Journal article
Anomalous ANITA air shower events and tau decays
Physical review. D, Vol.100(6), 063011
09/18/2019
DOI: 10.1103/PhysRevD.100.063011
Abstract
Two unusual neutrino events in the Antarctic Impulse Transient Antenna (ANITA) appear to have been generated by air showers from a particle emerging from the Earth at angle similar to 25 degrees 35 degrees above the horizon. We evaluate the effective aperture for ANITA with a simplified detection model to illustrate the features of the angular dependence of expected events for incident standard model tau neutrinos and for sterile neutrinos that mix with tau neutrinos. We apply our sterile neutrino aperture results to a dark matter scenario with long-lived supermassive dark matter that decay to sterile neutrinolike particles. We find that for upgoing air showers from tau decays, from isotropic fluxes of standard model, sterile neutrinos, or other particles that couple to the tau through suppressed weak interaction cross sections cannot be responsible for the unusual events.
Details
- Title: Subtitle
- Anomalous ANITA air shower events and tau decays
- Creators
- Shoshana Chipman - University of ChicagoRebecca Diesing - University of ChicagoMary Hall Reno - University of IowaIna Sarcevic - University of Arizona
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Vol.100(6), 063011
- DOI
- 10.1103/PhysRevD.100.063011
- ISSN
- 2470-0010
- eISSN
- 2470-0029
- Publisher
- Amer Physical Soc
- Number of pages
- 12
- Grant note
- DE-SC-0010113; DE-FG02-13ER41976; DE-SC0009913 / U.S. Department of Energy; United States Department of Energy (DOE) 80NSSC18K0246 / NASA; National Aeronautics & Space Administration (NASA)
- Language
- English
- Date published
- 09/18/2019
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428818402771
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