Abstract
We report experimental evidence of the sympathetic cooling of with down to , obtained in a tight-confining magnetic trap. This allowed us to perform a direct measurement of the elastic cross section of below . The result obtained for the triplet scattering length, Bohr radii, agrees with previous results derived from photoassociation spectra and from Feshbach spectroscopy of .
- Received 30 November 2006
DOI:https://doi.org/10.1103/PhysRevA.75.022715
©2007 American Physical Society