Coulomb corrections to inclusive cross sections at the future Electron-Ion Collider

V P Gonçalves,F S Navarra,M V T Machado,D Spiering

doi:10.1103/physrevc.97.015204

Abstract

The experimental results of the future Electron-Ion ($eA$) Collider are expected to constrain the dynamics of the strong interactions at small values of the Bjorken $x$ variable and large nuclei. Recently it has been suggested that Coulomb corrections can be important in inclusive and diffractive $eA$ interactions. In this paper, we present a detailed investigation of the impact of the Coulomb corrections to some of the observables that will be measured in the future $eA$ collider. In particular, we estimate the magnitude of these corrections for the charm and longitudinal cross sections in inclusive and diffractive interactions. Our results demonstrate that the Coulomb corrections for these observables are negligible, which implies that they can be used to probe the QCD dynamics.

Highlights

We present a detailed investigation of the impact of the Coulomb corrections to some of the observables that will be measured in the future eA collider
The future Electron-Ion Collider (EIC) [1,2,3,4] will allow us to study the hadronic structure in the regime of large partonic densities and strong field strengths, which are expected to modify the linear evolution equations [5,6] normally used in quantum chromodynamics (QCD) at high energies
We have studied in detail the Coulomb contribution to some of the observables that will be measured in the future eA collider

Summary

Introduction

The future Electron-Ion Collider (EIC) [1,2,3,4] will allow us to study the hadronic structure in the regime of large partonic densities and strong field strengths, which are expected to modify the linear evolution equations [5,6] normally used in quantum chromodynamics (QCD) at high energies. The enhancement of nonlinear effects with the nuclear mass number has motivated the development of several studies on the implications of these effects in inclusive and exclusive observables which could be measured in electronion (eA) colliders [8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25] These studies have demonstrated that an eA collider is the ideal environment to improve our undestanding of the strong interactions at high energies.

Objectives

Results

Conclusion