Collisional decay of 87Rb Feshbach molecules at 1005.8 G
Abstract
We present measurements of the loss-rate coefficients Kam and Kmm caused by inelastic atom-molecule and molecule-molecule collisions. A thermal cloud of atomic 87Rb is prepared in an optical dipole trap. A magnetic field is ramped across the Feshbach resonance at 1007.4 G. This associates atom pairs to molecules. A measurement of the molecule loss at 1005.8 G yields Kam=2 10-10 cm3/s. Additionally, the atoms can be removed with blast light. In this case, the measured molecule loss yields Kmm=3 10-10 cm3/s.
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