Prompt neutrino fluxes from atmospheric charm

Abstract

We calculate the prompt neutrino flux from atmospheric charm production by cosmic rays, using the dipole picture in a perturbative QCD framework, which incorporates the parton saturation effects present at high energies. We compare our results with the next-to-leading order perturbative QCD result and find that saturation effects are large for neutrino energies above 10^6 GeV, leading to a substantial suppression of the prompt neutrino flux. We comment on the range of prompt neutrino fluxes due to theoretical uncertainties.

13 pages with 11 figures; expanded discussion, added references, version to be published in Phys. Rev. D

References in corpus (5)

• PYTHIA 6.4 Physics and Manual
• Saturation QCD predictions with heavy quarks at HERA
• The total charm cross section
• Probing new physics with long-lived charged particles produced by atmospheric and astrophysical neutrinos
• Charm Production in DPMJET

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