  In this paper we study D-brane scalar fluctuations in global Pilch-Warner
background geometry. We consider configurations of the probe branes compatible
with the kappa symmetry preserving condition and the brane classical equations
of motion. The corresponding meson spectra, obtained by the fluctuations along
the transverse brane directions, admit equidistant structure for the higher
modes, but some of them show additional shifts in their ground states.
