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11 papers · 2 filters
Optical Spectroscopy of Tungsten Carbide for Uncertainty Analysis in Electron Electric Dipole Moment Search
J. Lee, J. Chen, L. V. Skripnikov +4
We perform laser induced fluorescence(LIF) spectroscopy on a pulsed supersonic beam of tungsten carbide(WC) molecules, which has been proposed as a candidate molecular system for a…
Calculation of the parity and time reversal violating interaction in ^{225}RaO
A. D. Kudashov, A. N. Petrov, L. V. Skripnikov +3
The 10-electron generalized relativistic effective core potential and the corresponding correlation spin-orbital basis sets are generated for the Ra atom and the relativistic coupl…
Linear polyatomic molecules with Π ground state: sensitivity to variation of the fundamental constants
M. G. Kozlov
In polyatomic molecules with Π electronic ground state the ro-vibrational spectrum can be strongly modified by the Renner-Teller effect. The linear form of C3H molecule has particu…
Blackbody radiation shift in the Sr optical atomic clock
M. S. Safronova, S. G. Porsev, U. I. Safronova +2
We evaluated the static and dynamic polarizabilities of the 5s^2 ^1S_0 and 5s5p ^3P_0^o states of Sr using the high-precision relativistic configuration interaction + all-order met…
Ytterbium in quantum gases and atomic clocks: van der Waals interactions and blackbody shifts
M. S. Safronova, S. G. Porsev, Charles W. Clark
We evaluated the C_6 coefficients of Yb-Yb and Yb -alkali/group II van der Waals interactions with 2% uncertainty. The only existing results for such quantities are for the Yb-Yb d…
Broadband velocity modulation spectroscopy of HfF^+: towards a measurement of the electron electric dipole moment
Kevin C. Cossel, Daniel N. Gresh, Laura C. Sinclair +9
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, v…