Elastic scattering of 65 MeV polarized protons from Sm isotopes, Dy164, and Yb172 has been measured. The volume integrals of the real central part and the spin-orbit part of the optical potential show anomalously low values for deformed nuclei. The origins of these anomalies are discussed. NUCLEAR REACTIONS Sm144, Sm148, Sm150, Sm152, Sm154, Dy164, Yb172(p,p), Dy164(p,p), E=65 MeV; measured (), A(); deduced optical-model parameters, coupled channel parameters, volume integrals for the real central potential, volume integrals for the real spin-orbit potential.
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