Broadband velocity modulation spectroscopy of HfF^+: towards a measurement of the electron electric dipole moment

Abstract

Precision spectroscopy of trapped HfF^+ will be used in a search for the permanent electric dipole moment of the electron (eEDM). While this dipole moment has yet to be observed, various extensions to the standard model of particle physics (such as supersymmetry) predict values that are close to the current limit. We present extensive survey spectroscopy of 19 bands covering nearly 5000 cm^(-1) using both frequency-comb and single-frequency laser velocity-modulation spectroscopy. We obtain high-precision rovibrational constants for eight electronic states including those that will be necessary for state preparation and readout in an actual eEDM experiment.

13 pages, 7 figures, 3 tables

References in corpus (4)

• The Diffuse Interstellar Bands: A Major Problem in Astronomical Spectroscopy
• Cavity-enhanced direct frequency comb spectroscopy
• Candidate molecular ions for an electron electric dipole moment experiment
• Prospects for an electron electric dipole moment search in metastable ThO and ThF${}^{+}$

Cited by in corpus (10)

• Combined 4-component and relativistic pseudopotential study of ThO for the electron electric dipole moment search
• Ab initio study of radium monofluoride, RaF, as a candidate to search for P- and T,P- violation effects
• Theoretical study of ThF${}^{+}$ in the search for T,P-violation effects: Effective state of a Th atom in ThF${}^{+}$ and ThO compounds
• Application of a Relativistic Coupled-Cluster Theory to the Effective Electric Field in YbF
• $\mathcal{P},\mathcal{T}$-Odd and Magnetic Hyperfine Interaction Constants and Excited-State Lifetime for HfF${}^{+}$
• Study of the scalar-pseudoscalar interaction in the francium atom
• Towards the search of T,P-odd interactions in lead monofluoride, PbF
• Enhanced effect of CP-violating nuclear magnetic quadrupole moment in HfF${}^{+}$ molecule
• TaO${}^{+}$, a Candidate Molecular Ion in Search of Physics Beyond the Standard Model
• Nuclear-spin dependent parity violation in diatomic molecular ions