Impact of high-energy hadron interactions on the atmospheric neutrino flux predictions

Details Impact of high-energy hadron interactions on the atmospheric neutrino flux predictions Impact of high-energy hadron interactions on the atmospheric neutrino flux predictions

2009-06-03

arxiv.org/abs/0906.0671v2

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

4 pages, 5 figures, submitted to the 31th ICRC, 7-15 July 2009, Lodz, Poland; a few changes made in the text, typos corrected

Scientific paper

We study the influence of hadron interaction features on the high-energy atmospheric neutrino spectrum. The 1D calculation is performed with use of the known high-energy hadronic models, SIBYLL 2.1, QGSJET-II, Kimel and Mokhov, for the parameterizations of primary cosmic ray spectra issued from the measurement data. The results are compared with the Frejus data and AMANDA-II measurements as well as with other calculations. Sizable difference of the neutrino fluxes (up to the factor of 1.8 at 1 TeV) that are obtained with the SIBYLL and QGSJET-II appears to be rather unexpected keeping in mind the hadron and muon flux calculations in the same energy region.

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