Abstract
We present experimental observations of seven vibrational levels, –26, of the excited state of Li molecules by the photoassociation (PA) of a degenerate Fermi gas of Li atoms. For each vibrational level, we resolve the rotational structure using a Feshbach resonance to enhance the PA rates from -wave collisions. We also determine the spin-spin and spin-rotation interaction constants for this state. The absolute uncertainty of our measurements is cm ( kHz). We use this data to further refine an analytic potential for this state.
- Received 21 September 2012
DOI:https://doi.org/10.1103/PhysRevA.87.052505
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