Table 1
Parameters of the least-squares fit of energy levels of the 4f4, 4f35d, 4f36s, and 4f36p configurations of Nd III in Cowan’s codes (extract).
| Conf. | Param. | LSF(a) (cm−1) | G(b) | HFR(a) (cm−1) | Ratio(a, c) |
|---|---|---|---|---|---|
| 4f4 | Eav | 32 348(22) | 35 503 | −3156 | |
| F2(4f,4f) | 71 335(105) | 92636 | 0.770 | ||
| F4(4f,4f) | 40 755(201) | 57680 | 0.707 | ||
| F6(4f,4f) | 35 267(f) | 3 | 41 372 | 0.852 | |
| α (4f) | 8(f) | 0 | |||
| β (4f) | −310(f) | 0 | |||
| γ (4f) | 1110(f) | 0 | |||
| ζ (4f) | 782(4) | 849 | 0.921 | ||
| 4f35d | Eav | 44999(43) | 36 770 | 8229 | |
| F2(4f,4f) | 78 070(397) | 1 | 101 378 | 0.770 | |
| F4(4f,4f) | 49 616(383) | 2 | 63 552 | 0.781 | |
| F6(4f,4f) | 38 949(554) | 3 | 45 705 | 0.852 | |
| α(4f) | 22(f) | 0 | |||
| β(4f) | −600(f) | 0 | |||
| γ(4f) | 1450(f) | 0 | |||
| ζ(4f) | 882(2) | 4 | 947 | 0.932 | |
| ζ(5d) | 785(7) | 831 | 0.945 | ||
| F1(4f,5d) | 953(81) | 0 | |||
| F2(4f,5d) | 19310(119) | 26408 | 0.731 | ||
| F3(4f,5d) | 0(f) | 0 | |||
| F4(4f,5d) | 13 958(275) | 13 022 | 1.072 | ||
| G1(4f,5d) | 9138(39) | 12824 | 0.713 | ||
| G2(4f,5d) | 1689(198) | 0 | |||
| G3(4f,5d) | 9205(142) | 10202 | 0.902 | ||
| G4(4f,5d) | 0(f) | 0 | |||
| G5(4f,5d) | 5148(126) | 7735 | 0.666 | ||
| 4f36s | Eav | 55 647(49) | 47956 | 7691 | |
| F2(4f,4f) | 78 723(400) | 1 | 102226 | 0.770 | |
| F4(4f,4f) | 50 064(387) | 2 | 64126 | 0.781 | |
| F6(4f,4f) | 39 310(559) | 3 | 46129 | 0.852 | |
| α(4f) | 22(f) | 0 | |||
| β(4f) | −600(f) | 0 | |||
| γ(4f) | 1450(f) | 0 | |||
| ζ(4f) | 886(2) | 4 | 953 | 0.932 | |
| G3(4f,6s) | 2393(72) | 2870 | 0.834 | ||
| 4f36p | 88 343(29) | 79811 | 8544 | ||
| F2(4f,4f) | 78 655(146) | 102329 | 0.769 | ||
| F4(4f,4f) | 49 923(164) | 64196 | 0.778 | ||
| F6(4f,4f) | 39 344(f) | 3 | 46180 | 0.852 | |
| α(4f) | 22(f) | 0 | |||
| β(4f) | −600(f) | 0 | |||
| γ(4f) | 1450(f) | 0 | |||
| ζ(4f) | 888(2) | 954 | 0.930 | ||
| ζ(6p) | 2467(10) | 1989 | 1.240 | ||
| F1(4f,6p) | 739(45) | 0 | |||
| F2(4f,6p) | 6396(359) | 7861 | 0.814 | ||
| G2(4f,6p) | 2082(55) | 1981 | 1.051 | ||
| G3(4f,6p) | 0(f) | 0 | |||
| G4(4f,6p) | 1490(93) | 1791 | 0.832 | ||
Notes. The full version of this table is available at the CDS. (a)Parameter values determined in the ab initio pseudo-relativistic Hartree-Fock (HFR) and least-squares-fitted (LSF) calculations and their ratio. Standard deviations of the fitted LSF parameters are in parentheses, where ‘f’ means the parameter was fixed. (b) Parameters in each numbered group (G) were linked together by sharing the same ratios to their corresponding HFR values. (c)Differences between LSF and HFR parameters are given for Eav.
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