Ultrahigh-energy neutrino scattering

May 2, 2013
8 pages
Published in:
  • Phys.Rev.D 88 (2013) 5, 053007
  • Published: Sep 17, 2013
e-Print:

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Abstract: (APS)
We predict the neutrino-nucleon cross section at ultrahigh energies relevant in connection with the search for high-energy cosmic neutrinos. Our investigation, employing the color-dipole picture, among other things, allows us to quantitatively determine which fraction of the ultrahigh-energy neutrino-nucleon cross section stems from the saturation vs the color-transparency region. We disagree with various results in the literature that predict a strong suppression of the neutrino-nucleon cross section at neutrino energies above E≅109  GeV. Suppression in the sense of a diminished increase of the neutrino-nucleon cross section with energy only starts to occur at neutrino energies beyond E≅1014  GeV.
Note:
  • 18 pages, 6 figures, Expanded comparison with results in the literature
  • 13.60.Hb
  • 13.15.+g
  • neutrino nucleon: cross section
  • neutrino: scattering
  • neutrino: energy: high
  • neutrino: UHE
  • neutrino: cosmic radiation
  • color: transparency
  • color: dipole
  • suppression