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Ultrahigh energy neutrinos, small x and unitarity

M. H. Reno, I. Sarcevic, G. Sterman, M. Stratmann, W. Vogelsang

hep-pharXiv:hep-ph/0110235

Abstract

The ultrahigh energy cross section for neutrino interactions with nucleons is reviewed, and unitarity constraints are discussed. We argue that existing QCD extrapolations are self-consistent, and do not imply a breakdown of the perturbative expansion in the weak coupling.

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