Doublet bands in <SUP>128</SUP>La and systematic features of energy separationof doublet bands observed in the <I>A</I>～130 mass region

MA Ke-Yan; LU Jing-Bin; YANG Dong; WANG Hui-Dong; LIU Yun-Zuo; LI Jian; LIU Gong-Ye; LI Li; MA Ying-Jun; WU Xiao-Guang; LI Guang-Sheng; ZHENG Yun; HE Chuang-Ye

doi:10.1088/1674-1137/37/4/044001

Chinese Physics C> 2013, Vol. 37> Issue(4) : 044001 DOI: 10.1088/1674-1137/37/4/044001

Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region

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High spin states of ¹²⁸La have been studied through the fusion-evaporation reaction ¹¹⁸Sn(¹⁴N, 4n)¹²⁸La at a beam energy of 69 MeV. A positive-parity side band with the same configuration as that of the yrast band has been identified. Moreover, it is noted that the energy separation ΔE(I)=E(I)_side-E(I)_yrast of all doublet bands reported in odd-odd nuclei in the A～130 mass region exhibit a staggering pattern systematically, and they stagger up at even-spin and stagger down at odd-spin.

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MA Ke-Yan, LU Jing-Bin, YANG Dong, WANG Hui-Dong, LIU Yun-Zuo, LI Jian, LIU Gong-Ye, LI Li, MA Ying-Jun, WU Xiao-Guang, LI Guang-Sheng, ZHENG Yun and HE Chuang-Ye. Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region[J]. Chinese Physics C, 2013, 37(4): 044001. doi: 10.1088/1674-1137/37/4/044001

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Received: 2012-05-21
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region

Corresponding author: LU Jing-Bin,

Received Date: 2012-05-21

Accepted Date: 1900-01-01

Available Online: 2013-04-05

Abstract: High spin states of ¹²⁸La have been studied through the fusion-evaporation reaction ¹¹⁸Sn(¹⁴N, 4n)¹²⁸La at a beam energy of 69 MeV. A positive-parity side band with the same configuration as that of the yrast band has been identified. Moreover, it is noted that the energy separation ΔE(I)=E(I)_side-E(I)_yrast of all doublet bands reported in odd-odd nuclei in the A～130 mass region exhibit a staggering pattern systematically, and they stagger up at even-spin and stagger down at odd-spin.

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Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region

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Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region

Corresponding author: LU Jing-Bin,

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Doublet bands in 128La and systematic features of energy separationof doublet bands observed in the A～130 mass region

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通讯作者: 陈斌, bchen63@163.com

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Doublet bands in 128La and systematic features of energy separationof doublet bands observed in the A～130 mass region

Corresponding author: LU Jing-Bin,

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Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region

Doublet bands in ¹²⁸La and systematic features of energy separationof doublet bands observed in the A～130 mass region