Application of eikonal approximation to charge transfer in energetic ion-atom collisions
Thesis/Dissertation
·
OSTI ID:5437817
The eikonal approach is applied to the evaluation of the cross section for electon capture from an arbitrary nim shell of a hydrogenic target atom into an arbitrary Nlm shell of a fast hydrogenic projectile. Both the impact and wave pictures are employed and their equivalence is discussed. The results are obtained in exact analytical closed form. The approach is also extended here to allow for multi-electron targets, where, as a first approximation, each atomic orbital is specified by three hydrogenic quantum numbers, an effective nuclear charge Z/sub t/, and an energy eigenvalue in the impact picture, or ionization potential in the wave picture. Because of incomplete information on the many-body target, the Z/sub t/ appearing in the eikonal phase factor is left undetermined; nonetheless, analytic expressions are derived for the theoretical cross sections, and numerical values calculated for simple choices of Z/sub t/. Present calculations are compared with the OBK results and the existing experimental data for the capture from H and from the multielectron targets C, Ne, Ar, N/sub 2/, O/sub 2/, and He. For the capture reaction H/sup +/ + H(1s) ..-->.. H(2s) + H/sup +/, agreement with recent experimental measurement is excellent.
- Research Organization:
- Arkansas Univ., Fayetteville (USA)
- OSTI ID:
- 5437817
- Country of Publication:
- United States
- Language:
- English
Similar Records
Eikonal approximation for charge transfer from a multielectron atom to fast projectiles
Eikonal calculation of electron-capture cross sections from an arbitrary nlm shell of a hydrogenic target into an arbitrary n'l'm' shell of a fast bare projectile
Theoretical study of electron capture in ion-ion and ion-atom collisions. Progress report, September 1, 1980-April 30, 1981
Journal Article
·
Mon Nov 30 23:00:00 EST 1981
· Phys. Rev. A; (United States)
·
OSTI ID:5935413
Eikonal calculation of electron-capture cross sections from an arbitrary nlm shell of a hydrogenic target into an arbitrary n'l'm' shell of a fast bare projectile
Journal Article
·
Sat Aug 01 00:00:00 EDT 1981
· Phys. Rev. A; (United States)
·
OSTI ID:6190815
Theoretical study of electron capture in ion-ion and ion-atom collisions. Progress report, September 1, 1980-April 30, 1981
Technical Report
·
Tue Mar 31 23:00:00 EST 1981
·
OSTI ID:6499194
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANALYTICAL SOLUTION
ARGON
ATOM COLLISIONS
CAPTURE
CARBON
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
EIKONAL APPROXIMATION
ELECTRON CAPTURE
ELEMENTS
FLUIDS
GASES
HELIUM
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
NEON
NITROGEN
NONMETALS
NUMERICAL DATA
OXYGEN
RARE GASES
THEORETICAL DATA
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANALYTICAL SOLUTION
ARGON
ATOM COLLISIONS
CAPTURE
CARBON
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
EIKONAL APPROXIMATION
ELECTRON CAPTURE
ELEMENTS
FLUIDS
GASES
HELIUM
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
NEON
NITROGEN
NONMETALS
NUMERICAL DATA
OXYGEN
RARE GASES
THEORETICAL DATA