Quark and gluon distributions in ρ-meson from basis light-front quantization.

We solve for the ρ -meson's wave functions from a light-front QCD Hamiltonian determined for its constituent quark-antiquark and quark-antiquark-gluon Fock components, with a three-dimensional confinement using basis light-front quantization. From this, we obtain the leading-twist valence quark's parton distribution functions and transverse momentum-dependent parton distributions inside the ρ -meson. These results are qualitatively consistent with those of other models. We also demonstrate the important effects of a dynamical gluon on the ρ -meson's gluon densities, helicity, transversity, and tensor polarized distributions. [ABSTRACT FROM AUTHOR]