Chinese Physics C > 2007, Vol. 31 > Issue(4): 357-360

Study of Multi-Quasiparticle Excited States in¹³⁹Ce

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Abstract
HTML
Reference
Related

PDF

Abstract：
High-spin states in ¹³⁹Ce have been populated using the ¹³⁰Te( ¹²C,3n) reaction at beam energy of 50MeV. The level scheme of ¹³⁹Ce has been revised and extended greatly up to E=5765.0keV. The level structure of ¹³⁹Ce shows typical characteristics of spherical nucleus, and the high-spin states were formed by the excitations of valence nucleons. Energies of the yrast and near yrast high-spin states in ¹³⁹Ce have been calculated by the empirical shell model, and the multi-quasiparticle nature of high-spin excited states has been discussed.

References

[1]

. Ludziejewski J, Arnold H. Z. Phys., 1977, A281: 2872. Chaumeaux A, Bruge G, Faraggi H. Nucl. Phys., 1971,A164: 1763. LIU M L, ZHANG Y H, ZHOU X H et al. Science in China,2003, G46: 3304. ZHENG Y, ZHOU X H, ZHANG Y H et al. Science inChina, 2004, G47: 5615. Kownacki J, Ludziejewski J, Sujkowski Z et al. Nucl. Phys.,1974, A236: 1256. Enghardt W, Kaubler L, Prade H et al. Nucl. Phys., 1986,A449: 4177. Baer H W, Reidy J J, Wiedenbeck M L. Nucl. Phys., 1966,86: 3328. China Institute of Atomic Energy. Clebsch-Gordan ecienttable. Beijing: Science Press, 1964. 3-64(in Chinese)(中国科学院原r能研究所.克累布施一郭尔丹系数表.北京:科学出版社,1964. 3-64)

[1]	ZHANG Ning-Tao,ZHANG Yu-Hu,ZHOU Xiao-Hong,LIU Min-Liang,ZHENG Yong,GUO Ying-Xiang,CHEN Liang,WANG Shi-Tao,ZHANG Xin,ZHU Li-Hua,WU Xiao-Guang. Dipole bands in nucleus¹³⁹Pm. Chinese Physics C, 2010, 34(4): 456-459.doi:10.1088/1674-1137/34/4/007
[2]	XU Qiang,ZHU Sheng-Jiang,CHE Xing-Lai,DING Huai-Bo,GU Long,ZHU Li-Hua,WU Xiao-Guang,LIU Ying,HE Chuang-Ye,LI Li-Hua,PAN Bo,HAO Xin,LI Guang-Sheng. High spin band structure in¹³⁹Nd. Chinese Physics C, 2009, 33(S1): 185-187.doi:10.1088/1674-1137/33/S1/059
[3]	Shi Yu,MA Yu-Gang,CHEN Jin-Geng,FANG De-Qing,WANG Kun,YAN Ting-Zhi,MA Chun-Wang,LIU Gui-Hua,TIAN Wen-Dong,WANG Hong-Wei,GUO Wei,MA Er-Jun,SU Qian-,. Exotic Structure of the Single Nucleon Excited States in the Medium Nuclei near the Stability Line. Chinese Physics C, 2006, 30(S2): 180-182.
[4]	CHEN Yong-Jing,ZHU Sheng-Jiang,CHE Xin-Lai,DING Huai-Bo,LI Ming-Liang. Octupole Deformed Band and Quasi-γ Band in¹⁴⁶Ce Nucleus. Chinese Physics C, 2006, 30(8): 740-744.
[5]	LIU Hong-Liang,XU Fu-Rong. Shape of the K^π=7^－Isomer in¹³⁰Ce. Chinese Physics C, 2006, 30(S2): 100-102.
[6]	ZHU Sheng-Jiang,GAN Cui-Yun,ZHU Ling-Yan,YANG Li-Ming,LONG Gui-Lu,WUN Shu-Xian,WU Xiao-Guang,LI Guang-Sheng,ZHU Li-Hua,. High Spin States and Shape Coexistence in¹³⁴Ce. Chinese Physics C, 2005, 29(2): 130-138.
[7]	LIU Zu-Hua. Neutron Halo of the Excited States in¹⁴C. Chinese Physics C, 2003, 27(2): 135-137.
[8]	LIU Zu-Hua,LIN Cheng-Jian,ZHANG Huan-Qiao,LI Zhi-Chang,ZHANG Jing-Shang,WU Yue-Wei,YANG Feng,RUAN Ming,LIU Jian-Cheng,LI Shu-Yuan,PENG Shao-Hua. Nuclear Asymptotic Normalization Coefficientsand Neutron Halo of the Excited States. Chinese Physics C, 2002, 26(7): 696-702.
[9]	LIU Zhong,ZHANG Yu-Hu,GUO Ying-Xiang,ZHOU Xiao-Hong,LEI Xiang-Guo,LIU Min-Liang,LUO Wan-Ju,HE Jian-Jun,ZHENG Yong,PAN Qiang-Yan,GAN Zai-Guo,LUO Yi-Xiao. Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus¹⁴²Ce. Chinese Physics C, 2002, 26(10): 1015-1020.
[10]	LI Guang-Sheng,DAI Zheng-Yu,LIU Xiang-An,ZHANG Lan-Kuan,WEN Shu-Xian,WU Xiao-Guang,YUAN Guan-Jun,PENG Chao-Hua,WENG Pei-Kun,LI Sheng-Gang,YANG Chun-Xiang. Shape Change of¹²⁹Ce at High Spin States. Chinese Physics C, 2001, 25(10): 984-988.
[11]	Li Yan,Gu Jiahui,Yu Xiaohan,Liu Jingyi,Cao Yuxiang,Zeng Jiping,Li Wenxin,Shi Shuanghui. Study of the Low Excited States of72Ge. Chinese Physics C, 1999, 23(4): 320-327.
[12]	Liu Zhong,Sun Xiangfu,Zhou Xiaohong,Lei Xiangguo,Jin Hanjuan,Guo Yingxiang,Pan Qiangyan,Zhang Yuhu,Chen Xinfeng,Luo Yixiao,Wen Shuxian,Yuan Guanjun,Li Guangsheng,Yang Chunxiang. Identification of Excited States in¹¹⁷Xe. Chinese Physics C, 1995, 19(2): 106-109.
[13]	Li Guangsheng,Dai Zhengyu,Wen Shuxian,Li Shenggang,Weng Peikun,Zhang Lankuan,Yuan Guanjun,Yang Chunxiang. Lifetime Measurement of the 16⁺Yrast State in¹²⁸Ce. Chinese Physics C, 1995, 19(12): 1057-1061.
[14]	Kong Xiangzhong,Wang Yongchang,Yang Jingkang,Yuan Junqian. The Cross Section Measurements for the Ba(n, x)¹³⁴Cs,¹³⁴Ba(n, 2n)¹³³Ba,¹⁴⁰Ce(n, 2n)¹³⁹Ce,¹⁴²Ce(n,2n)¹⁴¹Ce and²³Na(n,2n)²²Na Reactions. Chinese Physics C, 1995, 19(9): 781-785.
[15]	Wang Qun,Xie Qubing. Production Percentages of L=1 Excited Baryons in e⁺e^－Annihilation. Chinese Physics C, 1994, 18(9): 807-812.
[16]	SUN Xiang-Fu,YU Jian-Fang,GUO Ying-Xiang,LEI Xiang-Guo,LUO Yi-Xiao,WANG Ji-Cheng,XU Xiao-Ji,WEN Shu-Xian,WENG Pei-Kun,LI Sheng-Gang,YANG Chu-Xiang. Study on the Excited States of¹²⁴Cs by Heavy Ion Reaction. Chinese Physics C, 1992, 16(6): 552-555.
[17]	YANG Ke-Yan,XIA Ke-Ding. LOW-LYING RESONANCE IN CHIRAL MESON-QUARK MODEL. Chinese Physics C, 1990, 14(11): 1007-1013.
[18]	ZHAO Zhi-Zheng,GUO Ying-Xiang,PAN Zong-You,XIAO Jian-Min,LEI Xiang-Guo,LIU Hong-Ye,SUN Xi-Jun. OBSERVATION OF EXCITED STATES IN¹²⁸Ba. Chinese Physics C, 1986, 10(3): 363-366.
[19]	Zhang Zong-ye,Wang Ying-cai. THE AVERAGE FIELD OF THE ISOBAR △(1232) IN NUCLEI. Chinese Physics C, 1978, 2(1): 75-82.
[20]	CHU CHUNG-YUAN,CHEN SHIH.γ(9.5) MAY BE COLOUR-EXCITED STATES. Chinese Physics C, 1978, 2(2): 188-192.

Access

Get Citation

HUA Wei, ZHOU Xiao-Hong, ZHANG Yu-Hu, GUO Ying-Xiang, LEI Xiang-Guo, XIE Cheng-Ying, SONG Li-Tao and WANG Hua-Lei. Study of Multi-Quasiparticle Excited States in ¹³⁹Ce[J]. Chinese Physics C, 2007, 31(4): 357-360.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-06-01
Revised: 2006-08-22

Article Metric

Article Views(4759)
PDF Downloads(730)
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

Study of Multi-Quasiparticle Excited States in¹³⁹Ce

Corresponding author:ZHOU Xiao-Hong,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date:2006-06-01

Accepted Date:2006-08-22

Available Online:2007-04-05

Abstract:High-spin states in¹³⁹Ce have been populated using the¹³⁰Te(¹²C,3n) reaction at beam energy of 50MeV. The level scheme of¹³⁹Ce has been revised and extended greatly up to E=5765.0keV. The level structure of¹³⁹Ce shows typical characteristics of spherical nucleus, and the high-spin states were formed by the excitations of valence nucleons. Energies of the yrast and near yrast high-spin states in¹³⁹Ce have been calculated by the empirical shell model, and the multi-quasiparticle nature of high-spin excited states has been discussed.

HTML

Reference (1)

Study of Multi-Quasiparticle Excited States in¹³⁹Ce

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article