A

A muon-track reconstruction exploiting stochastic losses for large-scale Cherenkov detectors

arXiv (Cornell University)

Abstract

IceCube is a cubic-kilometer Cherenkov telescope operating at the South Pole. The main goal of IceCube is the detection of astrophysical neutrinos and the identification of their sources. High-energy muon neutrinos are observed via the secondary muons produced in charge current interactions with nuclei in the ice. Currently, the best performing muon track directional reconstruction is based on a maximum likelihood method using the arrival time distribution of Cherenkov photons registered by the experiment's photomultipliers. A known systematic shortcoming of the prevailing method is to assume a continuous energy loss along the muon track. However at energies $>1$ TeV the light yield from muons is dominated by stochastic showers. This paper discusses a generalized ansatz where the expected arrival time distribution is parametrized by a stochastic muon energy loss pattern. This more realistic parametrization of the loss profile leads to an improvement of the muon angular resolution of up to $20\%$ for through-going tracks and up to a factor 2 for starting tracks over existing algorithms. Additionally, the procedure to estimate the directional reconstruction uncertainty has been improved to be more robust against numerical errors.

Authors 100

  1. Loyola University Chicago

    Affiliation as printed

    Department of Physics, Loyola University Chicago, Chicago, IL 60660, U.S.A

  2. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  3. University of Canterbury

    Affiliation as printed

    Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand

  4. Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium

  5. University of Copenhagen

    Affiliation as printed

    Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark

  6. Stockholm University

    Affiliation as printed

    Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden

  7. University of Geneva

    Affiliation as printed

    Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland

  8. Karlsruhe Institute of Technology

    Affiliation as printed

    Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany

  9. University of Delaware

    Affiliation as printed

    Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, U.S.A

  10. R. An corresponding

    Harvard University

    Affiliation as printed

    Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA 02138, U.S.A

  11. Marquette University

    Affiliation as printed

    Department of Physics, Marquette University, Milwaukee, WI, 53201, U.S.A

  12. Pennsylvania State University

    Affiliation as printed

    Department of Physics, Pennsylvania State University, University Park, PA 16802, U.S.A

  13. Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium

  14. Friedrich-Alexander-Universität Erlangen-Nürnberg

    Affiliation as printed

    Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany

  15. Harvard University

    Affiliation as printed

    Department of Physics and Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA 02138, U.S.A

  16. Massachusetts Institute of Technology

    Affiliation as printed

    Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A

  17. South Dakota School of Mines and Technology

    Affiliation as printed

    Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, U.S.A

  18. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  19. University of Geneva

    Affiliation as printed

    Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland

  20. University of California, Irvine

    Affiliation as printed

    Department of Physics and Astronomy, University of California, Irvine, CA 92697, U.S.A

  21. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  22. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  23. Université Libre de Bruxelles

    Affiliation as printed

    Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium

  24. University of California, Berkeley

    Affiliation as printed

    Department of Physics, University of California, Berkeley, CA 94720, U.S.A

  25. The Ohio State University

    Affiliation as printed

    Department of Astronomy, Ohio State University, Columbus, OH 43210, U.S.A

    Department of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, U.S.A

  26. University of Wuppertal

    Affiliation as printed

    Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany

  27. Ruhr University Bochum

    Affiliation as printed

    Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany

  28. Technical University of Munich

    Affiliation as printed

    Physik-department, Technische Universität München, D-85748 Garching, Germany

  29. University of Rochester

    Affiliation as printed

    Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, U.S.A

  30. University of Maryland, College Park

    Affiliation as printed

    Department of Physics, University of Maryland, College Park, MD 20742, U.S.A

  31. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  32. University of Kansas

    Affiliation as printed

    Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, U.S.A

  33. Lawrence Berkeley National Laboratory · University of California, Berkeley

    Affiliation as printed

    Department of Physics, University of California, Berkeley, CA 94720, U.S.A

    Lawrence Berkeley National Laboratory, Berkeley, CA 94720, U.S.A

  34. University of Wuppertal

    Affiliation as printed

    Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany

  35. University of Maryland, College Park

    Affiliation as printed

    Department of Physics, University of Maryland, College Park, MD 20742, U.S.A

  36. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  37. RWTH Aachen University

    Affiliation as printed

    III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany

  38. Affiliation as printed

    Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany

  39. Uppsala University

    Affiliation as printed

    Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden

  40. RWTH Aachen University

    Affiliation as printed

    III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany

  41. University of Copenhagen

    Affiliation as printed

    Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark

  42. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  43. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  44. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  45. University of Geneva

    Affiliation as printed

    Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland

  46. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  47. Karlsruhe Institute of Technology

    Affiliation as printed

    Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany

  48. Uppsala University

    Affiliation as printed

    Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden

  49. University of Münster

    Affiliation as printed

    Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany

  50. Drexel University

    Affiliation as printed

    Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, U.S.A

  51. Georgia Institute of Technology

    Affiliation as printed

    School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, U.S.A

  52. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  53. Sungkyunkwan University

    Affiliation as printed

    Department of Physics, Sungkyunkwan University, Suwon 16419, Korea

  54. Michigan State University

    Affiliation as printed

    Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, U.S.A

  55. Michigan State University

    Affiliation as printed

    Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, U.S.A

  56. University of Münster

    Affiliation as printed

    Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany

  57. University of Delaware

    Affiliation as printed

    Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, U.S.A

  58. Massachusetts Institute of Technology

    Affiliation as printed

    Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A

  59. Massachusetts Institute of Technology

    Affiliation as printed

    Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A

  60. Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium

  61. Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium

  62. Pennsylvania State University

    Affiliation as printed

    Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802, U.S.A

    Department of Physics, Pennsylvania State University, University Park, PA 16802, U.S.A

  63. University of Rochester

    Affiliation as printed

    Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, U.S.A

  64. Georgia Institute of Technology

    Affiliation as printed

    School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, U.S.A

  65. Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium

  66. Pennsylvania State University

    Affiliation as printed

    Department of Physics, Pennsylvania State University, University Park, PA 16802, U.S.A

  67. University of Delaware

    Affiliation as printed

    Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, U.S.A

  68. Stockholm University

    Affiliation as printed

    Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden

  69. Ghent University

    Affiliation as printed

    Department of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium

  70. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  71. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  72. Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium

  73. Vrije Universiteit Brussel

    Affiliation as printed

    Vrije Universiteit Brussel (VUB), Dienst ELEM, B-1050 Brussels, Belgium

  74. Humboldt-Universität zu Berlin

    Affiliation as printed

    Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany

  75. Michigan State University

    Affiliation as printed

    Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, U.S.A

  76. RWTH Aachen University

    Affiliation as printed

    III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany

  77. Massachusetts Institute of Technology

    Affiliation as printed

    Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A

  78. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  79. Karlsruhe Institute of Technology

    Affiliation as printed

    Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany

  80. Pennsylvania State University

    Affiliation as printed

    Department of Physics, Pennsylvania State University, University Park, PA 16802, U.S.A

  81. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  82. South Dakota School of Mines and Technology

    Affiliation as printed

    Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, U.S.A

  83. Affiliation as printed

    Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany

  84. Technical University of Munich

    Affiliation as printed

    Physik-department, Technische Universität München, D-85748 Garching, Germany

  85. Karlsruhe Institute of Technology

    Affiliation as printed

    Karlsruhe Institute of Technology, Institute for Astroparticle Physics, D-76021 Karlsruhe, Germany

  86. RWTH Aachen University

    Affiliation as printed

    III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany

  87. University of Maryland, College Park

    Affiliation as printed

    Department of Physics, University of Maryland, College Park, MD 20742, U.S.A

  88. University of Delaware

    Affiliation as printed

    Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, U.S.A

  89. University of Wisconsin–Madison

    Affiliation as printed

    Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A

  90. Southern University and Agricultural and Mechanical College

    Affiliation as printed

    Department of Physics, Southern University, Baton Rouge, LA 70813, U.S.A

  91. Friedrich-Alexander-Universität Erlangen-Nürnberg

    Affiliation as printed

    Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany

  92. Pennsylvania State University

    Affiliation as printed

    Department of Physics, Pennsylvania State University, University Park, PA 16802, U.S.A

  93. University of California, Berkeley

    Affiliation as printed

    Department of Physics, University of California, Berkeley, CA 94720, U.S.A

  94. Stockholm University

    Affiliation as printed

    Oskar Klein Centre and Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden

  95. Deutsches Elektronen-Synchrotron DESY

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

  96. Pennsylvania State University

    Affiliation as printed

    Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802, U.S.A

  97. Deutsches Elektronen-Synchrotron DESY · Ruhr University Bochum

    Affiliation as printed

    DESY, D-15738 Zeuthen, Germany

    Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany

  98. University of Maryland, College Park

    Affiliation as printed

    Department of Physics, University of Maryland, College Park, MD 20742, U.S.A

  99. Affiliation as printed

    Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany

  100. RWTH Aachen University

    Affiliation as printed

    III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany

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References 30