Feshbach resonances in an ultracold Li-7-Cs-133 Bose-Bose mixture

We present a study of interspecies Feshbach resonances in ultracold( 7)Li-Cs-133 Bose-Bose mixtures. We locate ten interspecies resonances in three different spin-state combinations. By comparing to coupled-channel calculations, we assign six of the resonances to s-wave channels and the rest to p-wave channels. We use the s-wave resonances to refine the ground-state potentials of LiCs in the coupled-channel calculations and then obtain an accurate characterization of the scattering and bound-state properties of the mixtures. Our results will be useful for future experiments with ultracold Li-7-Cs-133 mixtures.