Excitation, ionization, and electron-capture processes in slow He[sup 2+]+H and H[sup +]+He[sup +] collisions

Journal Article · Sat May 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.3894· OSTI ID:6873124

Krstic, P S ^[1]; Janev, R K ^[2]

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1. Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)
2. International Atomic Energy Agency, P.O. Box 100, A-1400 Vienna (Austria)

Using the concept of hidden adiabatic energy crossings in the complex plane of internuclear distance, the collision dynamics in the system He[sup 2+]+H([ital n]), [ital n][le]4 and H[sup +]+He[sup +]([ital n]), [ital n][le]6 is studied. About 160 molecular states, coupled by 220 isolated (hidden-crossing) radial transitions and by the rotational transitions at [ital R][congruent]0 between the [ital m] states of ([ital Nl]) manifolds up to the [ital N]=10 united-atom principal quantum number, have been included in the calculations of the evolution matrix of the system. The calculated cross sections for transitions between the discrete states (excitation and electron capture), and from any of the considered discrete states to the continuum (ionization), are compared with other theoretical and experimental results where these are available.

• OSTI ID: 6873124
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:5; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALPHA PARTICLES
ATOM COLLISIONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELECTRON LOSS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYDROGEN
HYDROGEN IONS
ION COLLISIONS
ION-ATOM COLLISIONS
ION-ION COLLISIONS
IONIZATION
IONS
NONMETALS