Abstract

Differential cross sections have been measured for the elastic and inelastic scattering of 104 MeV α-particles from 46, 48, 49Ti. The experimental results are analyzed in terms of coupled channels on the basis of various limiting models of the collective behavior of these nuclei: symmetric rotator ( 46Ti), asymmetric rotator ( 48Ti) and anharmonic vibrator ( 50Ti). The analysis uses both the usual extended optical model and a semimicroscopic folding model. Prolate-oblate and γ-asymmetry effects are studied and confirm prolate deformation of 46Ti and 48Ti. Hexadecapole transitions (0 + → 4 1 +) are found.

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