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Title: Upper Limit on the Diffuse Flux of Ultrahigh Energy Tau Neutrinos from the Pierre Auger Observatory

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 {nu}{sub {tau}} 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 January 2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of {nu}{sub {tau}} at EeV energies. Assuming an E{sub {nu}}{sup -2} differential energy spectrum the limit set at 90% C.L. is E{sub {nu}}{sup 2}dN{sub {nu}{sub {tau}}}/dE{sub {nu}}<1.3x10{sup -7} GeV cm{sup -2} s{sup -1} sr{sup -1} in the energy range 2x10{sup 17} eV<E{sub {nu}}<2x10{sup 19} eV.

Authors:
; ;  [1]; ; ; ; ; ; ; ; ;  [2]; ; ; ; ; ; ; ;  [3]
  1. Universidad Tecnologica Nacional, FR-Mendoza (Argentina)
  2. LIP and Instituto Superior Tecnico, Lisboa (Portugal)
  3. Istituto di Fisica dello Spazio Interplanetario (INAF), Universita di Torino and Sezione INFN, Torino (Italy)
Publication Date:
OSTI Identifier:
21132461
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 100; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevLett.100.211101; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). Pierre Auger Collaboration; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CASCADE SHOWERS; CHARGED-CURRENT INTERACTIONS; EARTH ATMOSPHERE; EARTH CRUST; EEV RANGE; ENERGY SPECTRA; TAU NEUTRINOS; TAU PARTICLES

Citation Formats

Abraham, J, Garcia, B, Otero, L, Abreu, P, Andringa, S, Assis, P, Brogueira, P, Conceicao, R, Goncalves, P, Pimenta, M, Santo, C E, Tome, B, Aglietta, M, Bonino, R, Castellina, A, Chiavassa, A, Fulgione, W, Gorgi, A, Hauschildt, T, and Maldera, S. Upper Limit on the Diffuse Flux of Ultrahigh Energy Tau Neutrinos from the Pierre Auger Observatory. United States: N. p., 2008. Web. doi:10.1103/PHYSREVLETT.100.211101.
Abraham, J, Garcia, B, Otero, L, Abreu, P, Andringa, S, Assis, P, Brogueira, P, Conceicao, R, Goncalves, P, Pimenta, M, Santo, C E, Tome, B, Aglietta, M, Bonino, R, Castellina, A, Chiavassa, A, Fulgione, W, Gorgi, A, Hauschildt, T, & Maldera, S. Upper Limit on the Diffuse Flux of Ultrahigh Energy Tau Neutrinos from the Pierre Auger Observatory. United States. https://doi.org/10.1103/PHYSREVLETT.100.211101
Abraham, J, Garcia, B, Otero, L, Abreu, P, Andringa, S, Assis, P, Brogueira, P, Conceicao, R, Goncalves, P, Pimenta, M, Santo, C E, Tome, B, Aglietta, M, Bonino, R, Castellina, A, Chiavassa, A, Fulgione, W, Gorgi, A, Hauschildt, T, and Maldera, S. 2008. "Upper Limit on the Diffuse Flux of Ultrahigh Energy Tau Neutrinos from the Pierre Auger Observatory". United States. https://doi.org/10.1103/PHYSREVLETT.100.211101.
@article{osti_21132461,
title = {Upper Limit on the Diffuse Flux of Ultrahigh Energy Tau Neutrinos from the Pierre Auger Observatory},
author = {Abraham, J and Garcia, B and Otero, L and Abreu, P and Andringa, S and Assis, P and Brogueira, P and Conceicao, R and Goncalves, P and Pimenta, M and Santo, C E and Tome, B and Aglietta, M and Bonino, R and Castellina, A and Chiavassa, A and Fulgione, W and Gorgi, A and Hauschildt, T and Maldera, S},
abstractNote = {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 {nu}{sub {tau}} 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 January 2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of {nu}{sub {tau}} at EeV energies. Assuming an E{sub {nu}}{sup -2} differential energy spectrum the limit set at 90% C.L. is E{sub {nu}}{sup 2}dN{sub {nu}{sub {tau}}}/dE{sub {nu}}<1.3x10{sup -7} GeV cm{sup -2} s{sup -1} sr{sup -1} in the energy range 2x10{sup 17} eV<E{sub {nu}}<2x10{sup 19} eV.},
doi = {10.1103/PHYSREVLETT.100.211101},
url = {https://www.osti.gov/biblio/21132461}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 21,
volume = 100,
place = {United States},
year = {Fri May 30 00:00:00 EDT 2008},
month = {Fri May 30 00:00:00 EDT 2008}
}