Electromagnetic and Weak Nuclear Structure Functions $F_{1,2}(x,Q^2)$ in the Intermediate Region of $Q^2$

TL;DR

This paper investigates nuclear structure functions for electromagnetic and weak interactions in the intermediate $Q^2$ range, incorporating various nuclear medium effects and comparing results with experimental data.

Contribution

It introduces a comprehensive many-body field theoretical approach to account for nuclear medium effects on structure functions in the intermediate $Q^2$ region.

Findings

Nuclear medium effects significantly modify structure functions.

Results align well with experimental data.

Implications for the Callan-Gross relation are discussed.

Abstract

We have studied nuclear structure functions $F_{1A}(x,Q^2)$ and $F_{2A}(x,Q^2)$ for electromagnetic and weak processes in the region of $1 GeV^2 < Q^2 <8 GeV^2$. The nuclear medium effects arising due to Fermi motion, binding energy, nucleon correlations, mesonic contributions and shadowing effects are taken into account using a many body field theoretical approach. The calculations are performed in a local density approximation using a relativistic nucleon spectral function. The results are compared with the available experimental data. Implications of nuclear medium effects on the validity of Callan-Gross relation are also discussed.