SEMICLASSICAL COUPLED WAVEPACKET STUDY OF THE DISSOCIATIVE CHARGE-EXCHANGE HE(+)+H2-]HE+H+H(+)

The semi-classical coupled wavepacket method is used to investigate the dissociative charge exchange reaction He++H-2(upsilon = 0-4) --> He+H+H+ and the vibronic excitation reaction He++H-2(upsilon=0-4) --> He++H-2(upsilon). The center of mass collision energy ranges from 2 to 10 eV. The cross sections strongly depend on both the collision energy and the initial vibrational state. The results are interpreted in terms of wavepackets dynamics and compared to experimental results.