Charge exchange, excitation, and ionization via hidden avoided crossings

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.2703· OSTI ID:6234154

Grozdanov, T P ^[1]; Solov'ev, E A ^[2]

---

1. Institute of Physics, P.O. Box 57, 11001 Beograd (Yugoslavia)
2. Institute of Physics, Leningrad State University (U.S.S.R.)

General principles of the asymptotic theory of adiabatically slow atomic collisions are reviewed. Special emphasis is placed on analytic properties of adiabatic potential energy curves for complex values of internuclear separation. The significance of the complex branch points and hidden avoided crossings for the dynamics of one-electron collisional systems is discussed. Adiabatic asymptotes of the cross sections for charge exchange, excitation, and ionization in slow He{sup 2+}+H(1{ital s}) and H{sup +}+He{sup +}(1{ital s}) collisions are calculated and compared with other theoretical and experimental data.

• OSTI ID: 6234154
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 42:5; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ADIABATIC APPROXIMATION
ATOM COLLISIONS
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
EXCITATION
HELIUM IONS
HYDROGEN
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
ION-ION COLLISIONS
IONIZATION
IONS
NONMETALS
POTENTIAL ENERGY