Stern-Gerlach effect without magnetic-field gradient

The Stern-Gerlach effect is the well-known spin-dependent splitting of a ne utral particle beam by a magnetic-field gradient. Guided by the pseudomagne tic analogy, Ne performed a similar experiment where no magnetic-field grad ient is involved. The effect is due to the spin-dependence of neutron scatt ering from polarised nuclei, i.e. caused by the strong interaction between neutrons and nuclei. The beam splitting is proportional to the nuclear pola risation and to the spin-dependent part of the neutron scattering length. T hus it can be used to measure one of both quantities.