Binary-encounter form factor and its use in the calculation of inelastic cross sections involving Rydberg atoms
The form factor is a key parameter to be evaluated in most theoretical approaches currently available for the calculation of inelastic collisional cross sections involving Rydberg atoms. The binary-encounter method is shown to offer a very powerful means for the rapid evaluation of this parameter. Analytical expressions of the form factor are derived from hydrogenic wave functions. Many comparisons between binary-encounter and quantal calculations establish the range of validity of the former method. It is shown that, in most situations of practical interest, this approach provides an easy and efficient way to compute the cross sections corresponding to inelastic collisions between Rydberg atoms and atomic or molecular targets.
- Research Organization:
- Service de Physique des Atomes et des Surfaces, Institut de Recherche Fondamentale, Commissariat a l'Energie Atomique, Centre d'Etudes Nucleaires de Saclay, F-91191 Gif-sur-Yvette Cedex, France
- OSTI ID:
- 6651550
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 30:1; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BINARY ENCOUNTER METHOD
CROSS SECTIONS
ENERGY LEVELS
EXCITED STATES
FORM FACTORS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
PARTICLE PROPERTIES
QUANTUM NUMBERS
QUENCHING
RYDBERG STATES
SCATTERING