Ultra-high energy neutrino scattering

Abstract

Estimates are made of the ultra-high energy neutrino cross sections based on an extrapolation to very small Bjorken x of the logarithmic Froissart dependence in x shown previously to provide an excellent fit to the measured proton structure function F_2^p(x,Q^2) over a broad range of the virtuality Q^2. Expressions are obtained for both the neutral current and the charged current cross sections. Comparison with an extrapolation based on perturbative QCD shows good agreement for energies where both fit data, but our rates are as much as a factor of 10 smaller for neutrino energies above 10^9 GeV, with important implications for experiments searching for extra-galactic neutrinos.

4 pages, 1 figure, 1 table; Title, abstract and text changed, conclusions unchanged. Version accepted for publication in Physical Review D

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• Calculation of High Energy Neutrino-Nucleon Cross Sections and Uncertainties Using the MSTW Parton Distribution Functions and Implications for Future Experiments
• Connection of the virtual ${\gamma }^{\ast }p$ cross section of $ep$ deep inelastic scattering to real $\gamma p$ scattering, and the implications for $\nu N$ and $ep$ total cross sections
• Analytic derivation of the leading-order gluon distribution function G(x,Q^2) = xg(x,Q^2) from the proton structure function F_2^p(x,Q^2)
• Ultrahigh energy neutrino scattering: an update
• Cherenkov Tau Shower Earth-Skimming Method for PeV-EeV Tau Neutrino Observation with Ashra
• Ultrahigh-energy neutrino-nucleon deep-inelastic scattering and the Froissart bound
• A comparative study of the neutrino-nucleon cross section at ultra high energies
• The large CP phase in B(s) - anti-B(s) mixing and Unparticle Physics
• Color dipole cross section and inelastic structure function
• The Highest Energy Neutrinos
• Investigating the effects of the QCD dynamics in the neutrino absorption by the Earth's interior at ultrahigh energies
• On Ultrahigh-energy Neutrino Scattering
• Implications of the QCD dynamics and a Super-Glashow astrophysical neutrino flux on the description of ultrahigh energy neutrino data
• MSbar quark distribution and dipole scattering matrix elements at high energy
• Probing New Physics with Astrophysical Neutrinos
• DGLAP Evolutions and cross-sections of Neutrino-Nucleon interaction at Ultra High energy