Nuclear Parton Distributions and the Drell-Yan Reaction

TL;DR

This paper presents a semi-microscopic model for nuclear parton distribution functions, incorporating various nuclear effects, and applies it to the nuclear Drell-Yan process, comparing predictions with experimental data.

Contribution

The paper introduces a comprehensive semi-microscopic model for nuclear PDFs that includes multiple nuclear effects and applies it to analyze the Drell-Yan reaction with experimental comparison.

Findings

Model successfully describes nuclear Drell-Yan data

Incorporates nuclear shadowing and meson-exchange currents

Provides insights into nuclear modifications of parton distributions

Abstract

We discuss the nuclear parton distribution functions on the basis of our recently developed semi-microscopic model, which takes into account a number of nuclear effects including Fermi motion and nuclear binding, nuclear meson-exchange currents and off-shell corrections to bound nucleon distributions as well as nuclear shadowing effect. We also discuss application to the nuclear Drell-Yan process and compare our predictions with data from the E772 and E866 experiments.