skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Charge transfer in a 3. -->. 2-body, reduced mass Fock-Tani representation: first order results and an introduction to high order effects

Thesis/Dissertation ·
OSTI ID:6844967

The Fock-Tani (unitary) transformation of the second-quantized Hamiltonian gives a representation which treats reactants and products symmetrically, and composites exactly. Each term in the Fock-Tani potential corresponds to a specific physical process and contains terms orthogonalizing continuum states to the bound states. The difficulty in carrying out this transformation can be lessened by working in a center of mass system, giving (n - 1) reduced mass particles. After a general analysis of such systems, the Fock-Tani transformations in the 3 ..cap alpha.. 2-body case are carried out for the reactions (1) a/sup +/ + (b/sup +/c/sup -/) ..-->.. (a/sup +/c/sup -/) + b/sup +/ and (2) a/sup -/ + (b/sup +/c/sup -/) ..-->.. (a/sup -/b/sup +/) + c/sup -/. It is found that for (2) the transformation in the symmetrical reduced mass system can easily be carried out, but the Jacobi reduced mass system requires the more complicated d-matrix approach. This transformation has not yet been attempted in the full 3-body system but is likely to be as difficult as that for (1). First order differential and total cross sections are computed for resonant change transfer in (1) for a proton-hydrogen initial state. The Fock-Tani T-matrix for the initial-state Jacobi system is found to be identical to that for the full 3-body system.

Research Organization:
Oregon Univ., Eugene (USA)
OSTI ID:
6844967
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English