M R Tarbutt et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 5013 doi:10.1088/0953-4075/35/24/306
M R Tarbutt1, J J Hudson1, B E Sauer1, E A Hinds1, V A Ryzhov2, V L Ryabov2 and V F Ezhov2
Show affiliationsWe have developed a pulsed supersonic beam of slow, cold YbF molecular radicals with an intensity of 1.4 × 109 YbF molecules per steradian per pulse in the X2 Σ+ (v = 0, N = 0) ground state. The translational and rotational temperatures of the beam are equal. The lowest temperature produced was 1.4 K and the slowest centre-of-mass velocity was 290 K. We show that YbF can be made either by ablating Yb metal into a fluorine-bearing carrier gas or by ablating solid precursors into a pure inert carrier gas. This source is suitable for injecting a molecule decelerator and for high-resolution laser-rf-double-resonance studies such as the measurement of the electron electric dipole moment.
37.10.Mn Slowing and cooling of molecules
33.15.Mt Rotation, vibration, and vibration-rotation constants
Issue 24 (28 December 2002)
Received 25 October 2002
Published 27 November 2002
M R Tarbutt et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 5013
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