Elastic and inelastic collisions of cold spin-polarized 133Cs atoms

We present theoretical calculations of thermally averaged elastic cross sections and spin-relaxation rate coefficients in the temperature range 0.1 to 300 mu K for magnetically trapped, doubly polarized cesium atoms. The calculations reproduce the recent experimental results of Arndt et al. (1997) and Soding et al. (1998) for cases where the a (3)Sigma(u) ground state potential of Cs-2 possesses a large scattering length (\A(3)\ > 35 nm) and the magnitude of the second-order spin-orbit interaction is scaled to reproduce room temperature scattering data.