  It has long been thought that a highly excited string can be regarded as a
black hole: the correspondence principle between strings and a black hole,
while recent studies found that black holes are characterized by chaos. This
suggests that highly excited strings are the source of the black hole
chaoticity. We study the chaoticity of a string amplitude where a tachyon is
scattered by a highly excited string. Our strategy to extract the chaos in the
amplitude is a generalization of the transient chaos analysis for classical
scattering. We look for the fractal structure in the plots of incoming/outgoing
scattering angles, where the outgoing angle is defined as the maximum pole of
the amplitude. Within our strategy, we could not identify any fractal structure
in the scattering data. We also discuss other possible setups and strategies to
extract the chaos, hoping that our present work serves as a step toward the
formulation of chaos in string scattering amplitudes.
