ThF$^{+}$ AS A CANDIDATE FOR eEDM MEASUREMENTS
Loading...
Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The low-lying $^{3}\Delta_{1}$ state of ThF$^{+}$ has advantageous properties for studies of the electron electric dipole moment. Calculations indicate that internal fields as high as 90 GV/cm can be generated, and there is just one isotope of ThF with significant natural abundance. Previous experiments show two low-lying electronic states of ThF$^{+}$ spaced by 315 cm$^{-1}$ (JCP 136, 104305 (2012)). These are $^{1}\Sigma$ and $^{3}\Delta_{1}$, but the ordering is still in question. Experiments are in progress to determine the electronic angular momentum of the ground state. Laser excitation spectra for ThF$^{+}$ have been recorded for transitions in the 19300-21100 cm$^{-1}$ range. For eEDM studies it is technically more convenient to work with lower energy transitions. Survey spectra covering the range 15000-19000 cm$^{-1}$ are currently being recorded. Results from these measurements will be presented and their relevance to possible eEDM studies will be discussed.
Description
Author Institution: Department of Chemistry, Emory University, Atlanta, GA 30322