Observation of a shape resonance in the collision of two cold [Formula Presented] atoms

H. M.J.M. Boesten; C. C. Tsai; J. R. Gardner; D. J. Heinzen; B. J. Verhaar

doi:10.1103/PhysRevA.55.636

Observation of a shape resonance in the collision of two cold [Formula Presented] atoms

H. M.J.M. Boesten, C. C. Tsai, J. R. Gardner, D. J. Heinzen, B. J. Verhaar

Department of Physics

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109 Citations (Scopus)

Abstract

We observe a shape resonance in the scattering of two ultracold [Formula Presented] atoms, causing the colliding atoms to form a long-living compound system inside an l=2 centrifugal barrier. Its existence follows from a photoassociation experiment in a gas sample of doubly polarized [Formula Presented] atoms. Using it we are able to carry out direct determinations of the triplet scattering length for [Formula Presented], relevant to Bose-Einstein condensation experiments, and of the Rb+Rb [Formula Presented] dispersion coefficient. Consequences for the [Formula Presented] scattering length are discussed.

Original language	English
Pages (from-to)	636-640
Number of pages	5
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	55
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.55.636
Publication status	Published - 1997 Jan 1

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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abstract = "We observe a shape resonance in the scattering of two ultracold [Formula Presented] atoms, causing the colliding atoms to form a long-living compound system inside an l=2 centrifugal barrier. Its existence follows from a photoassociation experiment in a gas sample of doubly polarized [Formula Presented] atoms. Using it we are able to carry out direct determinations of the triplet scattering length for [Formula Presented], relevant to Bose-Einstein condensation experiments, and of the Rb+Rb [Formula Presented] dispersion coefficient. Consequences for the [Formula Presented] scattering length are discussed.",

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AU - Boesten, H. M.J.M.

AU - Tsai, C. C.

AU - Gardner, J. R.

AU - Heinzen, D. J.

AU - Verhaar, B. J.

PY - 1997/1/1

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AB - We observe a shape resonance in the scattering of two ultracold [Formula Presented] atoms, causing the colliding atoms to form a long-living compound system inside an l=2 centrifugal barrier. Its existence follows from a photoassociation experiment in a gas sample of doubly polarized [Formula Presented] atoms. Using it we are able to carry out direct determinations of the triplet scattering length for [Formula Presented], relevant to Bose-Einstein condensation experiments, and of the Rb+Rb [Formula Presented] dispersion coefficient. Consequences for the [Formula Presented] scattering length are discussed.

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