Properties of the πh9/2 otimes νi13/2 Oblate Band in 188Tl

Chin. Phys. Lett.

2006, Vol. 23

Issue (7): 1727-1730 DOI:

Original Articles

Properties of the πh_9/2 otimes νi_13/2 Oblate Band in ¹⁸⁸Tl

MA Long¹;ZHOU Xiao-Hong¹;XING Ye-Bing¹;ZHANG Yu-Hu¹;GUO Ying-Xing¹;LEI Xiang-Guo¹;XIE Chen-Ying¹;Oshima M.²;Toh Y.²;Koizumi M.²;Osa A.²;Hatsukawa Y.²;Sugawara M.³

¹Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 ²Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan ³Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

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MA Long, ZHOU Xiao-Hong, XING Ye-Bing et al 2006 Chin. Phys. Lett. 23 1727-1730

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Abstract High spin states in ¹⁸⁸Tl have been investigated via the ¹⁵⁷Gd(³⁵Cl,4n) reaction at beam energy of 170MeV. A rotational band built on the πh_9/2 otimes νi_13/2 configuration with oblate deformation has been established. Considering the similarity between the band structure observed in odd--odd Tl nuclei, spin values have been tentatively proposed for the new band in ¹⁸⁸Tl. The πh_9/2 otimes νi_13/2 oblate band in ¹⁸⁸Tl shows low-spin signature inversion, and it can be interpreted qualitatively by the two quasiparticle plus rotor model including a J-dependent p--n residual interaction.

Keywords: 21.10.Re 23.20.Lv 27.80.+q

Published: 01 July 2006

PACS:	21.10.Re	(Collective levels)
	23.20.Lv	(γ-transitions and level energies)
	27.80.+q

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I7/01727

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	MA Long
	ZHOU Xiao-Hong
	XING Ye-Bing
	ZHANG Yu-Hu
	GUO Ying-Xing
	LEI Xiang-Guo
	XIE Chen-Ying
	Oshima M.
	Toh Y.
	Koizumi M.
	Osa A.
	Hatsukawa Y.
	Sugawara M.

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