Pomeron inspired Neutrino-nucleon Cross Section in Ultra High Energy

TL;DR

This paper models ultra-high-energy neutrino-nucleon cross sections using a QCD-inspired dynamic pomeron approach, providing analytic formulas and comparisons to existing data to aid future neutrino experiments.

Contribution

It introduces a novel QCD-based model for UHE neutrino-nucleon cross sections using a dynamic pomeron-like behavior, with analytic expressions and comparative analysis.

Findings

Derived analytic forms for CC and NC neutrino-nucleon cross sections.

Predicted cross sections consistent with a hard-pomeron exchange model.

Enhanced understanding of neutrino interactions at ultra-high energies.

Abstract

Studies on neutrino-nucleon ($\nu N$) cross sections at different energy scales have regained interest due to increasing importance of precision measurements, as they are needed as an ingredient in all neutrino experiments. In this paper we have calculated both charged current (CC) and neutral current (NC) $\nu$N scattering cross sections at Ultra High Energy (UHE) regime in the neutrino energy ($E_{\nu}$) region i.e. $10^{9} GeV \le E_{\nu} \le 10^{12}$ GeV using QCD inspired double asymptotic limit fit of electron-proton structure function $F_{2}^{ep}$ to low $\mathit{x}$ HERA data. The form $F_{2}^{ep} \sim x^{-\lambda(Q^{2})}$ used in our analysis, can be conjectured like a dynamic pomeron (DP)-type behaviour. We also find an analytic form of the total cross sections, $\sigma_{CC}^{\nu N}$ and $\sigma_{NC}^{\nu N}$ which appear to be of hard-pomeron exchange types. A comparative analysis of our results with those available in literature is also done. An improved understanding of $\nu N$ interactions at UHE are essentially important for future oscillation experiments. Future measurements will support/confront our predictions. \textbf{Keywords}: Neutrino cross section, Ultra High Energy, QCD, Double Asymptotic limit, dynamic pomeron, hard-pomeron.