Interference effects in electron-ion recombination. III. Excited target states and continuum-continuum coupling

Journal Article · Sat Jul 15 04:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.40.558· OSTI ID:5975219

LaGattuta, K J

Provision is made for the existence of excited target states and projectile continuum-continuum coupling, within the framework of the interacting resonance theory of electron-ion recombination described previously (Phys. Rev. A 36, 4662 (1987); 38, 1820 (1988)). This ''extended'' theory makes explicit what was merely implicit in these earlier works. Dielectronic recombination probabilities, which include the effects of interaction and interference between resonances, are derived for two model systems: (a) A target ground state supporting two coupled projectile continua, and one excited target state as a closed channel; (b) a ground and first excited target state, each supporting one projectile continuum, and a second excited target state as a closed channel. Explicit calculations are performed for model (b), wherein are included Rydberg series of fully interacting resonances built on each of the two excited target states. The probability of excitation from the ground to the first excited target state is also obtained for model (b). This probability includes the effect of the interaction and interference between resonances, as well as the interference between resonance and direct excitation processes.

• Research Organization: Los Alamos National Laboratory, Mail Stop B-257, Los Alamos, New Mexico 87545 (US)
• OSTI ID: 5975219
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 40:2; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
COUPLING
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
INTERFERENCE
ION COLLISIONS
MANY-BODY PROBLEM
RECOMBINATION
RESONANCE
TWO-BODY PROBLEM