High-Spin States of the Neutron-Rich Nucleus <SUP>125</SUP>Sb

LIU Zhong; ZHANG Yu-Hu; MA Ying-Jun

Chinese Physics C> 2002, Vol. 26> Issue(12) : 1195-1200

High-Spin States of the Neutron-Rich Nucleus ¹²⁵Sb

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China2 Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan

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Abstract：
High spin states of ¹²⁵Sb have been investigated for the first time by means of in-beam γ-ray spectroscopy techniques via the ¹²⁴Sn(⁷Li, α2n) reaction at 32 MeV beam energy. Based on the measurements of γ-γ coincidence and γ-ray anisotropies, a level scheme including 21 new γ-transitions and 14 new excited levels was established up to 23/2+. Three isomers at 1970, 2110 and 2471 keV levels have been identified and proposed as three-quasiparticle πg_7/2ν(h_11/2s_1/2), πg_7/2ν(h_11/2d_3/2) and πg_7/2ν(h²_11/2) configurations, respectively. The level structure of ¹²⁵Sb is ?discussed in terms of particle-core coupling

References

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LIU Zhong, ZHANG Yu-Hu and MA Ying-Jun. High-Spin States of the Neutron-Rich Nucleus ¹²⁵Sb[J]. Chinese Physics C, 2002, 26(12): 1195-1200.

LIU Zhong, ZHANG Yu-Hu and MA Ying-Jun. High-Spin States of the Neutron-Rich Nucleus ¹²⁵Sb[J]. Chinese Physics C, 2002, 26(12): 1195-1200. shu

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Received: 2002-06-17
Revised: 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

High-Spin States of the Neutron-Rich Nucleus ¹²⁵Sb

Corresponding author: LIU Zhong,

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China2 Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan

Received Date: 2002-06-17
Accepted Date: 1900-01-01
Available Online: 2002-12-05

Abstract: High spin states of ¹²⁵Sb have been investigated for the first time by means of in-beam γ-ray spectroscopy techniques via the ¹²⁴Sn(⁷Li, α2n) reaction at 32 MeV beam energy. Based on the measurements of γ-γ coincidence and γ-ray anisotropies, a level scheme including 21 new γ-transitions and 14 new excited levels was established up to 23/2+. Three isomers at 1970, 2110 and 2471 keV levels have been identified and proposed as three-quasiparticle πg_7/2ν(h_11/2s_1/2), πg_7/2ν(h_11/2d_3/2) and πg_7/2ν(h²_11/2) configurations, respectively. The level structure of ¹²⁵Sb is ?discussed in terms of particle-core coupling