Abstract
Hyperfine structures, isotope shifts, Stark and Zeeman effects of 5 transitions in Sm \captionsizeI are investigated by means of atomic-beam laser spectroscopy. We measure the transitions from 10801.10- and 12313.11-cm -1 metastable levels with 4 f 6 5 d 6 s configuration to 27925.31-, 28704.25-, 29041.31- and 30753.65-cm -1 odd-parity levels, which are candidates in order to measure parity nonconserving effect in Sm. Hyperfine constants A and B for odd-mass isotopes 147 Sm and 149 Sm are obtained except for 30753.65-cm -1 level. Isotope shifts of the transitions are determined and specific mass shift and field shift are also derived by King-plot analysis. Stark splitting is resolved for the transition between 12313.11- and 30753.65-cm -1 levels, and the tensor polarizability of the upper level is determined to be α 2 = 535(12) kHz/(kV/cm) 2 . From Zeeman splitting, g -factors are precisely determined for 4 levels.
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