Stark-modulation spectroscopy of the B(1)[3] state of PbO
Abstract
We report detailed spectroscopic measurements of the X(0)[3+](v=0) to B(1)[3] (v=5) transition in PbO. Using a Stark-modulated laser absorption technique, we have measured the hyperfine constant of 207PbO in the B(1) state, as well as B(1)(v=5) rotational constant, X-B isotope shifts, etc. The hyperfine structure of the B(1) state is of interest as a benchmark for calculations of PbO electronic structure, related to experiments to search for the electric dipole moment of the electron.
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