Detection of astrophysical tau neutrino candidates in IceCube
Please see publication for complete list of co-authors. This article was originally published in The European Physical Journal C. The version of record is available at: https://doi.org/10.1140/epjc/s10052-022-10795-y High-energy tau neutrinos are rarely produced in atmospheric cosmic-ray showers or...
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ftunivdelaware:oai:udspace.udel.edu:19716/32161 2023-06-11T04:14:04+02:00 Detection of astrophysical tau neutrino candidates in IceCube IceCube Collaboration Abbasi, R. Ackermann, M. Adams, J. 2022-11-15 application/pdf https://udspace.udel.edu/handle/19716/32161 en_US eng The European Physical Journal C IceCube Collaboration., Abbasi, R., Ackermann, M. et al. Detection of astrophysical tau neutrino candidates in IceCube. Eur. Phys. J. C 82, 1031 (2022). https://doi.org/10.1140/epjc/s10052-022-10795-y 1434-6052 https://udspace.udel.edu/handle/19716/32161 Article 2022 ftunivdelaware https://doi.org/10.1140/epjc/s10052-022-10795-y 2023-05-01T12:54:42Z Please see publication for complete list of co-authors. This article was originally published in The European Physical Journal C. The version of record is available at: https://doi.org/10.1140/epjc/s10052-022-10795-y High-energy tau neutrinos are rarely produced in atmospheric cosmic-ray showers or at cosmic particle accelerators, but are expected to emerge during neutrino propagation over cosmic distances due to flavor mixing. When high energy tau neutrinos interact inside the IceCube detector, two spatially separated energy depositions may be resolved, the first from the charged current interaction and the second from the tau lepton decay. We report a novel analysis of 7.5 years of IceCube data that identifies two candidate tau neutrinos among the 60 “High-Energy Starting Events” (HESE) collected during that period. The HESE sample offers high purity, all-sky sensitivity, and distinct observational signatures for each neutrino flavor, enabling a new measurement of the flavor composition. The measured astrophysical neutrino flavor composition is consistent with expectations, and an astrophysical tau neutrino flux is indicated at 2.8σ significance. The IceCube collaboration acknowledges the significant contributions to this manuscript from Carlos Argüelles, Austin Schneider, and Juliana Stachurska. The authors gratefully acknowledge the support from the following agencies and institutions: USA – U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, Wisconsin Alumni Research Foundation, Center for High Throughput Computing (CHTC) at the University of Wisconsin-Madison, Open Science Grid (OSG), Extreme Science and Engineering Discovery Environment (XSEDE), Frontera computing project at the Texas Advanced Computing Center, U.S. Department of Energy-National Energy Research Scientific Computing Center, Particle astrophysics research computing center at the University of Maryland, Institute for Cyber-Enabled Research at Michigan State University, and ... Article in Journal/Newspaper National Science Foundation Office of Polar Programs The University of Delaware Library Institutional Repository Austin The European Physical Journal C 82 11 |
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The University of Delaware Library Institutional Repository |
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ftunivdelaware |
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English |
description |
Please see publication for complete list of co-authors. This article was originally published in The European Physical Journal C. The version of record is available at: https://doi.org/10.1140/epjc/s10052-022-10795-y High-energy tau neutrinos are rarely produced in atmospheric cosmic-ray showers or at cosmic particle accelerators, but are expected to emerge during neutrino propagation over cosmic distances due to flavor mixing. When high energy tau neutrinos interact inside the IceCube detector, two spatially separated energy depositions may be resolved, the first from the charged current interaction and the second from the tau lepton decay. We report a novel analysis of 7.5 years of IceCube data that identifies two candidate tau neutrinos among the 60 “High-Energy Starting Events” (HESE) collected during that period. The HESE sample offers high purity, all-sky sensitivity, and distinct observational signatures for each neutrino flavor, enabling a new measurement of the flavor composition. The measured astrophysical neutrino flavor composition is consistent with expectations, and an astrophysical tau neutrino flux is indicated at 2.8σ significance. The IceCube collaboration acknowledges the significant contributions to this manuscript from Carlos Argüelles, Austin Schneider, and Juliana Stachurska. The authors gratefully acknowledge the support from the following agencies and institutions: USA – U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, Wisconsin Alumni Research Foundation, Center for High Throughput Computing (CHTC) at the University of Wisconsin-Madison, Open Science Grid (OSG), Extreme Science and Engineering Discovery Environment (XSEDE), Frontera computing project at the Texas Advanced Computing Center, U.S. Department of Energy-National Energy Research Scientific Computing Center, Particle astrophysics research computing center at the University of Maryland, Institute for Cyber-Enabled Research at Michigan State University, and ... |
format |
Article in Journal/Newspaper |
author |
IceCube Collaboration Abbasi, R. Ackermann, M. Adams, J. |
spellingShingle |
IceCube Collaboration Abbasi, R. Ackermann, M. Adams, J. Detection of astrophysical tau neutrino candidates in IceCube |
author_facet |
IceCube Collaboration Abbasi, R. Ackermann, M. Adams, J. |
author_sort |
IceCube Collaboration |
title |
Detection of astrophysical tau neutrino candidates in IceCube |
title_short |
Detection of astrophysical tau neutrino candidates in IceCube |
title_full |
Detection of astrophysical tau neutrino candidates in IceCube |
title_fullStr |
Detection of astrophysical tau neutrino candidates in IceCube |
title_full_unstemmed |
Detection of astrophysical tau neutrino candidates in IceCube |
title_sort |
detection of astrophysical tau neutrino candidates in icecube |
publisher |
The European Physical Journal C |
publishDate |
2022 |
url |
https://udspace.udel.edu/handle/19716/32161 |
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Austin |
geographic_facet |
Austin |
genre |
National Science Foundation Office of Polar Programs |
genre_facet |
National Science Foundation Office of Polar Programs |
op_relation |
IceCube Collaboration., Abbasi, R., Ackermann, M. et al. Detection of astrophysical tau neutrino candidates in IceCube. Eur. Phys. J. C 82, 1031 (2022). https://doi.org/10.1140/epjc/s10052-022-10795-y 1434-6052 https://udspace.udel.edu/handle/19716/32161 |
op_doi |
https://doi.org/10.1140/epjc/s10052-022-10795-y |
container_title |
The European Physical Journal C |
container_volume |
82 |
container_issue |
11 |
_version_ |
1768391616507150336 |