aff10, 0000 0001 2248 7639, Institut für Physik, Humboldt-Universität zu Berlin, 12489, Berlin, Germany) ; Heereman, D. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Helbing, K. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Hellauer, R. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Hickford, S. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Hignight, J. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; Hill, G. C. (Aff2, 0000 0004 1936 7304, Department of Physics, University of Adelaide, 5005, Adelaide, Australia) ; Hoffman, K. D. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Hoffmann, R. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Hoinka, T. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Hokanson-Fasig, B. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Hoshina, K. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Huang, F. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Huber, M. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Hultqvist, K. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; Hünnefeld, M. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Hussain, R. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; In, S. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Iovine, N. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Ishihara, A. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Jacobi, E. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Japaridze, G. S. (Aff5, 0000 0001 2224 3669, CTSPS, Clark-Atlanta University, 30314, Atlanta, GA, USA) ; Jeong, M. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Jero, K. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Jones, B. J. P. (Aff4, 0000 0001 2181 9515, Department of Physics, University of Texas at Arlington, Box 19059, 502 Yates St., Science Hall Rm 108, 76019, Arlington, TX, USA) ; Kalaczynski, P. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Kang, W. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Kappes, A. (Aff36, 0000 0001 2172 9288, Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149, Münster, Germany) ; Kappesser, D. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Karg, T. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Karle, A. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Katz, U. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Kauer, M. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Keivani, A. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Kelley, J. L. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Kheirandish, A. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Kim, J. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Kintscher, T. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Kiryluk, J. (Aff45, 0000 0001 2216 9681, Department of Physics and Astronomy, Stony Brook University, 11794-3800, Stony Brook, NY, USA) ; Kittler, T. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Klein, S. R. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Koirala, R. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Kolanoski, H. (Aff10, 0000 0001 2248 7639, Institut für Physik, Humboldt-Universität zu Berlin, 12489, Berlin, Germany) ; Köpke, L. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Kopper, C. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Kopper, S. (Aff47, 0000 0001 0727 7545, Department of Physics and Astronomy, University of Alabama, 35487, Tuscaloosa, AL, USA) ; Koskinen, D. J. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Kowalski, M. (Aff10, 0000 0001 2248 7639, Institut für Physik, Humboldt-Universität zu Berlin, 12489, Berlin, Germany) (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Krings, K. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Kroll, M. (Aff11, 0000 0004 0490 981X, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany) ; Krückl, G. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Kunwar, S. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Kurahashi, N. (Aff40, 0000 0001 2181 3113, Department of Physics, Drexel University, 3141 Chestnut Street, 19104, Philadelphia, PA, USA) ; Kyriacou, A. (Aff2, 0000 0004 1936 7304, Department of Physics, University of Adelaide, 5005, Adelaide, Australia) ; Labare, M. (Aff26, 0000 0001 2069 7798, Department of Physics and Astronomy, University of Gent, 9000, Gent, Belgium) ; Lanfranchi, J. L. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Larson, M. J. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Lauber, F. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Leonard, K. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Leuermann, M. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Liu, Q. R. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Lohfink, E. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Mariscal, C. J. Lozano (Aff36, 0000 0001 2172 9288, Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149, Münster, Germany) ; Lu, L. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Lünemann, J. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; Luszczak, W. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Madsen, J. (Aff42, 0000 0001 0084 3081, Department of Physics, University of Wisconsin, 54022, River Falls, WI, USA) ; Maggi, G. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; Mahn, K. B. M. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; Makino, Y. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Mancina, S. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Mariş, I. C. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Maruyama, R. (Aff38, 0000000419368710, Department of Physics, Yale University, 06520, New Haven, CT, USA) ; Mase, K. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Maunu, R. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Meagher, K. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Medici, M. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Meier, M. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Menne, T. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Merino, G. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Meures, T. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Miarecki, S. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Micallef, J. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; Momenté, G. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Montaruli, T. (Aff25, 0000 0001 2322 4988, Département de Physique Nucléaire et Corpusculaire, Université de Genève, 1211, Geneva, Switzerland) ; Moore, R. W. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Moulai, M. (Aff14, 0000 0001 2341 2786, Department of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA) ; Nagai, R. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Nahnhauer, R. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Nakarmi, P. (Aff47, 0000 0001 0727 7545, Department of Physics and Astronomy, University of Alabama, 35487, Tuscaloosa, AL, USA) ; Naumann, U. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Neer, G. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; Niederhausen, H. (Aff45, 0000 0001 2216 9681, Department of Physics and Astronomy, Stony Brook University, 11794-3800, Stony Brook, NY, USA) ; Nowicki, S. C. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Nygren, D. R. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Obertacke Pollmann, A. (Aff51, 0000 0001 2364 5811, Department of Physics, University of Wuppertal, 42119, Wuppertal, Germany) ; Olivas, A. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; O’Murchadha, A. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; O’Sullivan, E. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; Palczewski, T. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Pandya, H. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Pankova, D. V. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Peiffer, P. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Pérez de los Heros, C. (Aff50, 0000 0004 1936 9457, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden) ; Pieloth, D. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Pinat, E. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Pizzuto, A. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Plum, M. (Aff34, 0000 0001 2369 3143, Department of Physics, Marquette University, 53201, Milwaukee, WI, USA) ; Price, P. B. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) ; Przybylski, G. T. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Raab, C. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Rameez, M. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Rauch, L. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Rawlins, K. (Aff3, 0000 0001 0680 266X, Department of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., 99508, Anchorage, AK, USA) ; Rea, I. C. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Reimann, R. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Relethford, B. (Aff40, 0000 0001 2181 3113, Department of Physics, Drexel University, 3141 Chestnut Street, 19104, Philadelphia, PA, USA) ; Renzi, G. (Aff12, 0000 0001 2348 0746, Science Faculty CP230, Université Libre de Bruxelles, 1050, Brussels, Belgium) ; Resconi, E. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Rhode, W. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Richman, M. (Aff40, 0000 0001 2181 3113, Department of Physics, Drexel University, 3141 Chestnut Street, 19104, Philadelphia, PA, USA) ; Robertson, S. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Rongen, M. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Rott, C. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Ruhe, T. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Ryckbosch, D. (Aff26, 0000 0001 2069 7798, Department of Physics and Astronomy, University of Gent, 9000, Gent, Belgium) ; Rysewyk, D. (Aff22, 0000 0001 2150 1785, Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA) ; Safa, I. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Sanchez Herrera, S. E. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Sandrock, A. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Sandroos, J. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Santander, M. (Aff47, 0000 0001 0727 7545, Department of Physics and Astronomy, University of Alabama, 35487, Tuscaloosa, AL, USA) ; Sarkar, S. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) (Aff39, 0000 0004 1936 8948, Department of Physics, University of Oxford, 1 Keble Road, OX1 3NP, Oxford, UK) ; Sarkar, S. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Satalecka, K. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Schaufel, M. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Schlunder, P. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Schmidt, T. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Schneider, A. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Schneider, J. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Schöneberg, S. (Aff11, 0000 0004 0490 981X, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany) ; Schumacher, L. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Sclafani, S. (Aff40, 0000 0001 2181 3113, Department of Physics, Drexel University, 3141 Chestnut Street, 19104, Philadelphia, PA, USA) ; Seckel, D. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Seunarine, S. (Aff42, 0000 0001 0084 3081, Department of Physics, University of Wisconsin, 54022, River Falls, WI, USA) ; Soedingrekso, J. (Aff21, 0000 0001 0416 9637, Department of Physics, TU Dortmund University, 44221, Dortmund, Germany) ; Soldin, D. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Song, M. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Spiczak, G. M. (Aff42, 0000 0001 0084 3081, Department of Physics, University of Wisconsin, 54022, River Falls, WI, USA) ; Spiering, C. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Stachurska, J. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Stamatikos, M. (Aff18, 0000 0001 2285 7943, Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, 43210, Columbus, OH, USA) ; Stanev, T. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Stasik, A. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Stein, R. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Stettner, J. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Steuer, A. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Stezelberger, T. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Stokstad, R. G. (Aff9, 0000 0001 2231 4551, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA) ; Stößl, A. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Strotjohann, N. L. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Stuttard, T. (Aff20, 0000 0001 0674 042X, Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark) ; Sullivan, G. W. (Aff17, 0000 0001 0941 7177, Department of Physics, University of Maryland, 20742, College Park, MD, USA) ; Sutherland, M. (Aff18, 0000 0001 2285 7943, Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, 43210, Columbus, OH, USA) ; Taboada, I. (Aff6, 0000 0001 2097 4943, School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 30332, Atlanta, GA, USA) ; Tenholt, F. (Aff11, 0000 0004 0490 981X, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany) ; Ter-Antonyan, S. (Aff7, 0000 0004 0386 0655, Department of Physics, Southern University, 70813, Baton Rouge, LA, USA) ; Terliuk, A. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Tilav, S. (Aff37, 0000 0001 0454 4791, Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, 19716, Newark, DE, USA) ; Tobin, M. N. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Tönnis, C. (Aff46, 0000 0001 2181 989X, Department of Physics, Sungkyunkwan University, 440-746, Suwon, Korea) ; Toscano, S. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; Tosi, D. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Tselengidou, M. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Tung, C. F. (Aff6, 0000 0001 2097 4943, School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, 30332, Atlanta, GA, USA) ; Turcati, A. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Turcotte, R. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Turley, C. F. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Ty, B. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Unger, E. (Aff50, 0000 0004 1936 9457, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden) ; Unland Elorrieta, M. A. (Aff36, 0000 0001 2172 9288, Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149, Münster, Germany) ; Usner, M. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Vandenbroucke, J. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Van Driessche, W. (Aff26, 0000 0001 2069 7798, Department of Physics and Astronomy, University of Gent, 9000, Gent, Belgium) ; van Eijk, D. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; van Eijndhoven, N. (Aff13, 0000 0001 2290 8069, Dienst ELEM, Vrije Universiteit Brussel (VUB), 1050, Brussels, Belgium) ; Vanheule, S. (Aff26, 0000 0001 2069 7798, Department of Physics and Astronomy, University of Gent, 9000, Gent, Belgium) ; van Santen, J. (Aff52, 0000 0004 0492 0453, DESY, 15738, Zeuthen, Germany) ; Vraeghe, M. (Aff26, 0000 0001 2069 7798, Department of Physics and Astronomy, University of Gent, 9000, Gent, Belgium) ; Walck, C. (Aff44, 0000 0004 1936 9377, Department of Physics, Oskar Klein Centre, Stockholm University, 10691, Stockholm, Sweden) ; Wallace, A. (Aff2, 0000 0004 1936 7304, Department of Physics, University of Adelaide, 5005, Adelaide, Australia) ; Wallraff, M. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Wandler, F. D. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Wandkowsky, N. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Watson, T. B. (Aff4, 0000 0001 2181 9515, Department of Physics, University of Texas at Arlington, Box 19059, 502 Yates St., Science Hall Rm 108, 76019, Arlington, TX, USA) ; Weaver, C. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Weiss, M. J. (Aff49, 0000 0001 2097 4281, Department of Physics, Pennsylvania State University, 16802, University Park, PA, USA) ; Wendt, C. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Werthebach, J. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Westerhoff, S. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Whelan, B. J. (Aff2, 0000 0004 1936 7304, Department of Physics, University of Adelaide, 5005, Adelaide, Australia) ; Whitehorn, N. (Aff30, 0000 0000 9632 6718, Department of Physics and Astronomy, UCLA, 90095, Los Angeles, CA, USA) ; Wiebe, K. (Aff33, 0000 0001 1941 7111, Institute of Physics, University of Mainz, Staudinger Weg 7, 55099, Mainz, Germany) ; Wiebusch, C. H. (Aff1, 0000 0001 0728 696X, III. Physikalisches Institut, RWTH Aachen University, 52056, Aachen, Germany) ; Wille, L. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Williams, D. R. (Aff47, 0000 0001 0727 7545, Department of Physics and Astronomy, University of Alabama, 35487, Tuscaloosa, AL, USA) ; Wills, L. (Aff40, 0000 0001 2181 3113, Department of Physics, Drexel University, 3141 Chestnut Street, 19104, Philadelphia, PA, USA) ; Wolf, M. (Aff35, 0000000123222966, Physik-Department, Technische Universität München, 85748, Garching, Germany) ; Wood, J. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Wood, T. R. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Woolsey, E. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Woschnagg, K. (Aff8, 0000 0001 2181 7878, Department of Physics, University of California, 94720, Berkeley, CA, USA) ; Wrede, G. (Aff24, 0000 0001 2107 3311, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany) ; Xu, D. L. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA) ; Xu, X. W. (Aff7, 0000 0004 0386 0655, Department of Physics, Southern University, 70813, Baton Rouge, LA, USA) ; Xu, Y. (Aff45, 0000 0001 2216 9681, Department of Physics and Astronomy, Stony Brook University, 11794-3800, Stony Brook, NY, USA) ; Yanez, J. P. (Aff23, Department of Physics, University of Alberta, T6G 2E1, Edmonton, Alberta, Canada) ; Yodh, G. (Aff27, 0000 0001 0668 7243, Department of Physics and Astronomy, University of California, 92697, Irvine, CA, USA) ; Yoshida, S. (Aff15, 0000 0004 0370 1101, Department of Physics and Institute for Global Prominent Research, Chiba University, 263-8522, Chiba, Japan) ; Yuan, T. (Aff32, 0000 0001 0701 8607, Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, 53706, Madison, WI, USA)

13 March 2019

Abstract: The IceCube Collaboration has observed a high-energy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506 + 056. These results open a new window into the high-energy universe. However, the source or sources of most of the observed flux of astrophysical neutrinos remains uncertain. Here, a search for steady point-like neutrino sources is performed using an unbinned likelihood analysis. The method searches for a spatial accumulation of muon-neutrino events using the very high-statistics sample of about 497,000 neutrinos recorded by IceCube between 2009 and 2017. The median angular resolution is ∼1∘ at 1 TeV and improves to ∼0.3∘ for neutrinos with an energy of 1 PeV. Compared to previous analyses, this search is optimized for point-like neutrino emission with the same flux-characteristics as the observed astrophysical muon-neutrino flux and introduces an improved event-reconstruction and parametrization of the background. The result is an improvement in sensitivity to the muon-neutrino flux compared to the previous analysis of ∼35% assuming an E-2 spectrum. The sensitivity on the muon-neutrino flux is at a level of E2dN/dE=3·10-13TeVcm-2s-1 . No new evidence for neutrino sources is found in a full sky scan and in an a priori candidate source list that is motivated by gamma-ray observations. Furthermore, no significant excesses above background are found from populations of sub-threshold sources. The implications of the non-observation for potential source classes are discussed.


Published in: EPJC 79 (2019) 234
Published by: Springer/Società Italiana di Fisica
DOI: 10.1140/epjc/s10052-019-6680-0
License: CC-BY-3.0



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