Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/70840
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Type: Journal article
Title: Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory
Author: Abreu, P.
Barber, K.
Bellido Caceres, J.
Clay, R.
Cooper, M.
Dawson, B.
Harrison, T.
Herve, A.
Holmes, V.
Sorokin, J.
Wahrlich, P.
Whelan, B.
Citation: Physical Review D: Particles, Fields, Gravitation and Cosmology, 2011; 84(12):1-16
Publisher: American Physical Soc
Issue Date: 2011
ISSN: 1550-7998
1550-2368
Statement of
Responsibility: 
Abreu, P....Barber, K...Bellido Caceres, J. A...Clay, R...Cooper, M...Dawson, B. R...Harrison, T. A...Herve, A. E...Holmes, V. C...Sorokin, J. S...Wahrlich, P. S...Whelan, B. J...et al.
Abstract: 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 E2dN/dE<1.74×10-7GeVcm-2s-1sr-1 at 90% C.L. in the energy range 1×1017eV<E<1×1020eV.
Rights: ©2011 American Physical Society
DOI: 10.1103/PhysRevD.84.122005
Grant ID: ARC
Published version: http://dx.doi.org/10.1103/PhysRevD.84.122005
Appears in Collections:Aurora harvest 5
Physics publications

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