Abstract
We observe the time dependence of a cold-atom collision in a pulsed photoassociation experiment. For a g-wave shape resonance in the 85Rb+85Rb system we measure the time needed to build up the resonant state by tunneling through the centrifugal barrier. Combining this with time-independent 85Rb and 87Rb photoassociation we determine the resonance energy and find evidence for the decay of the shape resonance into inelastic channels. We also determine the 85Rb+85Rb and 87Rb+87Rb C6 coefficient and triplet scattering lengths without relying on ab initio calculations.
Original language | English |
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Pages (from-to) | 5194-5197 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 77 |
Issue number | 26 |
DOIs | |
Publication status | Published - 1996 |