Nuclear moments of inertia calculated from the cranking model show the dependence on pairing correlation to be nearly exponential over most of the region of physical interest. Furthermore, the uncorrelated wave functions yield moments of inertia deviating in some cases considerably from rigid-body values. The exponential relation is applied to the calculations of rotational energies in a pairing stretch model. With two adjustable parameters the energy fits are quite good.

[NUCLEAR STRUCTURE deformed even-even rare earth nuclei; calculated moments of inertia, energies. Cranking model. Coriolis antipairing effect.]

• Received 2 July 1973

DOI:https://doi.org/10.1103/PhysRevC.9.1083