Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory
NAGIOS: RODERIC FUNCIONANDO

Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory

DSpace Repository

Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory

Show simple item record

dc.contributor.author The Pierre Auger Collaboration
dc.contributor.author Pastor Carpi, Sergio
dc.contributor.author Pinto, Teguayco
dc.date.accessioned 2015-10-29T10:59:27Z
dc.date.available 2015-10-29T10:59:27Z
dc.date.issued 2009
dc.identifier.uri http://hdl.handle.net/10550/47945
dc.description.abstract Data collected at the Pierre Auger Observatory are used to establish an upper limit on the diffuse flux of tau neutrinos in the cosmic radiation. Earth-skimming tau neutrinos may interact in the Earth's crust and produce a tau lepton by means of charged-current interactions. The tau lepton may emerge from the Earth and decay in the atmosphere to produce a nearly horizontal shower with a typical signature, a persistent electromagnetic component even at very large atmospheric depths. The search procedure to select events induced by tau decays against the background of normal showers induced by cosmic rays is described. The method used to compute the exposure for a detector continuously growing with time is detailed. Systematic uncertainties in the exposure from the detector, the analysis and the involved physics are discussed. No tau neutrino candidates have been found. For neutrinos in the energy range 2×10^17 eV < E < 2×10^19 eV, assuming a diffuse spectrum of the form E^−2, data collected between 1 January 2004 and 30 April 2008 yield a 90% confidence-level upper limit of Eν^2dNντ/dEν<9×10−8 GeV cm−2 s−1 sr−1.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2009, vol. 79, num. 10, p. 102001-1-102001-15
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source The Pierre Auger Collaboration Pastor Carpi, Sergio Pinto, Teguayco 2009 Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory Physical Review D 79 10 102001-1 102001-15
dc.subject Física
dc.title Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-10-29T10:59:27Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.79.102001
dc.identifier.idgrec 060095

View       (354.4Kb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics