  The ghost condensate <epsilon^{abc} cbar^b c^c> is considered together with
the gluon condensate <A^2> in SU(2) Euclidean Yang-Mills theories quantized in
the Landau gauge. The vacuum polarization ceases to be transverse due to the
nonvanishing condensate <epsilon^{abc} cbar^b c^c>. The gluon propagator itself
remains transverse. By polarization effects, this ghost condensate induces then
a splitting in the gluon mass parameter, which is dynamically generated through
<A^2>. The obtained effective masses are real when <A^2> is included in the
analysis. In the absence of <A^2>, the already known result that the ghost
condensate induces effective tachyonic masses is recovered. At the one-loop
level, we find that the effective diagonal mass becomes smaller than the
off-diagonal one. This might serve as an indication for some kind of Abelian
dominance in the Landau gauge, similar to what happens in the maximal Abelian
gauge.
