Electron transfer, excitation, and ionization in {alpha}-H collisions studied with a Sturmian basis

Journal Article · Sat Dec 15 04:00:00 EST 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.062702· OSTI ID:21140653

Winter, Thomas G ^[1]

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1. Department of Physics, Pennsylvania State University, Wilkes-Barre Campus, Lehman, Pennsylvania 18627 (United States)

Cross sections have been determined for electron transfer, direct excitation, and ionization in collisions between {alpha} particles and H(1s) atoms at {alpha} energies 3 keV-38.4 MeV, extending earlier work [Phys. Rev. A 25, 697 (1982)] restricted to total transfer at 20-200 keV. Transfer as well as excitation cross sections into individual states up to 3d have been determined with several coupled-Sturmian pseudostate bases, and tests of basis sensitivity have been carried out. These and ionization cross sections have been compared with existing experimental and other coupled-state results. Structure is observed in the lower-energy excitation cross sections, which is believed not to be an artifact of the bases used. Ionization and excitation cross sections have also been compared with corresponding Born results at higher energies.

• OSTI ID: 21140653
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALPHA PARTICLES
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOMS
CHARGE EXCHANGE
CROSS SECTIONS
ELECTRON TRANSFER
EXCITATION
HYDROGEN
IONIZATION
KEV RANGE
MEV RANGE
SENSITIVITY