Carla Bleve (Author), Andrej Filipčič (Author), Gašper Kukec Mezek (Author), A. Saleh (Author), Samo Stanič (Author), M. Trini (Author), Darko Veberič (Author), Serguei Vorobiov (Author), Lili Yang (Author), Danilo Zavrtanik (Author), Marko Zavrtanik (Author)

Abstract

Ultra-high energy neutrinos and photons, with energies above 1 EeV and 10 EeV respectively, can be detected with the Surface Detector array (SD) of the Pierre Auger Observatory. Downward- going neutrinos of all flavours interacting in the atmosphere at zenith angles θ > 60◦, upward-going tau neutrinos (“Earth- skimming”), as well as photons in the zenith range 30◦ − 60◦ can be identified through the broad time-structure of the signals expected to be induced in the SD stations. An additional signature for photon-induced air showers is the steeper lateral distribution of secondary particles at ground with respect to the nucleonic showers. Stringent limits are set to the diffuse flux of ultra-high energy (UHE) neutrinos and photons, using data collected between 2004 and mid-2013, under the hypothesis of an E[sup]−2 spectrum for signal primaries.

Keywords

ultra-high energy neutrinos;ultra-high energy photons;cosmic rays;elemental composition;Pierre Auger Observatory;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: UNG - University of Nova Gorica
UDC: 539.1
COBISS: 4151803 Link will open in a new window
ISSN: 1824-8039
Views: 4075
Downloads: 224
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Other data

URN: URN:SI:UNG
Type (COBISS): Not categorized
Pages: 8 str.
Chronology: 2015
ID: 9128171