LONGITUDINAL AND TRANSVERSE SPIN DIFFUSION IN POLARIZED HE-3-HE-4 SOLUTIONS

Spin dynamics for arbitrarily polarized and very dilute 3He-4He solutions are described. We generalize previous work to include 3He-4He phenomenological interactions, and we calculate longitudinal and transverse spin diffusion coefficients and the identical-particle spin-rotation parameter. Good agreement is found in comparison with recent data. The s-wave approximation is found to be inadequate and mean-field corrections are important