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arXiv · 1505.06583

The neutrino-nucleon cross section at UHE and its astrophysical implications

Javier L. Albacete·José I. Illana·Alba Soto-Ontoso
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Abstract

We present a quantitative study of the $\nu N$ cross section in the neutrino energy range $10^4<E_{\nu}<10^{14}$ GeV within two transversal QCD approaches: NLO DGLAP evolution using different sets of PDFs and BK small-$x$ evolution with running coupling and kinematical corrections. We show that the non-linear effects embodied in the BK equation yield a slower raise in the cross section for $E_{\nu}\gtrsim 10^{8}$ GeV than the usual DGLAP based calculation. Finally, we translate this theoretical uncertainty into upper bounds for the ultra-high-energy neutrino flux for different experiments.

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Javier L. Albacete, José I. Illana, Alba Soto-Ontoso. 2015-05-25. The neutrino-nucleon cross section at UHE and its astrophysical implications. https://doi.org/10.1103/physrevd.92.014027

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