Measurement of <SUP>125</SUP>Ba High Spin States

SUN Xiang-Fu; YU Jian-Fang; GUO Ying-Xiang; LEI Xiang-Guo; LUO Yi-Xiao; WANG Ji-Cheng; XU Xiao-Ji; WEN Shu-Xian; WENG Pei-Kun; LI Sheng-Gang; YANG Chun-Xiang

Chinese Physics C> 1992, Vol. 16> Issue(1) : 62-67

Measurement of ¹²⁵Ba High Spin States

Institute of Modern Physics,Academia Sinica,Lanzhou 7300001 Institute of Atomic Energy,Beijing 102413

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Abstract：
The high spin states of ¹²⁵Ba populated via the ¹⁰⁹Ag(¹⁹F,3n) reaction are measured by using a BGO Compton suppressed HPGe detector array.The negative and positive parity bands built respectively on the h_11/2 and g_7/2 neutron hole states are extended to 35/2^－ and 23/2⁺.Backbending occurs in both signature branches of the negative band at the frequencies close to that of the ¹²⁴Ba yrast band.An onset of backbending in the positive band has been seen.

References

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Sun Xiangfu, et al., Phys. Rev., C28(1983), 1167.[2] K. Schiffer, et al., Z. Phys., A313(1983), 245.[3] K. Schiffer, et al., Z. Phys., A323 (1986), 487.[4] J. Gizon, et al Z. Phys., A285(1978), 259.[5] J. P, Martin, et al., Nucl, Phys., A489(1988),169[6] 郭应祥等，高能物理与核物理，14(1990),635,[7] A. C. Mueller, et al., Nucl.Phys., A403(1983), 234.[8] J. Gizon, et al Nucl. Phys., A277 (1977), 464.[9] J.Gizon, et al., Z. Phys., A281(1977),99.[10] R. Bengtseon and S. Frauendorf, Nucl. Phys., A327(1979), 139.[11] 孙相富等，近代物理所1990年年报.

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SUN Xiang-Fu, YU Jian-Fang, GUO Ying-Xiang, LEI Xiang-Guo, LUO Yi-Xiao, WANG Ji-Cheng, XU Xiao-Ji, WEN Shu-Xian, WENG Pei-Kun, LI Sheng-Gang and YANG Chun-Xiang. Measurement of ¹²⁵Ba High Spin States[J]. Chinese Physics C, 1992, 16(1): 62-67.

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Received: 1900-01-01
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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of ¹²⁵Ba High Spin States

Corresponding author: SUN Xiang-Fu,

Institute of Modern Physics,Academia Sinica,Lanzhou 7300001 Institute of Atomic Energy,Beijing 102413

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1992-01-05

Abstract: The high spin states of ¹²⁵Ba populated via the ¹⁰⁹Ag(¹⁹F,3n) reaction are measured by using a BGO Compton suppressed HPGe detector array.The negative and positive parity bands built respectively on the h_11/2 and g_7/2 neutron hole states are extended to 35/2^－ and 23/2⁺.Backbending occurs in both signature branches of the negative band at the frequencies close to that of the ¹²⁴Ba yrast band.An onset of backbending in the positive band has been seen.

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Measurement of ¹²⁵Ba High Spin States

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Measurement of 125Ba High Spin States

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Measurement of 125Ba High Spin States

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Measurement of ¹²⁵Ba High Spin States

Measurement of ¹²⁵Ba High Spin States