Measurement of the $$\nu _{\mu }$$ νμ energy spectrum with IceCube-79

M. Aartsen (Department of Physics, University of Adelaide, Adelaide, 5005, Australia) ; M. Ackermann (DESY, Zeuthen, 15735, Germany) ; J. Adams (Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand) ; J. Aguilar (Science Faculty CP230, Université Libre de Bruxelles, Brussels, 1050, Belgium) ; M. Ahlers (Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA) ; et al. - Show all 308 authors

IceCube is a neutrino observatory deployed in the glacial ice at the geographic South Pole. The $$\nu _\mu $$ νμ energy unfolding described in this paper is based on data taken with IceCube in its 79-string configuration. A sample of muon neutrino charged-current interactions with a purity of 99.5% was selected by means of a multivariate classification process based on machine learning. The subsequent unfolding was performed using the software Truee. The resulting spectrum covers an E$$_\nu $$ ν -range of more than four orders of magnitude from 125 GeV to 3.2 PeV. Compared to the Honda atmospheric neutrino flux model, the energy spectrum shows an excess of more than $$1.9\,\sigma $$ 1.9σ in four adjacent bins for neutrino energies $$E_\nu \ge 177.8\,\text {TeV}$$ Eν177.8TeV . The obtained spectrum is fully compatible with previous measurements of the atmospheric neutrino flux and recent IceCube measurements of a flux of high-energy astrophysical neutrinos.

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      "year": "2017"
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  "control_number": "21980", 
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      "surname": "Adams", 
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      "given_names": "H.", 
      "full_name": "Dembinski, H."
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    {
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        {
          "country": "Belgium", 
          "value": "Department of Physics and Astronomy, University of Gent, Ghent, 9000, Belgium", 
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      ], 
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      "full_name": "Ridder, S."
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    {
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        {
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          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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    {
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        {
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    {
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        {
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          "value": "Institut f\u00fcr Physik, Humboldt-Universit\u00e4t zu Berlin, Berlin, 12489, Germany", 
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      ], 
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    {
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        {
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          "value": "Department of Physics and Astronomy, Michigan State University, East Lansing, MI, 48824, USA", 
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      "full_name": "DeYoung, T."
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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    {
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        {
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          "value": "Institute of Physics, University of Mainz, Staudinger Weg 7, Mainz, 55099, Germany", 
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        {
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          "value": "Department of Physics, Oskar Klein Centre, Stockholm University, Stockholm, 10691, Sweden", 
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    {
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        {
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          "value": "Department of Physics, Pennsylvania State University, University Park, PA, 16802, USA", 
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    {
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        {
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          "value": "Institute of Physics, University of Mainz, Staudinger Weg 7, Mainz, 55099, Germany", 
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    {
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        {
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    {
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        {
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          "value": "Fakult\u00e4t f\u00fcr Physik and Astronomie, Ruhr-Universit\u00e4t Bochum, Bochum, 44780, Germany", 
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    {
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        {
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          "value": "Department of Physics, Pennsylvania State University, University Park, PA, 16802, USA", 
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        {
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      "full_name": "Euler, S."
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    {
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        {
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          "value": "Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE, 19716, USA", 
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      "full_name": "Evenson, P."
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    {
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        {
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          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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      "full_name": "Fahey, S."
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    {
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        {
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          "value": "Department of Physics, Southern University, Baton Rouge, LA, 70813, USA", 
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      "full_name": "Fazely, A."
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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    {
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        {
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          "value": "Department of Physics, University of Maryland, College Park, MD, 20742, USA", 
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    {
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        {
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          "value": "Department of Physics, University of California, Berkeley, CA, 94720, USA", 
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        {
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          "value": "Department of Physics, Oskar Klein Centre, Stockholm University, Stockholm, 10691, Sweden", 
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        {
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    {
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        {
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    {
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        {
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          "value": "Department of Physics, University of Maryland, College Park, MD, 20742, USA", 
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    {
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        {
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          "value": "Department of Physics, TU Dortmund University, Dortmund, 44221, Germany", 
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE, 19716, USA", 
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        {
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          "value": "Department of Astronomy, University of Wisconsin, Madison, WI, 53706, USA", 
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics, University of California, Berkeley, CA, 94720, USA", 
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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        {
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          "value": "Department of Physics, University of Alberta, Edmonton, AB, T6G 2E1, Canada", 
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    {
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        {
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          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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    {
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        {
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          "value": "III. Physikalisches Institut, RWTH Aachen University, Aachen, 52056, Germany", 
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    {
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        {
          "country": "Germany", 
          "value": "Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universit\u00e4t Erlangen-N\u00fcrnberg, Erlangen, 91058, Germany", 
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        {
          "country": "USA", 
          "value": "Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA", 
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    {
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        {
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          "value": "Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE, 19716, USA", 
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      "given_names": "J.", 
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    {
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        {
          "country": "Canada", 
          "value": "Department of Physics, University of Alberta, Edmonton, AB, T6G 2E1, Canada", 
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        {
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        {
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        {
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      "full_name": "Hallgren, A."
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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        {
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    {
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        {
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          "value": "III. Physikalisches Institut, RWTH Aachen University, Aachen, 52056, Germany", 
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    {
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        {
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          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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    {
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        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik, Humboldt-Universit\u00e4t zu Berlin, Berlin, 12489, Germany", 
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        {
          "country": "Belgium", 
          "value": "Science Faculty CP230, Universit\u00e9 Libre de Bruxelles, Brussels, 1050, Belgium", 
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      "given_names": "D.", 
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    {
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        {
          "country": "Germany", 
          "value": "Department of Physics, University of Wuppertal, Wuppertal, 42119, Germany", 
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      "given_names": "K.", 
      "full_name": "Helbing, K."
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    {
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        {
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          "value": "Department of Physics, University of Maryland, College Park, MD, 20742, USA", 
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      "given_names": "R.", 
      "full_name": "Hellauer, R."
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    {
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        {
          "country": "Germany", 
          "value": "Department of Physics, University of Wuppertal, Wuppertal, 42119, Germany", 
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Astronomy, Michigan State University, East Lansing, MI, 48824, USA", 
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      "full_name": "Hignight, J."
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        {
          "country": "Australia", 
          "value": "Department of Physics, University of Adelaide, Adelaide, 5005, Australia", 
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics, University of Maryland, College Park, MD, 20742, USA", 
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      "full_name": "Hoffman, K."
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    {
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        {
          "country": "Germany", 
          "value": "Department of Physics, University of Wuppertal, Wuppertal, 42119, Germany", 
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    {
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        {
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          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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      "given_names": "K.", 
      "full_name": "Hoshina, K."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics, Pennsylvania State University, University Park, PA, 16802, USA", 
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      "surname": "Huang", 
      "given_names": "F.", 
      "full_name": "Huang, F."
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    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Physik-Department, Technische Universit\u00e4t M\u00fcnchen, Garching, 85748, Germany", 
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      "surname": "Huber", 
      "given_names": "M.", 
      "full_name": "Huber, M."
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    {
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        {
          "country": "Sweden", 
          "value": "Department of Physics, Oskar Klein Centre, Stockholm University, Stockholm, 10691, Sweden", 
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      "given_names": "K.", 
      "full_name": "Hultqvist, K."
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    {
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        {
          "country": "South Korea", 
          "value": "Department of Physics, Sungkyunkwan University, Suwon, 440-746, Korea", 
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      "surname": "In", 
      "given_names": "S.", 
      "full_name": "In, S."
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    {
      "affiliations": [
        {
          "country": "Japan", 
          "value": "Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba, 263-8522, Japan", 
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      "surname": "Ishihara", 
      "given_names": "A.", 
      "full_name": "Ishihara, A."
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    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "DESY, Zeuthen, 15735, Germany", 
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      "surname": "Jacobi", 
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      "full_name": "Jacobi, E."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "CTSPS, Clark-Atlanta University, Atlanta, GA, 30314, USA", 
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      ], 
      "surname": "Japaridze", 
      "given_names": "G.", 
      "full_name": "Japaridze, G."
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    {
      "affiliations": [
        {
          "country": "South Korea", 
          "value": "Department of Physics, Sungkyunkwan University, Suwon, 440-746, Korea", 
          "organization": "Sungkyunkwan University"
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      "surname": "Jeong", 
      "given_names": "M.", 
      "full_name": "Jeong, M."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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      "surname": "Jero", 
      "given_names": "K.", 
      "full_name": "Jero, K."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA", 
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      "surname": "Jones", 
      "given_names": "B.", 
      "full_name": "Jones, B."
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    {
      "affiliations": [
        {
          "country": "South Korea", 
          "value": "Department of Physics, Sungkyunkwan University, Suwon, 440-746, Korea", 
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      "given_names": "W.", 
      "full_name": "Kang, W."
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    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Kernphysik, Westf\u00e4lische Wilhelms-Universit\u00e4t M\u00fcnster, M\u00fcnster, 48149, Germany", 
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    {
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        {
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    {
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    {
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        {
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        {
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    {
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        {
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    {
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        {
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          "value": "Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA", 
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        {
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    {
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    {
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        {
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          "value": "Department of Physics, University of Wuppertal, Wuppertal, 42119, Germany", 
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        {
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        {
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        {
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    {
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        {
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          "value": "Department of Physics and Institute for Global Prominent Research, Chiba University, Chiba, 263-8522, Japan", 
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        {
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    {
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        {
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          "value": "Department of Physics, University of Wisconsin, River Falls, WI, 54022, USA", 
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    {
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        {
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    {
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        {
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    {
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        {
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          "value": "Department of Physics, Yale University, New Haven, CT, 06520, USA", 
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      "given_names": "R.", 
      "full_name": "Maruyama, R."
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    {
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        {
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    {
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        {
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          "value": "Department of Physics, University of Maryland, College Park, MD, 20742, USA", 
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      "full_name": "Maunu, R."
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    {
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        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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        {
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    {
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        {
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          "value": "Department of Physics, TU Dortmund University, Dortmund, 44221, Germany", 
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      "given_names": "M.", 
      "full_name": "Meier, M."
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    {
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        {
          "country": "Germany", 
          "value": "Department of Physics, TU Dortmund University, Dortmund, 44221, Germany", 
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      "surname": "Menne", 
      "given_names": "T.", 
      "full_name": "Menne, T."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI, 53706, USA", 
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      "given_names": "G.", 
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    {
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Science Faculty CP230, Universit\u00e9 Libre de Bruxelles, Brussels, 1050, Belgium", 
          "organization": "Universit\u00e9 Libre de Bruxelles"
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      "given_names": "T.", 
      "full_name": "Meures, T."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics, University of California, Berkeley, CA, 94720, USA", 
          "organization": "University of California"
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        {
          "country": "USA", 
          "value": "Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA", 
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      "full_name": "Miarecki, S."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics and Astronomy, Michigan State University, East Lansing, MI, 48824, USA", 
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    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institute of Physics, University of Mainz, Staudinger Weg 7, Mainz, 55099, Germany", 
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    {
      "affiliations": [
        {
          "country": "Switzerland", 
          "value": "D\u00e9partement de physique nucl\u00e9aire et corpusculaire, Universit\u00e9 de Gen\u00e8ve, Geneva, 1211, Switzerland", 
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      "surname": "Montaruli", 
      "given_names": "T.", 
      "full_name": "Montaruli, T."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA", 
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    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "DESY, Zeuthen, 15735, Germany", 
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    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Department of Physics, University of Wuppertal, Wuppertal, 42119, Germany", 
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      "given_names": "U.", 
      "full_name": "Naumann, U."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics and Astronomy, Michigan State University, East Lansing, MI, 48824, USA", 
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      "full_name": "Neer, G."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, 11794-3800, USA", 
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      "given_names": "H.", 
      "full_name": "Niederhausen, H."
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    {
      "affiliations": [
        {
          "country": "Canada", 
          "value": "Department of Physics, University of Alberta, Edmonton, AB, T6G 2E1, Canada", 
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      ], 
      "surname": "Nowicki", 
      "given_names": "S.", 
      "full_name": "Nowicki, S."
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA", 
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      "source": "Springer", 
      "title": "Measurement of the $$\\nu _{\\mu }$$ <math><msub><mi>\u03bd</mi><mi>\u03bc</mi></msub></math>  energy spectrum with IceCube-79"
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      "source": "Springer", 
      "value": "IceCube is a neutrino observatory deployed in the glacial ice at the geographic South Pole. The $$\\nu _\\mu $$ <math><msub><mi>\u03bd</mi><mi>\u03bc</mi></msub></math>  energy unfolding described in this paper is based on data taken with IceCube in its 79-string configuration. A sample of muon neutrino charged-current interactions with a purity of 99.5% was selected by means of a multivariate classification process based on machine learning. The subsequent unfolding was performed using the software Truee. The resulting spectrum covers an E$$_\\nu $$ <math><msub><mrow></mrow><mi>\u03bd</mi></msub></math> -range of more than four orders of magnitude from 125 GeV to 3.2 PeV. Compared to the Honda atmospheric neutrino flux model, the energy spectrum shows an excess of more than $$1.9\\,\\sigma $$ <math><mrow><mn>1.9</mn><mspace width=\"0.166667em\"></mspace><mi>\u03c3</mi></mrow></math>  in four adjacent bins for neutrino energies $$E_\\nu \\ge 177.8\\,\\text {TeV}$$ <math><mrow><msub><mi>E</mi><mi>\u03bd</mi></msub><mo>\u2265</mo><mn>177.8</mn><mspace width=\"0.166667em\"></mspace><mtext>TeV</mtext></mrow></math> . The obtained spectrum is fully compatible with previous measurements of the atmospheric neutrino flux and recent IceCube measurements of a flux of high-energy astrophysical neutrinos."
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Published on:
20 October 2017
Publisher:
Springer
Published in:
European Physical Journal C , Volume 77 (2017)
Issue 10
Pages 1-12
DOI:
https://doi.org/10.1140/epjc/s10052-017-5261-3
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: