Seeking the Shadowing in eA Processes

TL;DR

This paper predicts a 'turn over' in the slope of the nuclear structure function $F_2^A$ in future eA collider experiments, with shadowing effects influencing the maximum slope depending on the atomic number A, offering a way to detect shadowing corrections.

Contribution

It introduces a prediction of a 'turn over' in the slope of $F_2^A$ and shows how shadowing corrections affect its maximum, differing from DGLAP expectations.

Findings

Prediction of a 'turn over' in the slope of $F_2^A$

Maximum slope depends on the number of nucleons A due to shadowing

Measurement can reveal shadowing effects

Abstract

We consider the behavior of the slope of the nuclear structure function $F_2^A$ in the kinematic region which will be explored in the eA HERA collider. We demonstrate that, similarly to the nucleon case, a `turn over' is predicted in this observable. Moreover, we predict that the presence of the shadowing corrections implies that the maximum value of the slope is dependent of the number of nucleons A, differently from the DGLAP predictions. Our conclusion is that the measurement of this observable will allow to evidentiate the presence of the shadowing corrections.