Abstract
We study three-body recombination in an optically trapped ultracold gas of cesium atoms with precise magnetic control of the -wave scattering length . At large positive values of , we measure the dependence of the rate coefficient on and confirm the theoretically predicted scaling proportional to . Evidence of recombination heating indicates the formation of very weakly bound molecules in the last bound energy level.
- Received 14 April 2003
DOI:https://doi.org/10.1103/PhysRevLett.91.123201
©2003 American Physical Society