Indication of Negative Triaxial Deformation in the Very Neutron-Deficient Odd-A Re Isotopes

周小红; 许甫荣; 郑勇; 张玉虎

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Indication of Negative Triaxial Deformation in the Very Neutron-Deficient Odd-A Re Isotopes

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For the 9/2-[514] bands in light odd-A Re isotopes, the energy signature splitting and its relation with the signature dependence of M1 transition matrix elements are investigated in connection with the deviation of nuclear shape from axial symmetry. By comparing the energy signature splittings and relative magnetic transition rates between the experimental values and the theoretical calculations assuming axially symmetric shapes, it is found that discrepancies increase with the decreasing neutron number. These discrepancies strongly suggest an appreciable negative γ deformation for the very neutron-deficient odd-A Re isotopes.

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《中国物理快报：英文版》 |2003年第6期|825-828|共4页
作者
周小红; 许甫荣; 郑勇; 张玉虎;
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Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Department of Technical Physics and Key Laboratory of Ministry of Education, Peking University, Beijing 100871;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

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Indication of Negative Triaxial Deformation in the Very Neutron-Deficient Odd-A Re Isotopes

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