Huaguo Teng et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 1355 doi:10.1088/0953-4075/31/6/020
Electron impact excitation of complex atoms and ions IV: Forbidden transitions in 
Huaguo Teng
, M S T Watts, V M Burke
and P G Burke
Collision strengths and effective collision strengths for electron-impact excitation of forbidden transitions between all 16 terms of the ground-state configuration 
of 
have been calculated using the R-matrix method. The importance of including configuration-interaction wavefunctions both in the target-state expansion and in the (N + 1)-electron quadratically integrable function expansion is discussed. The effect of the inclusion of 
states has also been investigated. Although the collision strengths were significantly altered due to resonances in both of these studies, the resulting change in the effective collision strength was small. Collision strengths were calculated for incident electron energies from threshold to 16 Ryd and tables of effective collision strengths are presented for electron temperatures in the range from 
to 
.
- PACS
-
34.80.Dp Atomic excitation and ionization
31.15.ve Electron correlation calculations for atoms and ions: ground state
31.15.-p Calculations and mathematical techniques in atomic and molecular physics
- Subjects
- Dates
-
Issue 6 (28 March 1998)
Received 4 November 1997
-
Electron impact excitation of complex atoms and ions IV: Forbidden transitions in
Huaguo Teng et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 1355
-
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