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Title: Searches for UHE neutrinos and upward-going showers at the Pierre Auger Observatory Authors: ID Alvarez-Muňiz, Jaime (Author) ID Filipčič, Andrej (Author) ID Lundquist, Jon Paul (Author) ID Shivashankara, Shima Ujjani (Author) ID Stanič, Samo (Author) ID Vorobiov, Serguei (Author) ID Zavrtanik, Danilo (Author) ID Zavrtanik, Marko (Author), et al. Files: https://pos.sissa.it/484/025   UHECR2024_025.pdf (549,71 KB) MD5: 2796F394CE6803FEC1A9C2A802FA1A6B   https://doi.org/10.22323/1.484.0025   This document has even more files. Complete list of files is available below. Language: English Work type: Unknown Typology: 1.08 - Published Scientific Conference Contribution Organization: UNG - University of Nova Gorica Abstract: The Pierre Auger Observatory, as a key actor in multi-messenger astronomy, is playing a crucial role in searching for and following-up cosmic phenomena across different channels. Data from the Observatory have been utilized for nearly 20 years to search for showers induced by Ultra-High-Energy (UHE) neutrinos with energies exceeding 0.1 EeV. Neutrino-induced showers at high zenith angles are likely to develop deep in the atmosphere, resulting in a significant electromagnetic component that distinguishes them from the cosmic-ray background. This enables the identification of candidate events from both neutrinos interacting in the atmosphere and Earth-skimming τ neutrinos. Searches have been conducted for both diffuse and point sources using data collected by the Surface Detector, a large array of over 1660 water-Cherenkov stations spread over an area of 3000 square km. Additionally, the Fluorescence Detector consisting of 27 telescopes has been employed to search for upward-developing air showers, as predicted by several interpretations of the 'anomalous' events detected by the ANITA detector. In this contribution, we summarize the main results obtained in these searches and discuss their astrophysical implications. Keywords: ulti-messenger astronomy, ultra-high-energy neutrino search, down-going neutrinos, Earth-skimming τ neutrinos, search for upward-developing air showers, ANITA detector, Pierre Auger Observatory Publication status: Published Publication version: Version of Record Year of publishing: 2025 Number of pages: 8 str. PID: 20.500.12556/RUNG-9937  COBISS.SI-ID: 230062595  UDC: 539.1 ISSN on article: 1824-8039 DOI: 10.22323/1.484.0025  NUK URN: URN:SI:UNG:REP:WMFRZBU2 Publication date in RUNG: 24.03.2025 Views: 149 Downloads: 0 Metadata:    Cite this work Plain text BibTeX EndNote XML EndNote/Refer RIS ABNT ACM Ref AMA APA Chicago 17th Author-Date Harvard IEEE ISO 690 MLA Vancouver : Copy citation

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Record is a part of a proceedings

Title:	UHECR 2024, The 7th International Symposium on Ultra-High-Energy Cosmic Rays
COBISS.SI-ID:	229932291

Record is a part of a journal

Title:	Proceedings of science
Shortened title:	Pos proc. sci.
Publisher:	Sissa
ISSN:	1824-8039
COBISS.SI-ID:	20239655

Document is financed by a project

Funder:	ARIS - Slovenian Research and Innovation Agency
Project number:	P1-0031
Name:	Večglasniška astrofizika

Licences

License:	CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:	The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

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