Physics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confefd09b&link_type=abstract
"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec
Physics
Mini-Symposium: Fundamental Physics
Scientific paper
Theoretical calculations predict that internal electric fields as high as 90 GV/cm can be attained by polarizing the ^3Δ_1 state of ThF^+. Consequently, this ion is of interest for investigation of the dipole moment of the electron. However, spectroscopic data have not been reported previously for ThF or ThF^+. We have used laser induced fluorescence and resonantly enhanced two-photon ionization to examine ThF. Multiple electronic transitions were observed in the 19530-21300 wn range. Rotationally resolved data have been obtained, and the ground state is shown to be X^2Δ_3_/_2. Pulsed field ionization - zero electron kinetic energy spectra have been recorded for the ThF+ cation. Vibronic progressions of the X^1Σ^+ and excited ^3Δ states have been identified. The term energy for the ^3Δ_1 state was found to be T_0=330 wn. Details of the experiments and spectroscopic constants for ThF and ThF^+ will be reported.
E. R. Meyer and J. L. Bohn, Phys. Rev. A At., Mol., Opt. Phys. 78, 010502/1 (2008). "Prospects for an electron electric-dipole moment search in metastable ThO and ThF+"
Antonov Ivan O.
Barker Beau J.
Heaven Michael C.
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