Asymptotic neutrino-nucleon cross section and saturation effects

Details Asymptotic neutrino-nucleon cross section and saturation effects Asymptotic neutrino-nucleon cross section and saturation effects

2005-12-20

arxiv.org/abs/hep-ph/0512259v1

Phys.Rev. D73 (2006) 053012

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 2 figures

Scientific paper

10.1103/PhysRevD.73.053012

In this paper we present a simple analytic expression for the (spin-averaged) neutrino-nucleon cross section for ultra-high energies at twist-2, obtained as the asymptotic limit of our previous findings. This expression gives values for the cross section in remarkable numerical agreement with the previous numerical evaluation in the energy region relevant for forthcoming neutrino experiments. Moreover, we discuss the role and the relevance of saturation and recombination effects in our approach, in comparison with other recent suggestions.

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