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Prompt neutrino fluxes from atmospheric charm

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      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.

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      Journal
      02 June 2008
      2008-07-16
      0806.0418
      10.1103/PhysRevD.78.043005

      http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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      Phys.Rev.D78:043005,2008
      13 pages with 11 figures; expanded discussion, added references, version to be published in Phys. Rev. D
      hep-ph astro-ph

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