Magnetic Feshbach resonances in ${}^7\text{Li}{-}^{133}\text{Cs}$ mixtures

Motivated by the prospect of observing Efimov and Bose polaron physics in ultracold mixtures of bosonic atoms with large mass imbalance, this work investigates the magnetic Feshbach resonances between ${}^7\text{Li}$ and ${}^{133}\text{Cs}$. The resonances are predicted at the 1 gauss level using the model of Pires et al. [Phys. Rev. A, 90, 012710] obtained from experimental observations of resonances between ${}^6\text{Li}$ and ${}^{133}\text{Cs}$. It is found that a few resonances in a practical range of magnetic field intensity could be used to tune the scattering length between ${}^7\text{Li}$ and ${}^{133}\text{Cs}$ atoms. Opportunities for observing Efimov and Bose polaron physics are discussed.