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Search for diffuse neutrino flux from astrophysical sources with MACRO
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2003 (English)In: Astroparticle physics, ISSN 0927-6505, E-ISSN 1873-2852, Vol. 19, no 1, p. 1-13Article in journal (Refereed) Published
Abstract [en]

Many galactic and extragalactic astrophysical sources are currently considered promising candidates as high-energy neutrino emitters. Astrophysical neutrinos can be detected as upward-going muons produced in charged-current interactions with the medium surrounding the detector. The expected neutrino fluxes from various models start to dominate on the atmospheric neutrino background at neutrino energies above some tens of TeV. We present the results of a search for an excess of high-energy upward-going muons among the sample of data collected by MACRO during similar to5.8 years of effective running time. No significant evidence for this signal was found. As a consequence, an upper limit on the flux of upward-going muons from high-energy neutrinos was set at the level of 1.7 x 10(-14) cm(-2) s(-1) sr(-1). The corresponding upper limit for the diffuse neutrino flux was evaluated assuming a neutrino power law spectrum. Our result was compared with theoretical predictions and upper limits from other experiments. (C) 2002 Elsevier Science B.V. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2003. Vol. 19, no 1, p. 1-13
Keywords [en]
neutrino, AGNs, GRBs
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics, Astroparticle Physics
Identifiers
URN: urn:nbn:se:lnu:diva-30294DOI: 10.1016/S0927-6505(02)00190-1ISI: 000181705100001OAI: oai:DiVA.org:lnu-30294DiVA, id: diva2:705282
Available from: 2014-03-15 Created: 2013-11-08 Last updated: 2017-12-05Bibliographically approved

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Battistoni, GBecherini, YvonneCafagna, FLamanna, ESirri, G

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Battistoni, GBecherini, YvonneCafagna, FLamanna, ESirri, G
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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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