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RESEARCH PRODUCT

Limits on the diffuse flux of ultra-high energy neutrinos using the Pierre Auger Observatory

The Pierre Auger CollaborationSergio Pastor Carpi

subject

Pierre Auger ObservatoryPhysicsNuclear and High Energy PhysicsHigh energy010308 nuclear & particles physicsPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaDetectorAstrophysics::Instrumentation and Methods for AstrophysicsFísicaCosmic rayAstrophysics7. Clean energy01 natural sciencesAtmosphere13. Climate action0103 physical sciencesDiffuse fluxHigh Energy Physics::ExperimentNeutrino010303 astronomy & astrophysicsInstrumentationLepton

description

Abstract The surface detector array of the Pierre Auger Observatory is sensitive to ultra-high energy neutrinos in the cosmic radiation. These particles can interact close to ground, both through charged and neutral currents in the atmosphere (down-going) and, for tau neutrinos, through the Earth-skimming mechanism (up-going) where a tau lepton is produced in the Earth's crust that can emerge and decay in the atmosphere. Both types of neutrino-induced events produce an inclined shower that can be identified by the presence of a broad time structure of signals in the water-Cherenkov detectors. Using data collected from the surface detector array of the Pierre Auger Observatory, we present the corresponding limits on the diffuse flux of ultra-high energy neutrinos.

10.1016/j.nima.2010.11.014http://hdl.handle.net/10550/37487