Recombination of three ultracold fermionic atoms

Three-body recombination of identical, spin-polarized fermionic atoms in the ultracold limit is investigated using model interactions. The mechanisms for recombination are parametrized by the scattering volume V-p and described in the framework of the adiabatic hyperspherical representation. We have calculated the recombination rate K-3 as a function of V-p and have found K(3)proportional to\V-p\(8/3) for small \V-p\. Recombination near a two-body Feshbach resonance can thus be significant.