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Title: Searches for ultra-high energy neutrinos at the Pierre Auger observatory

Neutrinos in the sub-EeV energy range and above can be detected and identified with the Surface Detector array of the Pierre Auger Observatory. The identification can be efficiently done for neutrinos of all flavours interacting in the atmosphere, typically above 60° (downward-going), as well as for “Earth-skimming” neutrino interactions in the case of tau neutrinos (upward-going). Three sets of identification criteria were designed to search for downward-going neutrinos in the zenith angle bins 60° − 75° and 75° − 90° as well as for upward-going neutrinos. The three searches have been recently combined, providing, in the absence of candidates in data from 1 January 04 until 31 December 12, a stringent limit to the diffuse flux of ultra-high energy neutrinos.
Authors:
 [1] ;  [2]
  1. Dept. Física de Partículas & Instituto Galego de Física de Altas Enerxías, Univ. de Santiago de Compostela (Spain)
  2. (Argentina)
Publication Date:
OSTI Identifier:
22490634
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1666; Journal Issue: 1; Conference: Neutrino 2014: 26. international conference on neutrino physics and astrophysics, Boston, MA (United States), 2-7 Jun 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHERENKOV COUNTERS; COSMIC RAY DETECTION; COSMIC RAY FLUX; EEV RANGE; FLAVOR MODEL; MULTIPARTICLE SPECTROMETERS; NEUTRINO DETECTION; PARTICLE IDENTIFICATION; TAU NEUTRINOS