Shape coexistence and evolution in neutron-deficient krypton isotopes

BAI Zhi-Jun; FU Xi-Ming; JIAO Chang-Feng; XU Fu-Rong

doi:10.1088/1674-1137/39/9/094101

Chinese Physics C> 2015, Vol. 39> Issue(9) : 094101 DOI: 10.1088/1674-1137/39/9/094101

Shape coexistence and evolution in neutron-deficient krypton isotopes

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Abstract：
Total Routhian Surface (TRS) calculations have been performed to investigate shape coexistence and evolution in neutron-deficient krypton isotopes ^72,74,76Kr. The ground-state shape is found to change from oblate in ⁷²Kr to prolate in ^74,76Kr, in agreement with experimental data. Quadrupole deformations of the ground states and coexisting 0₂⁺ states as well as excitation energies of the latter are also well reproduced. While the general agreement between calculated moments of inertia and those deduced from observed spectra confirms the prolate nature of the low-lying yrast states of all three isotopes (except the ground state of ⁷²Kr), the deviation at low spins suggests significant shape mixing. The role of triaxiality in describing shape coexistence and evolution in these nuclei is finally discussed.

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[5]	Da-Li Zhang , Cheng-Fu Mu . Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2. Chinese Physics C, 2018, 42(3): 034101. doi: 10.1088/1674-1137/42/3/034101
[6]	Cui Zhu , Xia Zhou , Na Wang . Rotational energy conversion and thermal evolution of neutron stars. Chinese Physics C, 2017, 41(12): 125104. doi: 10.1088/1674-1137/41/12/125104
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[9]	Ming-Zhe Liu , Bing-Qi Liu , Zhuo Zuo , Lei Wang , Gui-Bin Zan , Xian-Guo Tuo . Toward a fractal spectrum approach for neutron and gamma pulse shape discrimination. Chinese Physics C, 2016, 40(6): 066201. doi: 10.1088/1674-1137/40/6/066201
[10]	HE Chuang-Ye , WU Xiao-Guang , ZHENG Yun , LI Cong-Bo , FANG Xin . Description of the shape evolution in the yrast states of ¹⁸⁶Pt. Chinese Physics C, 2014, 38(2): 024101. doi: 10.1088/1674-1137/38/2/024101
[11]	HAO Xin , ZHU Li-Hua , WU Xiao-Guang , LI Guang-Sheng , PAN Bo , WANG Lie-Lin , ZHENG Yun , WANG Lei , LI Xue-Qin , LIU Ying , DING Huai-Bo , LI Zhong-Yu . Shape evolution and test of the critical-point symmetry X(5) in ¹⁷⁶Os. Chinese Physics C, 2009, 33(S1): 151-153. doi: 10.1088/1674-1137/33/S1/048
[12]	ZHU Jian-Yu , QI Chong , LIU Meng-Xi , CUI Xiao , XU Fu-Rong . Shape transitions in proton-rich Ho and Tm isotopes. Chinese Physics C, 2009, 33(S1): 9-11. doi: 10.1088/1674-1137/33/S1/003
[13]	LIU Hong-Liang , XU Fu-Rong . Shape coexistence of high-spin isomeric states in proton-rich A~190 nuclei. Chinese Physics C, 2008, 32(S2): 131-133.
[14]	ZHENG Shi-Jie , XU Fu-Rong . Shape coexistence of superheavy nuclei. Chinese Physics C, 2008, 32(S2): 152-154.
[15]	ZHENG Shi-Jie , XU Fu-Rong . Shape Coexistence in Light Krypton Isotopes. Chinese Physics C, 2006, 30(S2): 121-123.
[16]	Guo Junsheng , Gan Zaiguo , Liu Hongye , Shi Lijun , Yang Wefan , Mou Wantong , Guo Tianrui , Fang Kerning , Shen Shuifa , Yuan Shuanggui , Zhong Jiquan , Zhang Xueqian , Qin Zhi , Ma Ruichang , Wang Shuhong , Kong Dengming , Qiao Jimin . Synthesis and Identification of the New Neutron-Deficient Isotope ²³⁵Am in the Transuranium Region. Chinese Physics C, 1996, 20(S1): 31-32.
[17]	Xu Shuwei , Xie Yuanxiang , Pan Qiangyan , Zhang Juping , Zhang Xueqian , Wang Yihao , Ge Yuanxiu , Yin Xijin , Wang Chunfang , Zhang Tianmei , Liu Zhong , Guo Bing , Luo Yixiao , Xing Zheng , Chen Xingqu . First Study of EC/β⁺ Decay Schemes for Neutron-Deficient Isotopes ¹⁵³Er and ¹⁵⁷Yb. Chinese Physics C, 1995, 19(3): 193-202.
[18]	Zhou Xiaohong , Sun Xiangfu , Guo Yinxiang , Lei Xiangguo , Liu Zhong , Chen Xinfeng , Zhang Yuhu , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang . Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi. Chinese Physics C, 1995, 19(S4): 341-347.
[19]	Zhu Shengjiang , Ma Wenchao , Ahmad , B. Dichter , H. Emling , R. Holzman , R. V. F. Janssens , T. L. Khoo , M. Quader , P. J. Daly , Z. Grabowski , M. Piiparinen , W. Trzaska , M. W. Drigert , U. Garg . High Spin Level Structure in ¹⁵³Dy and Shape Changes in Neutron-Deficient Dy Nuclei. Chinese Physics C, 1991, 15(S2): 165-171.
[20]	ZHANG Jing-Ye , LI Bao-An . ON THE SHAPE COEXISTENCE REGION IN KRYPTON ISOTOPES. Chinese Physics C, 1984, 8(5): 633-636.

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BAI Zhi-Jun, FU Xi-Ming, JIAO Chang-Feng and XU Fu-Rong. Shape coexistence and evolution in neutron-deficient krypton isotopes[J]. Chinese Physics C, 2015, 39(9): 094101. doi: 10.1088/1674-1137/39/9/094101

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Received: 2015-03-25
Revised: 1900-01-01

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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

Shape coexistence and evolution in neutron-deficient krypton isotopes

Corresponding author: XU Fu-Rong,

Received Date: 2015-03-25

Accepted Date: 1900-01-01

Available Online: 2015-09-05

Abstract: Total Routhian Surface (TRS) calculations have been performed to investigate shape coexistence and evolution in neutron-deficient krypton isotopes ^72,74,76Kr. The ground-state shape is found to change from oblate in ⁷²Kr to prolate in ^74,76Kr, in agreement with experimental data. Quadrupole deformations of the ground states and coexisting 0₂⁺ states as well as excitation energies of the latter are also well reproduced. While the general agreement between calculated moments of inertia and those deduced from observed spectra confirms the prolate nature of the low-lying yrast states of all three isotopes (except the ground state of ⁷²Kr), the deviation at low spins suggests significant shape mixing. The role of triaxiality in describing shape coexistence and evolution in these nuclei is finally discussed.

Shape coexistence and evolution in neutron-deficient krypton isotopes

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通讯作者: 陈斌, bchen63@163.com

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Shape coexistence and evolution in neutron-deficient krypton isotopes

Corresponding author: XU Fu-Rong,

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