Kinetics of polarization in non-relativistic scattering

An approach is developed, which essentially simplifies the derivation of the kinetic equation for polarization in non-relativistic scattering. This approach is applicable for collisions of projectile particles with a target for any spin of the colliding particles. A detailed consideration is performed for the case of spin 1/2 projectile particles interacting with spin 1/2 particle of a target. The solution of the kinetic equation for the case of zero initial polarization is presented as well.