The distribution of linearly polarized gluons and elliptic azimuthal anisotropy in DIS dijet production at high energy

摘要

We determine the distribution of linearly polarized gluons of a dense targetat small $x$ by solving the B-JIMWLK rapidity evolution equations. From thesesolutions we estimate the amplitude of $\sim \cos 2\phi$ azimuthal asymmetriesin DIS dijet production at high energies. We find sizeable long-range inrapidity azimuthal asymmetries with a magnitude in the range of$v_2=\langle\cos 2\phi\rangle \sim 10\%$.