Parton-shower event generators that go beyond the collinear-ordering
approximation at small x have so far included only gluon and valence quark
channels at transverse momentum dependent level. We describe results of recent
work to include effects of the sea-quark distribution with explicit dependence
on the transverse quark-momentum.This sea-quark density is then applied to the
description of forward Z -production. The qq*->Z matrix element (with one
off-shell quark) is calculated in an explicit gauge invariant way, making use
of high energy factorization. The kT-factorized result has been implemented
into the CCFM Monte-Carlo CASCADE and a numerical comparison with the qg*->Zq
matrix element has been carried out.Comment: 4 pages, 4 figures, based on a talk given at the XXI Workshop on
Deep-Inelastic Scattering and Related Subjects, 11-15 April, Newport News,
Virginia (2011
