  We derive the low energy effective theory for two brane system with bulk
complex scalar fields. Then we find that higher order corrections to the
effective equation for scalar fields on the brane lead us to the baryon
number(B) violating process if the complex scalar field is regarded as a
particle carrying the baryon number current. We see that the motion of the
brane leads us the baryon number violation via the current-curvature coupling
even if the potential for scalar fields do not exist. We also estimate the net
baryon number assuming a C/CP violating interaction.
