Houbiers, M.Stoof, H.T.C.McAlexander, W.I.Hulet, R.G.2015-03-302015-03-301998Houbiers, M., Stoof, H.T.C., McAlexander, W.I., et al.. "Elastic and inelastic collisions of 6Li atoms in magnetic and optical traps." <i>Physical Review A,</i> 57, no. 3 (1998) American Physical Society: R1497-R1500. http://dx.doi.org/10.1103/PhysRevA.57.R1497.https://hdl.handle.net/1911/79418We use a full coupled-channels method to calculate collisional properties of magnetically or optically trapped ultracold 6Li. The magnetic-field dependence of the s-wave scattering lengths of several mixtures of hyperfine states are determined, as are the decay rates due to exchange collisions. In one case, we find Feshbach resonances at B=0.08T and B=1.98T. We show that the exact coupled-channels calculation is well approximated over the entire range of magnetic fields by a simple analytical calculation.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1103/PhysRevA.57.R1497