Table 4
Experimental hyperfine structure constants Aexp and Bexp (in MHz) of the levels of odd parity of Nb i together with comparative values Aref and Bref, if available.
| E (cm-1) | Config., Term | J | λair (nm) | Aexp (MHz) | Amean (MHz) | Bexp (MHz) | Bmean (MHz) | Aref (MHz) | Bref (MHz) | Ref. | ||||||||
|
|
||||||||||||||||||
| 20 107.36 | 4d |
1/2 | 854.725 | –794.1 (2.6) | 0 | –794.7 (5) | 0 | (6) | ||||||||||
| 20 383.62 | 4d |
3/2 | 835.003 | 597.4 (4) | –14 (6) | 597.8 (5) | –13 (4) | (1) | ||||||||||
| 20 837.98 | 4d |
5/2 | 847.596 | 808.6 (6) | –15 (14) | 808.8 (4) | –14 (6) | (1) | ||||||||||
| 21 512.18 | 4d |
7/2 | 801.766 | 871.9 (6) | –24 (16) | 872.8 (5) | –27 (6) | (1) | ||||||||||
| 22 647.03 | 4d |
5/2 | 852.696 | –74.3 (1.4) | – | –78.5 (2) | – | (6) | ||||||||||
| 23 022.56 | 4d |
7/2 | 826.231 | 430.1 (6) | 430.1 (5) | 1 (16) | 430.3 (2) | – | (6) | |||||||||
| 834.601 | 424 (7) | – | ||||||||||||||||
| 23 243.87 | 4d |
3/2 | 762.113* | –14.4 (6) | – | –16.6 (3) | – | (6) | ||||||||||
| 23 536.77 | 4d |
9/2 | 800.248 | 629.9 (1.0) | 629.9 (2) | – | 632.6 (1) | – | (6) | |||||||||
| 813.519* | 629 (4) | – | ||||||||||||||||
| 23 574.14 | 4d |
5/2 | 790.209 | 512 (4) | 102 (26) | 514.1 (2) | 67 (5) | (1) | ||||||||||
| 24 203.05 | 4d |
11/2 | 771.680 | 751.3 (1.0) | 750.1 (1.2) | – | 752.3 (1) | – | (6) | |||||||||
| 788.526 | 754.3 (2.2) | – | ||||||||||||||||
| 843.981 | 748.8 (8) | 0 (60) | ||||||||||||||||
| 24 773.03 | 4d |
5/2 | 800.755 | 170.5 (1.2) | 17 (40) | 170.1 (5) | –11 (7) | (1) | ||||||||||
| 25 199.81 | 4d |
9/2 | 829.365 | 113.1 (4) | 33 (32) | 112.4 (4) | – | (6) | ||||||||||
| 26 067.06 | 4d |
3/2 | 803.773 | 938.9 (1.2) | 49 (32) | 943.5 (1.8) | 79 (3) | (5) | ||||||||||
| 26 165.79 | 4d |
7/2 | 758.320 | 299.1 (4) | 298.7 (1.3) | – | 297.6 (7) | – | (6) | |||||||||
| 767.833 | 294.9 (1.2) | 65 (20) | ||||||||||||||||
| 26 386.36 | 4d |
5/2 | 821.125 | 810.9 (1.0) | 64 (68) | 809.2 (5) | 64.2 (9.3) | (2) | ||||||||||
| 26 440.33 | 4d |
9/2 | 751.977 | 342 (8) | – | 337.6 (2) | 88.6 (8.1) | (2) | ||||||||||
| 26 552.40 | 4d |
1/2 | 773.586 | 430.3 (1.8) | 0 | 430.1 (5) | 0 | (2) | ||||||||||
| 26 717.73 | 4d |
1/2 | 763.815 | 507.0 (2.8) | 0 | 508.3 (4) | 0 | (2) | ||||||||||
| 26 896.68 | 4d |
7/2 | 833.284* | 181.3 (2.8) | –21 (40) | – | – | |||||||||||
| 26 936.86 | 4d |
3/2 | 785.604* | 39.9 (1.6) | – | 39.9 (6) | – | (6) | ||||||||||
| 27 359.70 | 4d |
5/2 | 827.769 | –20 (10) | –20 (0) | – | –22.4 (1.2) | – | (6) | |||||||||
| 840.627 | –20 (3) | 11 (32) | ||||||||||||||||
| 27 419.62 | 4d |
9/2 | 823.682 | 405.7 (8) | 47 (16) | 405.4 (9) | 94 (20) | (5) | ||||||||||
| 27 427.07 | 4d |
7/2 | 798.005 | 385.8 (4) | –52 (32) | 386.0 (5) | –38.2 (15.2) | (2) | ||||||||||
| 27 596.74 | 4d |
7/2 | 787.341 | –149.3 (8) | 60 (20) | –151.4 (7) | – | (3) | ||||||||||
| 27 614.10 | 4d |
5/2 | 786.266 | 616.2 (1.6) | – | 615 (2) | – | (1) | ||||||||||
| 27 666.46 | 4d |
1/2 | 817.623 | 725.5 (1.6) | 726.0 (3) | 0 | 729.7 (2.3) | 0 | (6) | |||||||||
| 819.065 | 726.2 (1.0) | 0 | ||||||||||||||||
| 27 797.44 | 4d |
5/2 | 775.090 | 569.0 (6) | 568.4 (8) | – | 568.4 (4.9) | – | (6) | |||||||||
| 810.783 | 567.4 (8) | 24 (14) | ||||||||||||||||
| 27 918.85 | 4d |
3/2 | 801.087 | 344.7 (2.4) | 344.2 (3) | –33 (12) | –33.5 (2.3) | 348 (1) | – | (6) | ||||||||
| 802.471 | 343.7 (1.4) | –24 (16) | ||||||||||||||||
| 802.878 | 344.4 (1.4) | –35 (6) | ||||||||||||||||
| 28 079.09 | 4d |
3/2 | 758.526 | 677.8 (1.6) | 676.8 (5) | –36 (24) | –34.9 (7) | 676.2 (3) | – | (6) | ||||||||
| 790.932 | 676.8 (2.2) | –34 (8) | ||||||||||||||||
| 792.281 | 676.1 (1.2) | –36 (10) | ||||||||||||||||
| 28 433.74 | 4d |
9/2 | 861.445 | 178.5 (6) | –60 (6) | 179.5 (4) | –48 (12) | (1) | ||||||||||
| 28 445.33 | 4d |
5/2 | 770.308 | 617.0 (1.0) | 616.4 (1.2) | –75 (20) | –70 (10) | 614 (1) | – | (6) | ||||||||
| 768.660 | 613.9 (2.0) | –47 (46) | ||||||||||||||||
| 28 535.36 | 4d |
7/2 | 754.338 | 659.2 (1.0) | – | 660.5 (9) | – | (6) | ||||||||||
| 28 549.42 | 4d |
5/2 | 753.538 | 676.7 (1.0) | 677.0 (3) | –13 (22) | –9 (5) | 676.9 (9) | – | (6) | ||||||||
| 762.557 | 677.3 (6) | 1 (28) | ||||||||||||||||
| 764.179 | 676.1 (1.6) | –22 (70) | ||||||||||||||||
| 31 025.52 | 4d |
7/2 | 833.743 | 361.7 (1.2) | – | – | – | |||||||||||
| 31 378.58 | 4d |
11/2 | 845.672 | 791.1 (1.2) | –236 (50) | – | – | |||||||||||
| 31 800.74 | 4d |
7/2 | 842.317 | 220 (7) | – | 217.4 (9) | – | (6) | ||||||||||
| 31 807.55 | 4d |
5/2 | 816.847* | 450 (8) | 451.9 (1.4) | – | – | – | ||||||||||
| 782.696* | 453 (6) | – | ||||||||||||||||
| 31 933.68 | 4d |
5/2 | 808.515 | 567.5 (1.4) | – | – | – | |||||||||||
| 31 973.24 | 4d |
7/2 | 772.673 | 742.5 (1.0) | 742.6 (1) | 56 (44) | 53 (3) | – | – | |||||||||
| 839.231 | 742.9 (2.4) | 50 (40) | ||||||||||||||||
| 32 013.40 | 4d |
5/2 | 827.490 | 538 (14) | – | – | – | |||||||||||
| 32 087.58 | 4d |
7/2 | 765.904 | 317.7 (8) | – | 316 (2) | – | (1) | ||||||||||
| 32 213.94 | 4d |
9/2 | 758.561 | 594.7 (4) | 594.6 (2) | – | –1 (22) | 594.8 (1.5) | – | (6) | ||||||||
| 789.857 | 594.5 (1.8) | –14 (32) | ||||||||||||||||
| 822.609 | 593.2 (2.0) | 35 (52) | ||||||||||||||||
| 32 248.69 | 4d |
3/2 | 811.682 | 594 (6) | 593.6 (2) | – | – | – | ||||||||||
| 788.429 | 593.5 (2.6) | – | ||||||||||||||||
| 32 333.18 | 4d |
7/2 | 751.759 | 451.3 (1.2) | – | 451.3 (4.4) | – | (6) | ||||||||||
| 32 501.33 | 4d |
7/2 | 803.606 | 593.8 (1.2) | 592.2 (1.4) | –25 (14) | 589.7 (1.7) | – | (3) | |||||||||
| 773.026 | 591.0 (1.0) | – | ||||||||||||||||
| 32 605.39 | 4d |
9/2 | 766.161 | 272.5 (1.6) | – | 270.5 (1) | – | (6) | ||||||||||
| 32 623.02 | 4d |
3/2 | 787.741 | 499.5 (2.2) | – | – | – | |||||||||||
| 32 654.48 | 4d |
5/2 | 763.979* | 330 (14) | 318.5 (1.5) | – | 321 (11) | – | (6) | |||||||||
| 785.793 | 318.3 (1.8) | – | ||||||||||||||||
| 32 899.08 | 4d |
7/2 | 778.709 | 203 (5) | – | 218.4 (12.1) | – | (6) | ||||||||||
| 32 923.87 | 4d |
9/2 | 777.208 | 667.4 (1.6) | –110 (100) | 668.9 (3.1) | – | (3) | ||||||||||
| 33 003.89 | 4d |
7/2 | 772.403 | 441 (4) | – | – | – | |||||||||||
| 35 156.94 | 4d |
9/2 | 818.103 | 517 (5) | – | 510.0 (3.1) | – | (6) | ||||||||||
| 35 630.62 | 4d |
11/2 | 794.565 | 548 (4) | – | – | – | |||||||||||
Notes. Configurations and terms according to Kröger et al. (2007); the wavelength given in the fifth column specifies the line that was used to determine the Aexp and Bexp values; when a hyperfine structure constant was determined by more than one line, the weighted mean value Amean and Amean, respectively, are calculated, using error bar of Aexp and Bexp as weight. In column Amean, twice the standard deviation that resulted from the weighted mean value calculation is given as error.
Reference. (1) Başar et al. (2008); (2) Fraenkel et al. (1988); (3) Er et al. (2011); (4) Kröger (2007); (5) Bouzed et al. (2003); (6) Kröger et al. (2010).
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