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Characteristics of Four Upward-Pointing Cosmic-Ray-like Events Observed with ANITA.
Gorham, P W; Nam, J; Romero-Wolf, A; Hoover, S; Allison, P; Banerjee, O; Beatty, J J; Belov, K; Besson, D Z; Binns, W R; Bugaev, V; Cao, P; Chen, C; Chen, P; Clem, J M; Connolly, A; Dailey, B; Deaconu, C; Cremonesi, L; Dowkontt, P F; DuVernois, M A; Field, R C; Fox, B D; Goldstein, D; Gordon, J; Hast, C; Hebert, C L; Hill, B; Hughes, K; Hupe, R; Israel, M H; Javaid, A; Kowalski, J; Lam, J; Learned, J G; Liewer, K M; Liu, T C; Link, J T; Lusczek, E; Matsuno, S; Mercurio, B C; Miki, C; Miocinovic, P; Mottram, M; Mulrey, K; Naudet, C J; Ng, J; Nichol, R J; Palladino, K; Rauch, B F.
Affiliation
  • Gorham PW; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Nam J; Department of Physics, Graduate Institute of Astrophysics and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Romero-Wolf A; Jet Propulsion Laboratory, Pasadena, California 91109, USA.
  • Hoover S; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA.
  • Allison P; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Banerjee O; Center for Cosmology and Particle Astrophysics, Ohio State University, Columbus, Ohio 43210, USA.
  • Beatty JJ; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Belov K; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Besson DZ; Center for Cosmology and Particle Astrophysics, Ohio State University, Columbus, Ohio 43210, USA.
  • Binns WR; Jet Propulsion Laboratory, Pasadena, California 91109, USA.
  • Bugaev V; Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA.
  • Cao P; Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Chen C; Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Chen P; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Clem JM; Department of Physics, Graduate Institute of Astrophysics and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Connolly A; Department of Physics, Graduate Institute of Astrophysics and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Dailey B; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Deaconu C; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Cremonesi L; Center for Cosmology and Particle Astrophysics, Ohio State University, Columbus, Ohio 43210, USA.
  • Dowkontt PF; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • DuVernois MA; Department of Physics, Enrico Fermi Institute, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
  • Field RC; Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom.
  • Fox BD; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA.
  • Goldstein D; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Gordon J; SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
  • Hast C; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Hebert CL; Department of Physics, University of California, Irvine, California 92697, USA.
  • Hill B; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Hughes K; SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
  • Hupe R; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Israel MH; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Javaid A; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Kowalski J; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Lam J; Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Learned JG; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Liewer KM; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Liu TC; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA.
  • Link JT; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Lusczek E; Jet Propulsion Laboratory, Pasadena, California 91109, USA.
  • Matsuno S; Department of Physics, Graduate Institute of Astrophysics and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Mercurio BC; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Miki C; School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • Miocinovic P; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Mottram M; Department of Physics, Ohio State University, Columbus, Ohio 43210, USA.
  • Mulrey K; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Naudet CJ; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Ng J; Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom.
  • Nichol RJ; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Palladino K; Jet Propulsion Laboratory, Pasadena, California 91109, USA.
  • Rauch BF; SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
Phys Rev Lett ; 117(7): 071101, 2016 Aug 12.
Article in En | MEDLINE | ID: mdl-27563945
ABSTRACT
We report on four radio-detected cosmic-ray (CR) or CR-like events observed with the Antarctic Impulsive Transient Antenna (ANITA), a NASA-sponsored long-duration balloon payload. Two of the four were previously identified as stratospheric CR air showers during the ANITA-I flight. A third stratospheric CR was detected during the ANITA-II flight. Here, we report on characteristics of these three unusual CR events, which develop nearly horizontally, 20-30 km above the surface of Earth. In addition, we report on a fourth steeply upward-pointing ANITA-I CR-like radio event which has characteristics consistent with a primary that emerged from the surface of the ice. This suggests a possible τ-lepton decay as the origin of this event, but such an interpretation would require significant suppression of the standard model τ-neutrino cross section.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Phys Rev Lett Year: 2016 Document type: Article Affiliation country: United States
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Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Phys Rev Lett Year: 2016 Document type: Article Affiliation country: United States