Close-coupling calculation for electron capture by an alpha particle from atomic hydrogen

1981 ◽  
Vol 14 (20) ◽  
pp. 3977-3986 ◽  
Author(s):  
K Fujiwara
Keyword(s):  
Electron Capture ◽  
Alpha Particle ◽  
Atomic Hydrogen ◽  
Close Coupling ◽  
Coupling Calculation

scholarly journals Electron capture in slow collisions of O6+ions with atomic hydrogen

2019 ◽  
Vol 625 ◽  
pp. A29
Author(s):  
Xiaohe Lin ◽  
Yong Wu ◽  
J. G. Wang ◽  
Bin Shao ◽  
R. K. Janev
Keyword(s):  
Electron Capture ◽  
Cross Sections ◽  
Ground State ◽  
Atomic Hydrogen ◽  
Theoretical Data ◽  
Rate Coefficients ◽  
Hydrogen Atoms ◽  
Close Coupling ◽  
Radiative Transitions ◽  
Reaction Channels

Aims. Electron capture in collisions of highly charged O6+ions with ground-state hydrogen atoms is a very important process in solar wind X-ray studies.Methods. In the present study, the full quantum-mechanical molecular-orbital close-coupling method is employed to study electron capture reactions in collisions of O6+ion with ground-state atomic hydrogen in the energy region from 10−4keV u−1to 5 keV u−1. The ab initio multi-reference single- and double-excitation configuration interaction (MRD-CI) method is used to calculate the potential and coupling data used in the QMOCC calculations.Results. Total and state-selective cross sections for the dominant and subdominant reaction channels are calculated and compared with the available experimental and theoretical data. The branching ratios for Lithium-like O5+excited ions are used to calculate the contribution of cascade radiative transitions fromn = 5 levels to the population of 4l states. From the calculated cross sections, reaction rate coefficients are obtained for temperatures between 1000 and 1 × 109K and compared with other calculations.

scholarly journals Hyperspherical close-coupling calculation of D-wave positronium formation and excitation cross sections in positron–hydrogen scattering

1996 ◽  
Vol 74 (7-8) ◽  
pp. 353-359 ◽  
Author(s):  
Yan Zhou ◽  
C. D. Lin
Keyword(s):  
Cross Sections ◽  
Atomic Hydrogen ◽  
Positronium Formation ◽  
Close Coupling ◽  
Inelastic Threshold ◽  
Excitation Cross Sections ◽  
Coupling Calculation ◽  
Positron Collisions ◽  
Potential Curves ◽  
D Wave

The hyperspherical close-coupling method is used to calculate the elastic, positronium-formation, and excitation cross sections for positron collisions with atomic hydrogen at energies below the H (n = 4) threshold for the J = 2 partial wave. The resonances below each inelastic threshold were also analyzed. The adiabatic hyperspherical potential curves are used to identify the nature of these resonances.

Electron Capture by Alpha Particles Incident on Atomic Hydrogen

1967 ◽  
Vol 163 (1) ◽  
pp. 8-12 ◽  
Author(s):  
D. Basu ◽  
D. M. Bhattacharya ◽  
G. Chatterjee
Keyword(s):  
Electron Capture ◽  
Atomic Hydrogen ◽  
Alpha Particles

scholarly journals State Selective Electron Capture in the Collision of S3+ Ions in Atomic Hydrogen and Helium

2004 ◽  
Vol 5 (11) ◽  
pp. 265-275 ◽  
Author(s):  
Marta Łabuda ◽  
Y. Tergiman ◽  
Marie-Christine Bacchus-Montabonel ◽  
Jozef Sienkiewicz
Keyword(s):  
Electron Capture ◽  
Atomic Hydrogen
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