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Journal Articles

Band properties of the transitional nucleus $$^{187}$$Pt

Zhou, X. H.*; Xing, Y. B.*; Liu, M. L.*; Zhang, Y. H.*; Guo, Y. X.*; Ma, L.*; Lei, X. G.*; Guo, W. T.*; Oshima, Masumi; Toh, Yosuke; et al.

Physical Review C, 75(3), p.034314_1 - 034314_17, 2007/03

 Times Cited Count:18 Percentile:75.6(Physics, Nuclear)

High-spin states in $$^{187}$$Pt has been studied experimentally by in-beam $$gamma$$-ray spectroscopy. The previously known bands based on the $$nu i_{13/2}, nu 7/2^{-}[503] $$ and $$nu i^{2}_{13/2} nu j$$ configurations have been extended to high-spin states, and new rotational bands associated with the $$nu 3/2^{-}[512]$$ and $$nu 1/2^{-}[521]$$ Nilsson orbits have been identified. The total Routhian surface calculations indicate that the transitional nucleus $$^{187}$$Pt is very soft with respect to $$beta$$ and $$gamma$$ deformations. The band properties have been compared with the systematics observed in neiboring nuclei and have been interpreted within the framework of the cranked shell model.

Journal Articles

Observation of a $$pi rm h_{9/2} bigotimes nu rm i_{13/2}$$ oblate band in $$^{188}$$Tl

Zhou, X. H.*; Ma, L.*; Xing, Y. B.*; Zhang, Y. H.*; Guo, Y. X.*; Lei, X. G.*; Xie, C. Y.*; Oshima, Masumi; Toh, Yosuke; Koizumi, Mitsuo; et al.

European Physical Journal A, 28(3), p.271 - 275, 2006/06

 Times Cited Count:2 Percentile:22.05(Physics, Nuclear)

Excited states in $$^{188}$$Tl have been studied experimentally by in-beam $$gamma$$-ray spectroscopy. A rotational band built on the $$pi rm h_{9/2} bigotimes nu rm i_{13/2}$$ configuration with oblate deformation has been established for $$^{188}$$Tl. Based on the structure systematics of the oblate $$pi rm h_{9/2} bigotimes nu rm i_{13/2}$$ bands in heavier odd-odd Tl nuclei, we have tentatively proposed spin values for the new band in $$^{188}$$Tl. The new oblate band 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.

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