F. Sattin et L. Salasnich, CHAOTIC FEATURES IN CLASSICAL SCATTERING PROCESSES BETWEEN IONS AND ATOMS, Journal of physics. B, Atomic molecular and optical physics, 29(19), 1996, pp. 699-703
A numerical study has been done of collisions between protons and hydr
ogen atoms, treated as classical particles, at low impact velocities.
The presence of chaos has been looked for by investigating the process
es with standard techniques of the chaotic-scattering theory. The evid
ence of a sharp transition from nearly regular scattering to fully dev
eloped chaos has been found at the lower velocities.