Evaluation of nlm-n'l'm' capture amplitude in the target continuum distorted-wave theory

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.38.1202· OSTI ID:7159519

Deb, N C

We present a technique to evaluate the capture amplitude from an arbitrary initial state of the target to an arbitrary final state of the projectile within the framework of target continuum distorted-wave theory recently derived and developed by Crothers and Dunseath. Both integrals in their first-order transition amplitude, T/sup (1)/, are evaluated into closed form, resulting in a finite number of terms. From our general expression of the nlm-n'l'm' amplitude, the evaluation of T/sup (1)/ for the 1s-1s capture is straightforward. With this technique, it is now convenient to calculate capture cross sections from higher angular momentum states of the target to any projectile states, which are not so easy to calculate in other second-order theories such as the strong-potential Born approximation.

• Research Organization: Department of Physics, Kansas State University, Manhattan, Kansas 66506
• OSTI ID: 7159519
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 38:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
ATOM COLLISIONS
CAPTURE
COLLISIONS
DISTORTED WAVE THEORY
ELECTRON CAPTURE
ENERGY LEVELS
EXCITED STATES
GROUND STATES
ION COLLISIONS
ION-ATOM COLLISIONS
TRANSITION AMPLITUDES