Collective states and shape competition in <sup>126</sup>Te

Liu-Chun He; Yun Zheng; Li-Hua Zhu; Hai-Liang Ma; Xiao-Guang Wu; Chuang-Ye He; Guang-Sheng Li; Lie-Lin Wang; Xin Hao; Ying Liu; Xue-Qin Li; Bo Pan; Zhong-Yu Li; Huai-Bo Ding

doi:10.1088/1674-1137/41/4/044003

Chinese Physics C> 2017, Vol. 41> Issue(4) : 044003 DOI: 10.1088/1674-1137/41/4/044003

Collective states and shape competition in ¹²⁶Te

Liu-Chun He ¹ ,
Yun Zheng ^2,, ,
Li-Hua Zhu ^1,3,, ,
Hai-Liang Ma ² ,
Xiao-Guang Wu ² ,
Chuang-Ye He ² ,
Guang-Sheng Li ² ,
Lie-Lin Wang ^2,4 ,
Xin Hao ^2,3 ,
Ying Liu ² ,
Xue-Qin Li ² ,
Bo Pan ² ,
Zhong-Yu Li ⁵ ,
Huai-Bo Ding ⁶

1.
School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
2.
China Institute of Atomic Energy, Beijing 102413, China
3.
School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
4.
Faculty of Science, Shenzhen University, Shenzhen 518060, China
5.
China Institute of Atomic Energy, Beijing 102413, China
6.
Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Mianyang 621010, China
7.
School of Physics, Peking University, Beijing 100871, China
8.
Department of Physics, Tsinghua University, Beijing 100084, China

Abstract
HTML
Reference
Related

PDF

Abstract：
High-spin states in ¹²⁶Te have been investigated by using in-beam γ ray spectroscopy with the ¹²⁴Sn(⁷Li, 1p4n)¹²⁶Te reaction at a beam energy of 48 MeV. The previously known level scheme has been enriched, and a new negative-parity sequence has been established. The yrast positive-parity band shows a shape change between triaxial shape and collective oblate shape as a function of spin. In particular, three competitive minima appear in the potential energy surface for the I^π=8⁺ states, with one aligned state at γ=-120° and two triaxial states at γ~30° and -45°, respectively. The signature splitting behavior of the negative-parity band is discussed. The shape change with increasing angular momentum and the signature splitting can be interpreted well in terms of the Cranked Nilsson-Strutinsky-Bogoliubov and Cranked Nilsson-Strutinsky model calculations.
- shape competition ,
- signature splitting ,
- collective states

References

[1]	Y. Liang, R. Ma, E. S. Paul et al, Phys. Rev. Lett., 64:29 (1990)
[2]	A. Granderath, P. Mantica, R. Bengtsson, et al, Nuclear Physics A, 597:427 (1996)
[3]	S. Nag, A. K. Singh, A. N. Wilson et al, Phys. Rev. C, 85:014310 (2012)
[4]	N. Xu, J.-Y. Zhang, Y. Liang, R. Ma et al, Phys. Rev. C, 42:1394 (1990)
[5]	Y. Liang, D. B. Fossan, J. R. Hughes et al, Phys. Rev. C, 45:1041 (1992)
[6]	K. Selvakumar, A. K. Singh, S. Das et al, Phys. Rev. C, 88:024313 (2013)
[7]	F. R. Xu, P. M. Walker, and R. Wyss, Phys. Rev. C, 59:731 (1999)
[8]	Y. S. Chen, S. Frauendorf, and G. A. Leander, Phys. Rev. C, 28:2437 (1983)
[9]	P. J. Nolan, R. Aryaeinejad, P. J. Bishop et al, Journal of Physics G:Nuclear Physics, 13:1555 (1987)
[10]	J. R. Vanhoy, J. A. Tanyi, K. A. Crandell et al, Phys. Rev. C, 69:064323 (2004)
[11]	T. von Egidy, C. Doll, J. Jolie et al, Nuclear Physics A, 714:355 (2003)
[12]	J. Ott, C. Doll, T. von Egidy et al, Nuclear Physics A, 625:598 (1997)
[13]	A. Kerek, Nuclear Physics A, 176:466 (1971)
[14]	C. Zhang, P. Bhattacharyya, P. Daly et al, Nuclear Physics A, 628:386 (1998)
[15]	A. Astier, M.-G. Porquet, T. Venkova et al, The European Physical Journal A, 50:2 (2014)
[16]	D. Radford, Nuclear Instruments and Methods in Physics Research Section A:Accelerators, Spectrometers, Detectors and Associated Equipment, 361:297 (1995)
[17]	P. H. Regan, C. W. Beausang, N. V. Zamfir et al, Phys. Rev. Lett., 90:152502 (2003)
[18]	A. Afanasjev, D. Fossan, G. Lane and I. Ragnarsson, Physics Reports, 322:1 (1999)
[19]	B. G. Carlsson and I. Ragnarsson, Phys. Rev. C, 74:011302 (2006)
[20]	V. Strutinsky, Nuclear Physics A, 95:420 (1967)
[21]	B. G. Carlsson, I. Ragnarsson, R. Bengtsson et al, Phys. Rev. C, 78:034316 (2008)
[22]	H.-L. Ma, B. G. Carlsson, I. Ragnarsson and H. Ryde, Phys. Rev. C, 90:014316 (2014)
[23]	J.-Y. Zhang, N. Xu, D. B. Fossan et al, Phys. Rev. C, 39:714 (1989)
[24]	G. Andersson, S. Larsson, G. Leander et al, Nuclear Physics A, 268:205 (1976)
[25]	V. Strutinsky, Nuclear Physics A, 122:1 (1968)
[26]	K. Pomorski and J. Dudek, Phys. Rev. C, 67:044316 (2003)
[27]	B. G. Carlsson and I. Ragnarsson, Phys. Rev. C, 74:044310 (2006)
[28]	N. Fotiades, J. A. Cizewski, R. Krcken et al, Phys. Rev. C, 89:017303 (2014)

[1]	CHEN Guo-Ying , HUO Wen-Sheng , ZHAO Qiang . Identifying the structure of near-threshold states from the line shape. Chinese Physics C, 2015, 39(9): 093101. doi: 10.1088/1674-1137/39/9/093101
[2]	HENG Zong-Qiang , SHU Liang-Ping , MENG Ying , HU Ji-Gang , QIAN Jian-Fa . Competition between α-decay and β-decay for heavy andsuperheavy nuclei. Chinese Physics C, 2014, 38(12): 124101. doi: 10.1088/1674-1137/38/12/124101
[3]	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
[4]	LI Tao , CHEN Bao-Ren , LIU Shu-Xin . Signature splitting of the πh_11/2 band and high-spin structures in ¹⁵⁵Tb. Chinese Physics C, 2010, 34(7): 958-963. doi: 10.1088/1674-1137/34/7/006
[5]	DING Huai-Bo , ZHU Sheng-Jiang , WANG Jian-Guo , CHE Xing-Lai , GU Long . Extended collective bands in neutron-rich ¹⁰⁹Ru. Chinese Physics C, 2009, 33(S1): 154-157. doi: 10.1088/1674-1137/33/S1/049
[6]	PING Rong-Gang . On η_c line shape in charmonium transitions. Chinese Physics C, 2009, 33(8): 617-621. doi: 10.1088/1674-1137/33/8/003
[7]	ZOU Jia-Heng , LI Hai-Bo , ZHANG Xue-Yao . A possible signature of new physics at BES-Ⅲ. Chinese Physics C, 2009, 33(1): 1-5. doi: 10.1088/1674-1137/33/1/001
[8]	LIU Ying , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HE Chuang-Ye , LI Xue-Qin , PAN Bo , HAO Xin , LI Li-Hua , WANG Zhi-Min , LI Zhong-Yu , XU Qiang . Signature splitting in ¹²⁹Ce. Chinese Physics C, 2009, 33(S1): 212-214. doi: 10.1088/1674-1137/33/S1/068
[9]	LIU Ying , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HE Chuang-Ye , LI Xue-Qin , PAN Bo , HAO Xin , LI Li-Hua , WANG Zhi-Min , LI Zhong-Yu , XU Qiang , WANG Jian-Guo , DING Huai-Bo , ZHAI Jian . Triaxial shape in ¹²⁹Ce. Chinese Physics C, 2008, 32(S2): 141-142.
[10]	GAO Dao-Neng , YAN Mu-Lin . A note on the mass splitting of K^*(892). Chinese Physics C, 2008, 32(11): 862-864. doi: 10.1088/1674-1137/32/11/002
[11]	ZHENG Shi-Jie , XU Fu-Rong . Shape coexistence of superheavy nuclei. Chinese Physics C, 2008, 32(S2): 152-154.
[12]	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.
[13]	HAO Xin , ZHU Li-Hua , WU Xiao-Guang , HE Chuang-Ye , LI Guang-Sheng , LI Xue-Qin , LIU Ying , LI Li-Hua , PAN Bo . High-spin states and signature inversion studies in ¹¹⁰Ag. Chinese Physics C, 2008, 32(S2): 143-145.
[14]	Zhang Yuhu , Zhao Qingzhong , Zhou Xiaohong , Sun Xiangfu , Lei Xiangguo , Guo Yingxiang , Liu Zhong , Chen Xinfeng , Zhu Yongtai , Wen Shuxian , Yuan Guanjun , Liu Xiangan . High-Spin States in ¹⁶²Lu and Signature Inversion of Yrast Bands in Doubly Odd Nuclei Around the A=160 Mass Region. Chinese Physics C, 1997, 21(S2): 15-24.
[15]	Zhang Yuhu , Zhao Qingzhong , Zhou Xiaohong , Xu Hushan , Guo Yingxiang , Lei Xiangguo , Lu Jun , Zhu Shaofei , Gou Quanbu , Jin Hanjuan , Liu Zhong , Luo Yixiao , Sun Xiangfa , Zhu Yongtai . Rotational Band Structure in Doubly Odd ¹⁷⁰Ta. Chinese Physics C, 1997, 21(S1): 433-436.
[16]	Liu Guanhua , Zhan Wenlong , Zhu Yongtai , Guo Zhongyan , Hu Xiaoqing , Xi Hongfei , Zhou Jianqun , Yin Shuzhi , Feng Enpu , Zhao Youxiong , Wei Zhiyong , Fan Enjie . Competition Between Fragmentation and Transfer in 46.7 MeV/u ¹²C Induced Reactions. Chinese Physics C, 1993, 17(S1): 73-80.
[17]	Jin Bingnian , Xu Yadi . Z⁰ Line Shape Fit. Chinese Physics C, 1992, 16(S1): 11-16.
[18]	Luo Zhenfei , Qiu Xijun . Mass Splitting of L=1 States of Quarkonium and Lorentz Structure of Long-range Confinement Potential. Chinese Physics C, 1992, 16(S3): 313-320.
[19]	Ding Yibing , Qin Danhua , Chao Kuangta . Two-Higgs-Doublet Model and the Splitting of tt p-States. Chinese Physics C, 1990, 14(S1): 53-57.
[20]	Dai Guangxi , Li Weisheng . Exploration of Optimum Shape in Symmetric Fission. Chinese Physics C, 1988, 12(S4): 399-404.

Access

Get Citation

Liu-Chun He, Yun Zheng, Li-Hua Zhu, Hai-Liang Ma, Xiao-Guang Wu, Chuang-Ye He, Guang-Sheng Li, Lie-Lin Wang, Xin Hao, Ying Liu, Xue-Qin Li, Bo Pan, Zhong-Yu Li and Huai-Bo Ding. Collective states and shape competition in ¹²⁶Te[J]. Chinese Physics C, 2017, 41(4): 044003. doi: 10.1088/1674-1137/41/4/044003

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2016-10-17
Revised: 2016-12-07

Fund

Supported by National Natural Science Foundation of China (11575018, 11375023, 11305269, 11375267, 11405274, 11205245, 10927507, 10975191, 11075214, 11175259, 11205068)

Article Metric

Article Views(1567)
PDF Downloads(46)
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

Collective states and shape competition in ¹²⁶Te

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Collective states and shape competition in ¹²⁶Te

Corresponding author: Yun Zheng,

Corresponding author: Li-Hua Zhu,

HTML

目录

Collective states and shape competition in 126Te

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Collective states and shape competition in 126Te

Corresponding author: Yun Zheng,

Corresponding author: Li-Hua Zhu,

HTML

目录

Collective states and shape competition in ¹²⁶Te

Collective states and shape competition in ¹²⁶Te