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Type: Journal article
Title: Upper limit on the diffuse flux of ultrahigh energy Tau Neutrinos from the Pierre Auger Observatory
Author: Abraham, J.
Abreu, P.
Aglietta, M.
Aguirre, I.
Allard, D.
Allekotte, I.
Allen, J.
Allison, P.
Alvarez-Muniz, J.
Ambrosio, M.
Anchordoqui, L.
Andringa, S.
Anzalone, A.
Aramo, C.
Argiro, S.
Arisaka, K.
Armengaud, E.
Arneodo, F.
Arqueros, F.
Asch, T.
et al.
Citation: Physical Review Letters, 2008; 100(21):211101-1-211101-7
Publisher: American Physical Soc
Issue Date: 2008
ISSN: 0031-9007
Statement of
J. Abraham....R. W. Clay....B. R. Dawson....M. Ziolkowski et al. (Pierre Auger Collaboration)
Abstract: The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth's crust. Tau leptons from ντ charged-current interactions can emerge and decay in the atmosphere to produce a nearly horizontal shower with a significant electromagnetic component. The data collected between 1 January2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of ντ at EeV energies. Assuming an Eν-2 differential energy spectrum the limit set at 90% C.L. is Eν2dNντ/dEν<1.3×10-7GeVcm-2s-1sr-1 in the energy range 2×1017eV<2×1019eV.
Keywords: Pierre Auger Collaboration
Rights: ©2008 American Physical Society
RMID: 0020081109
DOI: 10.1103/PhysRevLett.100.211101
Appears in Collections:Physics publications

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