Radiative charge transfer and radiative association in He{sup +}+ Ne collisions

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.022717· OSTI ID:21408243

Liu, X J; Xiao, B J ^[1]; Qu, Y Z; Zhou, Y ^[2]; Liu, C H; Wang, J G ^[3]; Buenker, R J ^[4]

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1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)
2. College of Material Sciences and Optoelectronic Technology, Graduate University of the Chinese Academy of Sciences, Beijing 100049 (China)
3. Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)
4. Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universitaet Wuppertal, D-42097 Wuppertal (Germany)

A fully quantum-mechanical approach is utilized to study the collision process of He{sup +} with neutral neon, and the radiative charge transfer (RCT) and radiative association (RA) cross sections are presented in the energy range from 0.08 meV to 1 eV, while the optical potential and semiclassical methods are adopted to calculate the total radiative decay cross sections for energies from 0.08 meV to 5 keV. The potential energy curves and dipole transition matrix elements are obtained by an ab initio multireference configuration interaction package. For the related three lowest X {sup 2{Sigma}+}, A {sup 2{Pi}}, and B {sup 2{Sigma}+} states, the spectroscopic data are in good agreement with other theoretical calculations and experimental measurements. Our results indicate that the RCT cross section is much larger than the nonradiative charge transfer cross section for collision energy E < 20 eV, and when E > 40 eV, the nonradiative process becomes dominant. Especially, we found that in the present collision system the RA process is more important than the RCT process when E < 1 meV. The RCT and RA rate coefficients are also given for temperatures from 1 to 4 x10{sup 3} K.

• OSTI ID: 21408243
• Journal Information: Physical Review. A, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevA.81.022717; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CONFIGURATION INTERACTION
CROSS SECTIONS
DIAGRAMS
DIPOLES
EV RANGE
HELIUM IONS
KEV RANGE
MATRIX ELEMENTS
MEV RANGE
NEON
POTENTIAL ENERGY
POTENTIALS
QUANTUM MECHANICS
RADIATIVE DECAY
SEMICLASSICAL APPROXIMATION
APPROXIMATIONS
CALCULATION METHODS
CHARGED PARTICLES
DECAY
ELEMENTS
ENERGY
ENERGY RANGE
FLUIDS
GASES
INFORMATION
IONS
MECHANICS
MULTIPOLES
NONMETALS
PARTICLE DECAY
RARE GASES