Coulomb excitation of $\chem{^{74}Ge}$ beam

Y. Toh; T. Czosnyka; M. Oshima; T. Hayakawa; H. Kusakari; M. Sugawara; Y. Hatsukawa; J. Katakura; N. Shinohara; M. Matsuda

doi:doi:10.1007/s100500070019

EPJ

Coulomb excitation of $\ensuremath{\mathsf{^{74}Ge}}$ beam

Y. Toh¹ - T. Czosnyka² - M. Oshima¹ - T. Hayakawa¹ - H. Kusakari³ - M. Sugawara⁴ - Y. Hatsukawa¹ - J. Katakura¹ - N. Shinohara¹ - M. Matsuda¹

¹ Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
² Heavy Ion Laboratory, Warsaw University, Warsaw PL-02097, Poland
³ Chiba University, Inage-ku, Chiba 263-8522, Japan
⁴ Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

Received: 31 August 2000 / Revised version: 4 November 2000
Communicated by D. Schwalm

Abstract
$\ensuremath{\mathsf{^{74}Ge}}$ beam was Coulomb-excited on a $\ensuremath{\mathsf{^{nat}Pb}}$ target. Ten E2 matrix elements including diagonal matrix elements for 5 low-lying states have been determined using the least-squares search code GOSIA. The expectation values of the rotational invariants $\langle Q^2$ $\rangle$ and $\langle$ cos3 $\delta$ $\rangle$ show the small and triaxial deformation of the two lowest members of the ground-state band , while the 0₂⁺ and 2₂⁺ states are found to be almost spherical.

PACS
25.70.De Coulomb excitation - 21.10.Ky Electromagnetic moments - 23.20.-g Electromagnetic transitions

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Coulomb excitation of beam

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Coulomb excitation of $\ensuremath{\mathsf{^{74}Ge}}$ beam