Crossed beam measurements of rotational quantum transitions in low-energy H/sup +/--H/sub 2/ scattering
Pure rotational excitation j=1..-->..3, 1..-->..5, 1..-->..7 and vibrational excitation v=0..-->..1, 0..-->..2 have been measured in collisions of H/sup +/ with H/sub 2/ at E/sub c.m./=4.67 and 6 eV. Transition probabilities for these processes are presented. Rotational excitation is the dominant inelastic process at E/sub c.m./=4.67 eV compared to vibrational excitation. At E/sub c.m./=6 eV the energy transfer to vibration and rotation is of comparable magnitude. The general characteristics of the scattering processes can be described by the semiclassical theory of Giese and Gentry. A quantitative comparison between experiment and the results of the calculations of Schinke and McGuire allows a detailed test of approximations made in their quantum mechanical treatment.
- Research Organization:
- Fachbereich Physik, Universitaet Kaiserslautern, 675 Kaiserslautern, West Germany
- OSTI ID:
- 6667163
- Journal Information:
- J. Chem. Phys.; (United States), Vol. 69:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HYDROGEN
ION-MOLECULE COLLISIONS
HYDROGEN IONS 1 PLUS
ATOMIC IONS
ENERGY-LEVEL TRANSITIONS
EV RANGE 01-10
EXCITATION
ION BEAMS
MOLECULAR BEAMS
ROTATIONAL STATES
BEAMS
CATIONS
CHARGED PARTICLES
COLLISIONS
CRYOGENIC FLUIDS
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EV RANGE
EXCITED STATES
FLUIDS
HYDROGEN IONS
ION COLLISIONS
IONS
MOLECULE COLLISIONS
NONMETALS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena