  Strong multiparticle azimuthal correlations have recently been observed in
high energy proton-nucleus collisions. While final state collective effects can
be responsible for many of the observations, the domain structure in the
classical color field of a high energy nucleus also naturally leads to such
correlations. We describe recent calculations of the momentum space 2-particle
cumulant azimuthal anisotropy coefficients v_n{2}, n=2,3,4 from fundamental
representation Wilson line distributions describing the high energy nucleus. We
find significant differences between Wilson lines from the MV model and from
JIMWLK evolution. We also discuss the relation of this calculation to earlier
work on the ridge correlation obtained in the "glasma graph" approximation, and
to the "color electric field domain model."
