Probing the origin of ultra-high-energy cosmic rays with neutrinos in the EeV energy range using the Pierre Auger Observatory

THE PIERRE AUGER COLLABORATION; GARCIA, B (COMO PARTE DE THE PIERRE AUGER COLL)

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

IOP PUBLISHING LTD

Lugar: Londres; Año: 2019 vol. 10 p. 1 - 28

1475-7516

Neutrinoswith energies above 1017eVare detectable with the Surface Detector Array of the Pierre AugerObservatory. The identification is efficiently performed forneutrinosof all flavors interacting in the atmosphere at large zenith angles,as well asfor Earth-skimming τ neutrinos with nearly tangentialtrajectories relative to the Earth. No neutrino candidates were foundin∼14.7 years of data taken up to 31 August 2018.This leads torestrictive upper bounds on their flux. The 90% C.L. single-flavorlimit tothe diffuse flux of ultra-high-energy neutrinos with anEν−2spectrumin the energy range1.0×1017eV−2.5×1019eVisE2dNν/dEν<4.4×10−9GeVcm−2s−1sr−1,placing strongconstraints on several models of neutrino product.p { margin-bottom: 0.1in; line-height: 115%; background: transparent }