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

Chin. Phys. Lett.

2003, Vol. 20

Issue (6): 825-828 DOI:

Original Articles

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

ZHOU Xiao-Hong¹;XU Fu-Rong²;ZHENG Yong¹;ZHANG Yu-Hu¹

¹Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 ²Department of Technical Physics and Key Laboratory of Ministry of Education, Peking University, Beijing 100871

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ZHOU Xiao-Hong, XU Fu-Rong, ZHENG Yong et al 2003 Chin. Phys. Lett. 20 825-828

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Abstract 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.

Keywords: 21.10.Re 23.20.-g 27.70.+q

Published: 01 June 2003

PACS:	21.10.Re	(Collective levels)
	23.20.-g	(Electromagnetic transitions)
	27.70.+q	(150 ≤ A ≤ 189)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I6/0825

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