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IceCube Search for Earth-traversing ultra-high energy Neutrinos

IceCube Collaboration; Safa, Ibrahim; Abbasi, Rasha; Ackermann, Markus; Adams, Jenni; Aguilar, Juanan; Ahlers, M.; Ahrens, Maryon; Alispach, Cyril Martin; Alves Junior, Antonio Augusto 1; Amin, Najia Moureen Binte; An, Rui; Andeen, Karen; Anderson, Tyler; Anton, Gisela; Arguelles, Carlos; Ashida, Yosuke; Axani, Spencer; Bai, Xinhua; ... mehr


The search for ultra-high energy neutrinos is more than half a century old. While the hunt for these neutrinos has led to major leaps in neutrino physics, including the detection of astrophysical neutrinos, neutrinos at the EeV energy scale remain undetected. Proposed strategies for the future have mostly been focused on direct detection of the first neutrino interaction, or the decay shower of the resulting charged particle. Here we present an analysis that uses, for the first time, an indirect detection strategy for EeV neutrinos. We focus on tau neutrinos that have traversed Earth, and show that they reach the IceCube detector, unabsorbed, at energies greater than 100 TeV for most trajectories. This opens up the search for ultra-high energy neutrinos to the entire sky. We use ten years of IceCube data to perform an analysis that looks for secondary neutrinos in the northern sky, and highlight the promise such a strategy can have in the next generation of experiments when combined with direct detection techniques.

Verlagsausgabe §
DOI: 10.5445/IR/1000138623
Veröffentlicht am 06.10.2021
DOI: 10.22323/1.395.1170
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 18.03.2022
Sprache Englisch
Identifikator ISSN: 1824-8039
KITopen-ID: 1000138623
HGF-Programm 51.13.04 (POF IV, LK 01) Kosmische Strahlung Technologien
Erschienen in Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021), Ed.: A. Kappes
Veranstaltung 37th International Cosmic Ray Conference (ICRC 2021), Online, 12.07.2021 – 23.07.2021
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Seiten Art.-Nr.: 1170
Serie Pos proceedings of Science ; 395
Vorab online veröffentlicht am 06.07.2021
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