  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.
