  The effect of dynamical short-range correlations on the generalized momentum
distribution $n(\vec{p},\vec{Q})$ in the case of $Z=N$, $\ell$-closed shell
nuclei is investigated by introducing Jastrow-type correlations in the
harmonic-oscillator model. First, a low order approximation is considered and
applied to the nucleus $^4$He. Compact analytical expressions are derived and
numerical results are presented and the effect of center-of-mass corrections is
estimated. Next, an approximation is proposed for $n(\vec{p}, \vec{Q})$ of
heavier nuclei, that uses the above correlated $n(\vec{p},\vec{Q})$ of $^4$He.
Results are presented for the nucleus $^{16}$O. It is found that the effect of
short-range correlations is significant for rather large values of the momenta
$p$ and/or $Q$ and should be included, along with center of mass corrections
for light nuclei, in a reliable evaluation of $n(\vec{p},\vec{Q})$ in the whole
domain of $p$ and $Q$.
