Electron-impact study of SOS using the R-matrix method
Journal Article
·
· Physical Review. A
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
We have carried out a comprehensive study of electron impact on open SOS isomer by using the R-matrix method. Elastic (integrated and differential), momentum-transfer, excitation, and ionization cross sections along with efffective collision frequency over a wide electron temperature range (100-30 000 K) have been presented. The target states are represented by including correlations via a configuration interaction technique. The results of the static-exchange, correlated one-state, and 31-state close-coupling approximation are presented. Our study has detected a shape resonance, five core-excited shape resonances, and two Feshbach resonances in the 31-state model. We detect a stable bound state of SOS{sup -} having configuration 1a{sub 1}{sup 2}2a{sub 1}{sup 2}...9a{sub 1}{sup 2},1b{sub 1}{sup 2}2b{sub 1}{sup 2}3b{sub 1},1b{sub 2}{sup 2}2b{sub 2}{sup 2}...7b{sub 2}{sup 2},1a{sub 2}{sup 2}2a{sub 2}{sup 2} with a vertical electronic affinity value of 1.999 eV. The ionization cross sections are calculated in the binary-encounter Bethe model in which Hartree-Fock molecular orbitals at self-consistent level are used to calculate kinetic and binding energies of the occupied molecular orbitals.
- OSTI ID:
- 21448514
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
74 ATOMIC AND MOLECULAR PHYSICS
AFFINITY
APPROXIMATIONS
BINDING ENERGY
BOUND STATE
CALCULATION METHODS
CHALCOGENIDES
COLLISIONS
CONFIGURATION INTERACTION
CORRELATIONS
COUPLING
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EXCITATION
FERMIONS
HARTREE-FOCK METHOD
IONIZATION
ISOMERS
LEPTONS
MATRICES
MOLECULE COLLISIONS
MOMENTUM TRANSFER
OXIDES
OXYGEN COMPOUNDS
R MATRIX
RESONANCE
SULFUR COMPOUNDS
SULFUR OXIDES
AFFINITY
APPROXIMATIONS
BINDING ENERGY
BOUND STATE
CALCULATION METHODS
CHALCOGENIDES
COLLISIONS
CONFIGURATION INTERACTION
CORRELATIONS
COUPLING
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EXCITATION
FERMIONS
HARTREE-FOCK METHOD
IONIZATION
ISOMERS
LEPTONS
MATRICES
MOLECULE COLLISIONS
MOMENTUM TRANSFER
OXIDES
OXYGEN COMPOUNDS
R MATRIX
RESONANCE
SULFUR COMPOUNDS
SULFUR OXIDES