  We study the scattering of axially incident massless scalar waves by a
charged and rotating black hole solution from heterotic string theory called
the Kerr-Sen black hole. We compute the scattering cross section using the
partial wave approach, for arbitrary incident wavelengths. We compare our
results with those of the general relativistic version of a charged and
rotating black hole, namely the Kerr-Newman black hole. We present a selection
of numerical results showing that these compact objects have similar scattering
properties.
