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3 results on '"YBF"'

2. Probing the Electron EDM with Cold Molecules.

Author

Sauer, B. E., Ashworth, H. T., Hudson, J. J., Tarbutt, M. R., and Hinds, E. A.

Subjects
*DIPOLE moments, *MOLECULES, *DIELECTRICS, *ELECTRONS, *PHYSICAL & theoretical chemistry, *SYMMETRY (Physics)
Abstract

We present progress towards a new measurement of the electron electric dipole moment using a cold supersonic beam of YbF molecules. Data are currently being taken with a sensitivity of 10-27e.cm/√ day. We therefore expect to make an improvement over the Tl experiment of Commins' group, which currently gives the most precise result. We discuss the systematic and statistical errors and comment on the future prospect of making a measurement at the level of 10-29e.cm/√day. [ABSTRACT FROM AUTHOR]

Published
2006
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3. The [557]-X²∑⁺ and [561]- X²∑⁺ bands of ytterbium fluoride,¹⁷⁴YbF

Author

LIM, J, Almond, J, Tarbutt, MR, Nguyen, DT, Steimle, TC, and European Research Council

Subjects
Technology, Laser cooling molecules, Science & Technology, SPECTROSCOPY, Chemical Physics, A(2)PI(1/2), 0306 Physical Chemistry (Incl. Structural), Physics, Physics, Atomic, Molecular & Chemical, DIATOMIC MOLECULE, TRANSITION-METAL-COMPLEXES, MONOFLUORIDE, YBF, Physical Sciences, Ytterbium fluoride, SPIN-ROTATION, Visible spectra, HYPERFINE COUPLING-CONSTANTS, BEAM SOURCE, X(2)SIGMA(+) STATE
Abstract

The [557] - X2Σ+(v = 0, 1, 2, 3) and the [561] - X2Σ+ (v = 2) visible electronic transitions of YbF have been recorded at a near-natural linewidth spectral resolution using both supersonically cooled and buffer-gas cooled beams. The 174YbF isotopologue spectral features were analyzed to produce a new set of spectroscopic parameters for the X2Σ+(v = 2), X2Σ+(v = 3), [557], and [561] states. This study will facilitate ongoing work to produce ultracold YbF molecules by laser cooling in order to improve measurements of the electron’s electric dipole moment.

Published
2017

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