Fock-Tani transformation and a first-order theory of charge transfer
A unitary (Fock-Tani) transformation of the second-quantized Hamiltonian breaks the interaction into its component parts, e.g., elastic scattering, inelastic scattering, rearrangement interaction, etc. The interaction for a particular process is ''weaker'' than the overall interaction; this is reflected in certain orthogonality corrections which appear in a perturbation expansion of the T-matrix element. As a result, the internuclear potential makes a negligible contribution of order m/sub e//m/sub p/ to the first-order amplitude for charge transfer. We find very good agreement with experimental and the best available theoretical results for the total cross section for the reaction p+H(1s) H(1s)+p for energies greater than 10 keV and for the differential cross section at 25, 60, and 125 keV in an angular range of approx.1 mrad about the forward direction.
- Research Organization:
- Department of Physics, Institute of Chemical Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403
- OSTI ID:
- 6174666
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 33:1; 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
ATOM COLLISIONS
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELASTIC SCATTERING
ELEMENTS
ENERGY RANGE
HAMILTONIANS
HYDROGEN
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
MATHEMATICAL OPERATORS
MATRICES
MECHANICS
NONMETALS
POTENTIAL SCATTERING
QUANTIZATION
QUANTUM MECHANICS
QUANTUM OPERATORS
S MATRIX
SCATTERING
SECOND QUANTIZATION
SYMMETRY
TOTAL CROSS SECTIONS
UNITARY SYMMETRY