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.; S. J. SCIUTTO

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

IOP PUBLISHING LTD

Lugar: Londres; Año: 2019 vol. 10 p. 1 - 26

1475-7516

Neutrinos with energies above 1017 eV are detectable with the Surface DetectorArray of the Pierre Auger Observatory. The identication is eciently performed forneutrinos of all avors interacting in the atmosphere at large zenith angles, as well as forEarth-skimming neutrinos with nearly tangential trajectories relative to the Earth. Noneutrino candidates were found in 14:7 years of data taken up to 31 August 2018. Thisleads to restrictive upper bounds on their ux. The 90% C.L. single-avor limit to the diuseux of ultra-high-energy neutrinos with an E􀀀2 spectrum in the energy range 1:01017 eV{2:5 1019 eV is E2dN=dE < 4:4 10􀀀9 GeV cm􀀀2 s􀀀1 sr􀀀1, placing strong constraints onseveral models of neutrino production at EeV energies and on the properties of the sourcesof ultra-high-energy cosmic rays.