Hyperfine Structure Study of Several Lines of²⁰⁷Pb I – Part II

Abstract

In our earlier experiment we measured hyperfine splittings of lines from the arrays 6p8s → 6p2 and 6p7s → 6p2 of Pb I. This time we have investigated lines belonging to the transition arrays: 6p7d → 6p2, 6p6d → 6p2, 6p8p → 6p7s. In the analysis of the spectra we used a computer simulation technique. Our experiment yields the following hyperfine splitting constants A: A(6p2 1D2) = (20.69 ± 0.21) mK, A(6p7s 3P1) = (293.93 ± 0.56) mK, A(6p6d 3F2) = (103.22 ± 0.31) mK, A(6p6d 3F3) = (69.12 ± 0.28) mK, A(6p8p 3P1) = (224.26 ± 1.37) mK, A(6p8p 3D2) = (108.02 ± 1.14) mK and A(6p7d 3D1) = (-100.86 ± 0.53) mK. Our results are compared with recent theory and other experiments.