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Title: Very high energy antineutrinos from photo-disintegration of cosmic ray nuclei
Authors: Gupta, Nayantara
Keywords: High energy neutrions
Issue Date: Feb-2016
Publisher: Elsevier B.V.
Citation: Astroparticle Physics, 2016, Vol.74, p1-5
Abstract: The photo-disintegration of cosmic ray nuclei by starlight leads to the production of secondary antineutrinos. We have assumed that the flux of the ultrahigh energy cosmic ray nuclei near the Galactic plane region is the same as that observed near the earth and calculated the antineutrino flux produced from their photo-disintegration. The IceCube detector has measured the neutrino/antineutrino flux in the TeV–PeV energy range. Our calculated secondary antineutrino flux in the energy range of 10–100 TeV is found to be much less compared to the flux detected by the IceCube collaboration. The upper limit on the intensity of the radiation field in the extragalactic medium is much lower than that near the Galactic center. If we extend our formalism to the extragalactic medium the contribution from the photo-disintegration of ultrahigh energy cosmic ray heavy nuclei remains insignificant due to their very low flux.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 0927-6505
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Copyright: 2016 Elsevier B.V.
Appears in Collections:Research Papers (A&A)

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