Table 2.
Comparison of computed energy levels in the present work and other theoretical results with data from the NIST database for the S II, Cl III, and Ar IV ions.
| Av. difference (in %) | No. of levels in Ref. | Ref. |
|---|---|---|
| S II | ||
| 0.34 | 134(126) | RCI |
| 0.22 | 134(126) | RCI(CV) |
| 0.48 | 67(67) | 1 |
| 0.06 | 70(70) | 2 |
| 1.12 | 49(49) | 3 a |
| 1.18 | 49(49) | 3 b |
| Cl III | ||
| 0.38 | 87(63) | RCI |
| 0.18 | 87(63) | RCI(CV) |
| 0.55 | 67(54) | 1 |
| 1.01 | 68(51) | 4 a |
| 1.81 | 68(51) | 4 b |
| Ar IV | ||
| 0.47 | 103(56) | RCI |
| 0.21 | 103(56) | RCI(CV) |
| 0.60 | 62(51) | 1 |
Notes. The numbers in parentheses show the number of levels compared with the NIST database.
References. (1) Fischer et al. (2006); (2) Tayal & Zatsarinny (2010); (3) Kisielius et al. (2014) (a – HF data, b – quasirelativistic data); (4) Sossah & Tayal (2012) (a – MCHF calculations with 2893 configurations, b – MCHF calculations with 436 configurations).
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