  In order to extract information on the strength of quark-quark correlations
in the axial vector (a.v.) diquark channel ($J^P=1^+, T=1$), we analyze the
quark light cone momentum distributions in the nucleon, in particular their
flavor dependencies, and the static properties of the nucleon. To construct the
nucleon as a relativistic 3-quark bound state, we use a simple 'static'
approximation to the full Faddeev equation in the Nambu-Jona-Lasinio model,
including correlations in the scalar ($J^P=0^+, T=0$) and a.v. diquark
channels. It is shown that the a.v. diquark correlations should be rather weak
compared to the scalar ones. From our analysis we extract information on the
strength of the correlations as well as on the probability of the a.v. diquark
channel.
