The suppressions of dijet azimuthal correlations in the future EIC

TL;DR

This paper investigates how Sudakov resummations suppress dijet azimuthal correlations at the future Electron-Ion Collider within the Color Glass Condensate framework, providing numerical results and gluon distribution insights.

Contribution

It introduces the calculation of dijet cross sections with Sudakov resummations and explores gluon distributions using rcBK solutions, advancing understanding of small-x physics at EIC.

Findings

Sudakov resummations significantly suppress back-to-back correlations.

Numerical results demonstrate the impact of Sudakov effects on dijet azimuthal correlations.

Unpolarized and linearly polarized WW gluon distributions are characterized in both coordinate and momentum space.

Abstract

Quark-antiquark pair (or dijet) production at the electron-ion collider (EIC) has been argued to be one of most important processes that allowing to access the Weizs\"acker-Williams (WW) gluon distributions at small $x$ limit. Within the framework of Color Glass Condensate (CGC) effective field theory (EFT), we calculated the dijet cross sections and the azimuthal correlations by including the Sudakov resummations, numerical results shown that the back-to-back correlations are significantly suppressed when the Sudakov resummations are taken into account. In addition, by using the solutions of running-coupling Balitsky-Kovchegov (rcBK) equation, the unpolarized and linearly polarized WW gluon distributions both in coordinate and momentum space are presented.