Analytic perturbation functions for static interactions in perturbed angular correlations of ®rays

Analytic expressions are presented for powder and single crystal perturbation functions in ®–®-angular correlations for static interactions. Magnetic dipole interactions for arbitrary spin as well as non-axially symmetric electric quadrupole interactions up to spin 5/2 are treated. Symmetry properties of all matrices involved are discussed, as well as their consequences for the perturbation functions. A new complementarity rule for powder perturbation functions is presented.