Upward-Pointing Cosmic-Ray-like Events Observed with ANITA

Andres Romero-Wolf , (ANITA Collaboration) , P. W. Gorham , J. Nam , S. Hoover , P. Allison , O. Banerjee , L. Batten

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J. J. Beatty K. Belov D. Z. Besson W. R. Binns V. Bugaev P. Cao C. Chen P. Chen J. M. Clem A. Connolly B. Dailey C. Deaconu L. Cremonesi P. F. Dowkontt M. A. DuVernois R. C. Field B. D. Fox D. Goldstein J. Gordon C. Hast C. L. Hebert B. Hill K. Hughes R. Hupe M. H. Israel A. Javaid J. Kowalski J. Lam A. Ludwig J. G. Learned K. M. Liewer T. C. Liu J. T. Link E. Lusczek S. Matsuno B. C. Mercurio C. Miki P.Miocinovic M. Mottram K. Mulrey C. J. Naudet J. Ng R. J. Nichol A. Novikov K. Palladino S. Prohira B. F. Rauch K. Reil J. Roberts M. Rosen B. Rotter J. Russell L. Ruckman D. Saltzberg D. Seckel S. Stafford J. Stockham M. Stockham B. Strutt K. Tatem G. S. Varner A. G. Vieregg D. Walz S. A. Wissel F. Wu (in collaboration with) J. Alvarez-Mu\~niz W. Carvalho Jr. H. Schoorlemmer E. Zas

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keywords anitaeventeventsconsistentcosmic-ray-likeobservedoriginproceedings

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These proceedings address a recent publication by the ANITA collaboration of four upward- pointing cosmic-ray-like events observed in the first flight of ANITA. Three of these events were consistent with stratospheric cosmic-ray air showers where the axis of propagation does not inter- sect the surface of the Earth. The fourth event was consistent with a primary particle that emerges from the surface of the ice suggesting a possible {\tau}-lepton decay as the origin of this event. These proceedings follow-up on the modeling and testing of the hypothesis that this event was of {\tau} neutrino origin.

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Upward-Pointing Cosmic-Ray-like Events Observed with ANITA

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