Medium effects in the deep-inelastic charged lepton/neutrino-A scattering

TL;DR

This paper investigates the nuclear medium effects on structure functions in deep-inelastic scattering and Drell-Yan processes, using a microscopic model to compare with recent experimental data.

Contribution

It introduces a comprehensive microscopic nuclear model incorporating various nuclear effects to analyze structure functions and Drell-Yan processes in nuclear media.

Findings

Nuclear medium effects significantly alter structure functions.

Theoretical results agree well with experimental data.

Mesonic contributions and shadowing are crucial in modeling.

Abstract

In this work, we have discussed the recent developments that have taken place to understand the differences in the weak $F_{2A}^{Weak} (x,Q^2)$ and electromagnetic $F_{2A}^{EM} (x,Q^2)$ nuclear structure functions. Also we present the results of our work on nuclear medium effects on $F_{2A}^{Weak} (x,Q^2)$ and $F_{2A}^{EM} (x,Q^2)$ for a wide range of $x$ and $Q^2$. These results have been obtained using a microscopic nuclear model, where to incorporate nuclear medium effects, Fermi motion, binding energy, nucleon correlations, mesonic contributions from pion and rho mesons and shadowing effects are considered. The calculations are performed in local density approximation using relativistic nucleon spectral function. We have also compared the theoretical results with the recent experimental data on electromagnetic and weak structure functions. Furthermore, we have studied the nuclear medium effects in Drell-Yan(DY) process and present the results for differential cross section, and the results are compared with the data of E772 experiment.