Nuclear medium effects in $\nu(\bar\nu)$-nucleus deep inelastic scattering

TL;DR

This paper investigates nuclear medium effects on weak structure functions in neutrino and antineutrino deep inelastic scattering, incorporating nuclear spectral functions and meson cloud contributions, and compares results with experimental data.

Contribution

It introduces a comprehensive theoretical model that combines nuclear spectral functions with meson cloud effects to analyze deep inelastic scattering in nuclei.

Findings

Results agree with NuTeV and CDHSW experimental data.

Nuclear effects significantly modify structure functions.

Meson cloud contributions are essential for accurate modeling.

Abstract

We study the nuclear medium effects in the weak structure functions $F_2(x,Q^2)$ and $F_3(x,Q^2)$ in the deep inelastic neutrino/antineutrino reactions in nuclei. We use a theoretical model for the nuclear spectral functions which incorporates the conventional nuclear effects, such as Fermi motion, binding and nucleon correlations. We also consider the pion and rho meson cloud contributions calculated from a microscopic model for meson-nucleus self-energies. The calculations have been performed using relativistic nuclear spectral functions which include nucleon correlations. Our results are compared with the experimental data of NuTeV and CDHSW.