Two-photon photoassociation spectroscopy of the Σ+2 YbLi molecular ground state

  title={Two-photon photoassociation spectroscopy of the 
 YbLi molecular ground state},
  author={Alaina M. Green and Jun Hui See Toh and Richard J. Roy and Ming Li and Svetlana Kotochigova and Subhadeep Gupta},
  journal={Physical Review A},
We report on measurements of the binding energies of several weakly bound vibrational states of the paramagnetic $^{174}$Yb$^{6}$Li molecule in the electronic ground state using two-photon spectroscopy in an ultracold atomic mixture confined in an optical dipole trap. We theoretically analyze the experimental spectrum to obtain an accurate description of the long-range potential of the ground state molecule. Based on the measured binding energies, we arrive at an improved value of the… 

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