Anomalous ANITA air shower events and tau decays
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 ~25°–35° above the horizon. We evaluate the effective aperture for ANITA with a simplified detection model to illustrate the fe...
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ftosti:oai:osti.gov:1595315 2023-07-30T03:57:33+02:00 Anomalous ANITA air shower events and tau decays Chipman, Shoshana Diesing, Rebecca Reno, Mary Hall Sarcevic, Ina 2022-05-27 application/pdf http://www.osti.gov/servlets/purl/1595315 https://www.osti.gov/biblio/1595315 https://doi.org/10.1103/PhysRevD.100.063011 unknown http://www.osti.gov/servlets/purl/1595315 https://www.osti.gov/biblio/1595315 https://doi.org/10.1103/PhysRevD.100.063011 doi:10.1103/PhysRevD.100.063011 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS 2022 ftosti https://doi.org/10.1103/PhysRevD.100.063011 2023-07-11T09:39:24Z 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 ~25°–35° 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 neutrino-like particles. Here, 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. Other/Unknown Material Antarc* Antarctic SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Antarctic The Antarctic Physical Review D 100 6 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
spellingShingle |
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Chipman, Shoshana Diesing, Rebecca Reno, Mary Hall Sarcevic, Ina Anomalous ANITA air shower events and tau decays |
topic_facet |
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
description |
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 ~25°–35° 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 neutrino-like particles. Here, 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. |
author |
Chipman, Shoshana Diesing, Rebecca Reno, Mary Hall Sarcevic, Ina |
author_facet |
Chipman, Shoshana Diesing, Rebecca Reno, Mary Hall Sarcevic, Ina |
author_sort |
Chipman, Shoshana |
title |
Anomalous ANITA air shower events and tau decays |
title_short |
Anomalous ANITA air shower events and tau decays |
title_full |
Anomalous ANITA air shower events and tau decays |
title_fullStr |
Anomalous ANITA air shower events and tau decays |
title_full_unstemmed |
Anomalous ANITA air shower events and tau decays |
title_sort |
anomalous anita air shower events and tau decays |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1595315 https://www.osti.gov/biblio/1595315 https://doi.org/10.1103/PhysRevD.100.063011 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.osti.gov/servlets/purl/1595315 https://www.osti.gov/biblio/1595315 https://doi.org/10.1103/PhysRevD.100.063011 doi:10.1103/PhysRevD.100.063011 |
op_doi |
https://doi.org/10.1103/PhysRevD.100.063011 |
container_title |
Physical Review D |
container_volume |
100 |
container_issue |
6 |
_version_ |
1772817978908213248 |