Abstract

A new analysis of the Sb ii spectrum has been performed. It leads to the classification of three lines connecting the so-far-unknown level $5s5p^3\hspace{0.17em}{{}^{5}S}_2^{\circ }$ with the ground configuration. For the level energy, we have found that $E({{}^{5}S}_2^{\circ })=51\hspace{0.17em}723\hspace{0.17em}{\text{cm}}^{-1}$. The hyperfine structure of the lines has been studied.

© 1987 Optical Society of America

Hyperfine structure and isotope shift of 52-h ²⁰³Pb in the 6p^{2 3}P₀–6p7s³P₁ 283.3-nm transition

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