Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus <SUP>142</SUP>Ce

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

Chinese Physics C> 2002, Vol. 26> Issue(10) : 1015-1020

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Japan Atomic Energy Research Institute,Tokai,Ibaraki 319 1195,Japan3 Chiba Institute of Technology,Narashino,Chiba 275 0023,Japan

Abstract
HTML
Reference
Related

PDF

Abstract：
Excited states of ¹⁴²Ce,populated in deep inelastic reactions of ⁸²Se projectiles bombarding ¹³⁹La target,have been studied to medium spins using in-beam gamma spectroscopy techniques. Three new levels have been identified at 2625,2995 and 3834keV,and assigned as 8⁺,9^(－) and 11^(－),respectively,based on the analysis of the properties of gamma transitions. These new yrast states follow well the level systematics of N=84 isotones. Their structures have been discussed with the help of empirical shell-model calculations.

References

[1]

Copnell J et al .Phys. Rev，1992 . cab :13(112 Holden .J et al .Phys. Rev.,2001,C63:0243153 Korgul A et al .Eur. Phvs. Jouma1.2000,A7:1674 Urban W et al .Nucl. Phys.，1997,A613:1075 Rargioni L, et al. Phys. Rev.，1995 , 051:810576 Jewell J K et al .Phys. Rev，1995,052:12957 ZHANG C T et Al. Nucl.Phyas .，1998,A628:3868 LIU thong et al .HEP NP,2001,23:845(in Chineae)(刘忠等.高能物理与核物理.2001.25:845)9 Fumno K et al. Nucl. Instr. and Meth., 1999,A421:21110 Kranr K S et al. Nucl. Data Tables, 1973,A11:35111 Tuli J K. Nucl .Data Sheets , 2000 , 89: 67112 Baglin C; M.Nucl. Data Sheets.1997,80:113 Rohinwm S J et al.Phys . Rev . , 2000 . 062 : 04430614 Cottle P D et al.Phys. Rev.，1989,040:202815 Rlomqvist J et al.Z,. Phys.,1983,A312:2716 Audi G.Wapstra A H. Nucl.Phys.，1995.A595:40917 Glamacher T et al.Phys. Rev.，1992.C45:1619

[1]	CHE Xing-Lai , ZHU Sheng-Jiang , LI Ming-Liang , YU Ying-Nan , CHEN Yong-Jing , DING Hui-Bo , XU Qiang , ZHU Li-Hua , WU Xiao-Guang , LI Guang-Sheng , LIU Ying , HE Chuang-Ye . Level Structure with High Excitation States in ¹³⁴Ba. Chinese Physics C, 2007, 31(7): 621-624.
[2]	HUA Wei , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , LEI Xiang-Guo , XIE Cheng-Ying , SONG Li-Tao , WANG Hua-Lei . Study of Multi-Quasiparticle Excited States in ¹³⁹Ce. Chinese Physics C, 2007, 31(4): 357-360.
[3]	GUO Bing , LI Zhi-Hong , LIU Wei-Ping , BAI Xi-Xiang . Study of Halo for the Ground State and Proton Widths for the First Two Excited States of ²⁷P. Chinese Physics C, 2006, 30(S2): 183-185.
[4]	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.
[5]	LIU Hong-Liang , XU Fu-Rong . Shape of the K^π=7^－ Isomer in ¹³⁰Ce. Chinese Physics C, 2006, 30(S2): 100-102.
[6]	LI Qiong , XIA Bing-Shu , LUO Yan-An , PAN Feng , NING Ping-Zhi . SD Pair Shell Model: Collectivity of Low-Lying State for Even-Even Pt Isotopes. Chinese Physics C, 2006, 30(9): 854-857.
[7]	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 in ¹³⁴Ce. Chinese Physics C, 2005, 29(2): 130-138.
[8]	LIU Min-Liang , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LIU Zhong , LEI Xiang-Guo , HE Jian-Jun , ZHENG Yong , ZHU Li-Hua , WEN Shu-Xian . Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm. Chinese Physics C, 2004, 28(S1): 62-65.
[9]	LIU Min-Liang , ZHANG Yu-Hu , LIU Zhong , ZHOU Xiao-Hong , GUO Ying-Xiang , LEI Xiang-Guo , HE Jian-Jun , ZHENG Yong , LUO Wan-Ju , ZHU Li-Hua , WEN Shu-Xian . In-beam γ-Ray Spectroscopy of Excited States in ¹⁴¹Nd. Chinese Physics C, 2003, 27(5): 406-410.
[10]	LIU Min-Liang , ZHANG Yu-Hu , ZHOU Xiao-Hong , HE Jian-Jun , GUO Ying-Xiang , LEI Xiang-Guo , HUANG Wen-Xue , LIU Zhong , LUO Yi-Xiao , FENG Xi-Chen , ZHANG Shuang-Quan , XU Xiao , , , , . High-Spin Level Scheme of Odd-odd ¹⁴²Pm. Chinese Physics C, 2002, 26(4): 354-358.
[11]	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 of ¹²⁹Ce at High Spin States. Chinese Physics C, 2001, 25(10): 984-988.
[12]	Li Yan , Gu Jiahui , Yu Xiaohan , Liu Jingyi , Cao Yuxiang , Zeng Jiping , Li Wenxin , Shi Shuanghui . Study of the Low Excited States of 72Ge. Chinese Physics C, 1999, 23(4): 320-327.
[13]	Xie Yuanxiang , Xu Shuwei , Li Zhankui , Ma Ruichang , Ge Yuanxiu , Wang Chunfang , Huang Wenxue , Zhang Tianmei . Synthesis and Study of the New β-delayed Proton Precursor Ce in the Region of Proton-drip Line. Chinese Physics C, 1997, 21(7): 668-671.
[14]	Li Guangsheng , Dai Zhengyu , Wen Shuxian , Li Shenggang , Weng Peikun , Zhang Lankuan , Yuan Guanjun , Yang Chunxiang . Lifetime Measurement of the 16⁺ Yrast State in ¹²⁸Ce. Chinese Physics C, 1995, 19(12): 1057-1061.
[15]	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 and ²³Na(n,2n)²²Na Reactions. Chinese Physics C, 1995, 19(9): 781-785.
[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 of ¹²⁴Cs 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 IN ¹²⁸Ba. Chinese Physics C, 1986, 10(3): 363-366.
[19]	CHU CHUNG-YUAN , CHEN SHIH . γ(9.5) MAY BE COLOUR-EXCITED STATES. Chinese Physics C, 1978, 2(2): 188-192.
[20]	LI GUANG-LIE , SHEN JIAN-PING , ZHANG ZONG-YE . SOME PROPERTIES OF THE HYPERNUCLEAR EXCITED STATES IN 1P SHELL. Chinese Physics C, 1978, 2(2): 168-173.

Access

Get Citation

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 and LUO Yi-Xiao. Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce[J]. Chinese Physics C, 2002, 26(10): 1015-1020.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-11-06
Revised: 1900-01-01

Article Metric

Article Views(2768)
PDF Downloads(546)
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

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce

Corresponding author: LIU Zhong,

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Japan Atomic Energy Research Institute,Tokai,Ibaraki 319 1195,Japan3 Chiba Institute of Technology,Narashino,Chiba 275 0023,Japan

Received Date: 2001-11-06

Accepted Date: 1900-01-01

Available Online: 2002-10-05

Abstract: Excited states of ¹⁴²Ce,populated in deep inelastic reactions of ⁸²Se projectiles bombarding ¹³⁹La target,have been studied to medium spins using in-beam gamma spectroscopy techniques. Three new levels have been identified at 2625,2995 and 3834keV,and assigned as 8⁺,9^(－) and 11^(－),respectively,based on the analysis of the properties of gamma transitions. These new yrast states follow well the level systematics of N=84 isotones. Their structures have been discussed with the help of empirical shell-model calculations.

HTML

Reference (1)

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce

Corresponding author: LIU Zhong,

HTML

目录

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus 142Ce

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus 142Ce

Corresponding author: LIU Zhong,

HTML

目录

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus ¹⁴²Ce