TY  - JOUR
AU  - Pierre Auger Collaboration (Abreu, P. et al
AU  - Pastor, S.
PY  - 2011
DA  - 2011//
TI  - Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory
JO  - Physical Review D
SP  - 122005
VL  - 84
IS  - 12
AB  - The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated systematic uncertainties. No candidate neutrinos have been found in data collected from 1 January 2004 to 31 May 2010. Assuming an E(-2) differential energy spectrum the limit on the single-flavor neutrino is E(2)dN/dE < 1.74 x 10(-7)GeVcm(-2)s(-1)sr(-1) at 90% C.L. in the energy range 1 x 10(17) eV < E < 1 x 10(20)eV.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1202.1493
UR  - https://doi.org/10.1103/PhysRevD.84.122005
DO  - 10.1103/PhysRevD.84.122005
N1  - WOS:000298667100001
ID  - PierreAugerCollaborationAbreu+Pastor2011
ER  -