A. Ernesti et Hj. Korsch, ON ROTATIONAL RAINBOW STRUCTURES FOR INITIALLY EXCITED SYMMETRICAL-TOP MOLECULES, Journal of physics. B, Atomic molecular and optical physics, 26(22), 1993, pp. 4257-4268
Factorization relations for rotational inelastic differential cross se
ctions and transition probabilities for collisional excitation of rigi
d polyatomic targets are discussed within the sudden approximation for
the special case of symmetric top molecules. The excitation of initia
lly rotating spherical top molecules by electron impact at intermediat
e energies is studied in detail and the rotational rainbow structure i
s analysed.