F. Hassini, Z. Ben Ahmed, O. Robaux, J. Vergès, and J.-F. Wyart, "Study of fine and hyperfine structures in the spectrum of neutral antimony (121Sb i)," J. Opt. Soc. Am. B 5, 2060-2075 (1988)
The spectrum of neutral 121Sb emitted by an electrodeless discharge lamp has been observed in the range 2 536–24 786 cm−1. The wavelengths of 617 lines have been measured. The hyperfine-structure splitting factors of the levels were established for 77% of these lines. Thirty-two new energy levels were found, and several J values were revised. The Slater–Condon method was used for the interpretation of levels in both parities, and the multiconfiguration eigenfunctions were applied to the parametric study of the hyperfine-structure factors A and B. The multichannel quantum-defect theory analysis of high odd levels having J = 1/2 and J = 3/2 was also revised.
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The hyperfine-structure analysis leads to A = 6.83 mK and B = 12.07 mK for the upper level and A = 38.13 and B = −22.22 mK for the lower level.
The hyperfine-structure analysis leads to A = 53.69 mK for the upper level with J = 1/2 and A = 36.61 and B = −25.35 mK for the lower level with J = 3/2.
Table 2
Odd Energy Levels of Neutral Antimony Revised, Newly Established, or Redesignated in the Present Worka
The deviations ΔE = Eexp − Eth use theoretical energies Eth determined in the Slater–Condon-type calculations of the (groups of) configuration(s) 5p3, 5p2(6p + 7p + 8p + 9p), and 5p2(4f + 5f). The deviations ΔA and ΔB on the magnetic and electric hyperfine constants make use of Ath and Bth values determined in the analysis of 5p3 and of 5p2(6p + 7p). Hyperfine-structure data are in 10−3 cm−1.
Energy level first determined in Ref. 1.
Energy level determined in the present work.
The J value has been revised.
The experimental value corresponding to this deviation was discarded from the least-squares fit.
Energy level first determined in Ref. 5.
The J value was not given in this reference.
Table 3
Even Energy Levels of Neutral Antimony Revised, Newly Established, or Redesignated in the Present Worka
The deviations E = Eexp − Eth use theoretical energies Eth determined in the Slater–Condon-type calculations of the group of configurations 5s5p4 + 5s25p2(6s + 7s + 5d + 6d). The deviations ΔA = Aexp − Ath, the experimental values of the hyperfine-structure factors A and B, and their standard error are in 10−3 cm−1.
Energy level first determined in Ref. 1.
The experimental value corresponding to this deviation was not introduced in the least-squares fit.
Energy level determined in the present work.
The J value has been determined in the present work.
The J value has been revised.
From the hyperfine-structure analysis there is no experimental evidence for the J value.
Energy level first determined in Ref. 2.
The designation is tentative.
Table 4
Fitted Energy Parameters and Their Standard Errors (in cm−1) in the Odd and Even Configurations of Neutral Antimony
Held in a constant ratio with the parameter above.
Held in a constant ratio with the same parameter in 5p27p.
Fixed parameter.
Held in a constant ratio with the same parameter in 5p26s.
Table 5
Hyperfine Structure Parameters (in 10−3 cm−1) Fitted in the Configurations of Neutral 121Sb
Held in the same ratio as spin–orbit parameters with a5p(5p26s).
Held in a constant ratio with the parameter above.
Held in the same ratio as spin–orbit parameters with b5p02(5p26p).
Table 6
Multichannel Quantum-Defect Theory Analysis of the J = 3/2 Odd Levels of 5p2np
The μα parameters are fitted in two approximations: (1) using levels in the restricted range 68 800–69 371 cm−1, (2) using levels in the range 65 959–69 371 cm−1 and an energy dependence of μα.
The dμα is given relative to the first limit (69 431.4 cm−1 above the ground state6), and E is in Rydberg units.
Table 7
Multichannel Quantum-Defect Theory Analysis of the J = 1/2 Levels of 5p2np
The μα parameters are fitted in two approximations: (1) using levels in the restricted range 68 737–69 234 cm−1, (2) using levels in the range 65 882–69 234 cm−1 and an energy dependence of μα.
Tables (7)
Table 1
Emission Spectrum of Neutral 121Sb in the Range 2 536–24 786 cm−1
The hyperfine-structure analysis leads to A = 6.83 mK and B = 12.07 mK for the upper level and A = 38.13 and B = −22.22 mK for the lower level.
The hyperfine-structure analysis leads to A = 53.69 mK for the upper level with J = 1/2 and A = 36.61 and B = −25.35 mK for the lower level with J = 3/2.
Table 2
Odd Energy Levels of Neutral Antimony Revised, Newly Established, or Redesignated in the Present Worka
The deviations ΔE = Eexp − Eth use theoretical energies Eth determined in the Slater–Condon-type calculations of the (groups of) configuration(s) 5p3, 5p2(6p + 7p + 8p + 9p), and 5p2(4f + 5f). The deviations ΔA and ΔB on the magnetic and electric hyperfine constants make use of Ath and Bth values determined in the analysis of 5p3 and of 5p2(6p + 7p). Hyperfine-structure data are in 10−3 cm−1.
Energy level first determined in Ref. 1.
Energy level determined in the present work.
The J value has been revised.
The experimental value corresponding to this deviation was discarded from the least-squares fit.
Energy level first determined in Ref. 5.
The J value was not given in this reference.
Table 3
Even Energy Levels of Neutral Antimony Revised, Newly Established, or Redesignated in the Present Worka
The deviations E = Eexp − Eth use theoretical energies Eth determined in the Slater–Condon-type calculations of the group of configurations 5s5p4 + 5s25p2(6s + 7s + 5d + 6d). The deviations ΔA = Aexp − Ath, the experimental values of the hyperfine-structure factors A and B, and their standard error are in 10−3 cm−1.
Energy level first determined in Ref. 1.
The experimental value corresponding to this deviation was not introduced in the least-squares fit.
Energy level determined in the present work.
The J value has been determined in the present work.
The J value has been revised.
From the hyperfine-structure analysis there is no experimental evidence for the J value.
Energy level first determined in Ref. 2.
The designation is tentative.
Table 4
Fitted Energy Parameters and Their Standard Errors (in cm−1) in the Odd and Even Configurations of Neutral Antimony
Held in a constant ratio with the parameter above.
Held in a constant ratio with the same parameter in 5p27p.
Fixed parameter.
Held in a constant ratio with the same parameter in 5p26s.
Table 5
Hyperfine Structure Parameters (in 10−3 cm−1) Fitted in the Configurations of Neutral 121Sb
Held in the same ratio as spin–orbit parameters with a5p(5p26s).
Held in a constant ratio with the parameter above.
Held in the same ratio as spin–orbit parameters with b5p02(5p26p).
Table 6
Multichannel Quantum-Defect Theory Analysis of the J = 3/2 Odd Levels of 5p2np
The μα parameters are fitted in two approximations: (1) using levels in the restricted range 68 800–69 371 cm−1, (2) using levels in the range 65 959–69 371 cm−1 and an energy dependence of μα.
The dμα is given relative to the first limit (69 431.4 cm−1 above the ground state6), and E is in Rydberg units.
Table 7
Multichannel Quantum-Defect Theory Analysis of the J = 1/2 Levels of 5p2np
The μα parameters are fitted in two approximations: (1) using levels in the restricted range 68 737–69 234 cm−1, (2) using levels in the range 65 882–69 234 cm−1 and an energy dependence of μα.