Structure of low-lying states by (α,α′) inelastic scattering at 25 MeV (I). 70,72,74,76Ge isotopes

doi:10.1016/0375-9474(88)90503-9

Nuclear Physics A

Volume 490, Issue 2, 19 December 1988, Pages 227-244

https://doi.org/10.1016/0375-9474(88)90503-9 Get rights and content

Abstract

Differential cross sections were measured for elastic and inelastic scattering of 25 MeV α-particles from ^70,72,74,76Ge. Coupled-channels calculations based on the asymmetric rotor model and the vibrational model were performed for the 0₁⁺-2₁⁺-2₂⁺-4₁⁺ and 0₁⁺-2₁⁺-0₂⁺-2₁⁺-4₁⁺-3⁻ states, respectively. The asymmetric rotor model describes better than the vibrational model the even-parity excited states. A change in the nuclear structure between ^70,72Ge and ^74,76Ge is indicated by our data when comparing the angular distributions of the 0₁⁺, 2₁⁺ and 3⁻ states. An oblate to prolate shape deformation between ⁷⁰Ge and ^72,74,76Ge is consistent with our results, as deduced from the study of the 2₂⁺ angular distributions in the context of the asymmetric rotor model.

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^☆: This work has been partially supported by CAICYT under project PR84-0208.

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Structure of low-lying states by (α,α′) inelastic scattering at 25 MeV (I). 70,72,74,76Ge isotopes☆

Abstract

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Nucl. Phys.

Nucl. Phys.

Phys. Lett.

Phys. Rev.

Phys. Rev.

Nucl. Phys.

Nucl. Phys.

J. of Phys.

J. of Phys.

Nuovo Cim.

Nucl. Phys.

Nucl. Data Sheets

Structure of low-lying states by (α,α′) inelastic scattering at 25 MeV (I). ^70,72,74,76Ge isotopes☆