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Unusual Near-Horizon Cosmic-Ray-like Events Observed by ANITA-IV.
Gorham, P W; Ludwig, A; Deaconu, C; Cao, P; Allison, P; Banerjee, O; Batten, L; Bhattacharya, D; Beatty, J J; Belov, K; Binns, W R; Bugaev, V; Chen, C H; Chen, P; Chen, Y; Clem, J M; Cremonesi, L; Dailey, B; Dowkontt, P F; Fox, B D; Gordon, J W H; Hast, C; Hill, B; Hsu, S Y; Huang, J J; Hughes, K; Hupe, R; Israel, M H; Liu, T C; Macchiarulo, L; Matsuno, S; McBride, K; Miki, C; Nam, J; Naudet, C J; Nichol, R J; Novikov, A; Oberla, E; Olmedo, M; Prechelt, R; Rauch, B F; Roberts, J M; Romero-Wolf, A; Rotter, B; Russell, J W; Saltzberg, D; Seckel, D; Schoorlemmer, H; Shiao, J; Stafford, S.
Afiliación
  • Gorham PW; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Ludwig A; Department of Physics, Enrico Fermi Institute, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
  • Deaconu C; Department of Physics, Enrico Fermi Institute, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
  • Cao P; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Allison P; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Banerjee O; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Batten L; Department of Physics and Astronomy, University College London, WC1E 6BT London, United Kingdom.
  • Bhattacharya D; Department of Mathematics, George Washington University, Washington, D.C. 20052, USA.
  • Beatty JJ; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Belov K; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Binns WR; Department of Physics and McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Bugaev V; Department of Physics and McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Chen CH; Department of Physics, Graduate Institute of Astrophysics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Chen P; Department of Physics, Graduate Institute of Astrophysics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Chen Y; Department of Physics, Graduate Institute of Astrophysics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Clem JM; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Cremonesi L; Department of Physics and Astronomy, University College London, WC1E 6BT London, United Kingdom.
  • Dailey B; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Dowkontt PF; Department of Physics and McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Fox BD; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Gordon JWH; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Hast C; SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
  • Hill B; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Hsu SY; Department of Physics, Graduate Institute of Astrophysics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Huang JJ; Department of Physics, Graduate Institute of Astrophysics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
  • Hughes K; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Hupe R; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Israel MH; Department of Physics and McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Liu TC; Department of Electrophysics, National Yang-Ming Chiao Tung University, Hsinchu 30010, Taiwan.
  • Macchiarulo L; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Matsuno S; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • McBride K; Department of Physics, Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, Ohio 43210, USA.
  • Miki C; 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.
  • Naudet CJ; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Nichol RJ; Department of Physics and Astronomy, University College London, WC1E 6BT London, United Kingdom.
  • Novikov A; Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA.
  • Oberla E; National Research Nuclear University, Moscow Engineering Physics Institute, Moscow 115409, Russia.
  • Olmedo M; Department of Physics, Enrico Fermi Institute, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
  • Prechelt R; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Rauch BF; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Roberts JM; Department of Physics and McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
  • Romero-Wolf A; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Rotter B; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Russell JW; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Saltzberg D; Department of Physics and Astronomy, University of Hawaii, Manoa, Hawaii 96822, USA.
  • Seckel D; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA.
  • Schoorlemmer H; Department of Physics, University of Delaware, Newark, Delaware 19716, USA.
  • Shiao J; Max-Planck-Institute für Kernphysik, 69029 Heidelberg, Germany.
  • Stafford S; Department of Physics, Graduate Institute of Astrophysics, and Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
Phys Rev Lett ; 126(7): 071103, 2021 Feb 19.
Article en En | MEDLINE | ID: mdl-33666466
ABSTRACT
ANITA's fourth long-duration balloon flight in 2016 detected 29 cosmic-ray (CR)-like events on a background of 0.37_{-0.17}^{+0.27} anthropogenic events. CRs are mainly seen in reflection off the Antarctic ice sheets, creating a phase-inverted waveform polarity. However, four of the below-horizon CR-like events show anomalous noninverted polarity, a p=5.3×10^{-4} chance if due to background. All anomalous events are from locations near the horizon; ANITA-IV observed no steeply upcoming anomalous events similar to the two such events seen in prior flights.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos