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

Abstract
HTML
Reference
Related

PDF

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.

[1]	Xiao-Jun Bao . Possibilities for synthesis of new neutron-deficient isotopes of superheavy nuclei. Chinese Physics C, 2019, 43(5): 054105. doi: 10.1088/1674-1137/43/5/054105
[2]	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.
[3]	Xin-Xin Xu , Gen Zhang , Jing-Jing Li , Bing Li , Cheikh A. T. Sokhna , Xin-Rui Zhang , Xiu-Xiu Yang , Shi-Hui Cheng , Yu-Hai Zhang , Zhi-Shuai Ge , Cheng Li , Zhong Liu , Feng-Shou Zhang . Production of exotic neutron-deficient isotopes near N, Z = 50 in multinucleon transfer reactions. Chinese Physics C, 2019, 43(6): 064105. doi: 10.1088/1674-1137/43/6/064105
[4]	Wenjin Tan , Dongdong Ni , Zhongzhou Ren . Calculations of the β-decay half-lives of neutron-deficient nuclei. Chinese Physics C, 2017, 41(5): 054103. doi: 10.1088/1674-1137/41/5/054103
[5]	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.
[6]	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.
[7]	ZHENG Shi-Jie , XU Fu-Rong . Shape coexistence of superheavy nuclei. Chinese Physics C, 2008, 32(S2): 152-154.
[8]	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
[9]	J.E. García-Ramos , J.M. Arias , A. Vitturi . Two-neutron transfer reactions as a tool to study the interplay between shape coexistence and quantum phase transitions. Chinese Physics C, 2020, 44(12): 124101. doi: 10.1088/1674-1137/abb4ca
[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]	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.
[12]	Xiang-Ru Yu , Jing Hu , Xiao-Xue Li , Si-Yu An , Yu Zhang . Effects of single particle on shape phase transitions and phase coexistence in odd-even nuclei. Chinese Physics C, 2018, 42(3): 034103. doi: 10.1088/1674-1137/42/3/034103
[13]	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
[14]	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
[15]	Wei Zhang , Yi-Fei Niu . Shape evolution of ^{72, 74}Kr with temperature in covariant density functional theory. Chinese Physics C, 2017, 41(9): 094102. doi: 10.1088/1674-1137/41/9/094102
[16]	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
[17]	Hui Jiang , Xin-Lin Tang , Jia-Jie Shen , Yang Lei . Electromagnetic properties of neutron-rich Ge isotopes. Chinese Physics C, 2019, 43(12): 124110. doi: 10.1088/1674-1137/43/12/124110
[18]	Surbhi Gupta , Ridham Bakshi , Suram Singh , Arun Bharti , G. H. Bhat , J. A. Sheikh . Evolution of intrinsic nuclear structure in medium mass even-even Xenon isotopes from a microscopic perspective. Chinese Physics C, 2020, 44(7): 074108. doi: 10.1088/1674-1137/44/7/074108
[19]	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
[20]	Rakesh K. Pandit , R.K. Bhat , Rani Devi , S.K. Khosa , G.H. Bhat , J.A. Sheikh . Microscopic study of electromagnetic properties and band spectra of neutron deficient ^133,135,137Sm. Chinese Physics C, 2019, 43(12): 124108. doi: 10.1088/1674-1137/43/12/124108

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(1055)
PDF Downloads(130)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
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

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Shape coexistence and evolution in neutron-deficient krypton isotopes

Corresponding author: XU Fu-Rong,

HTML

目录