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

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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

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[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.
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[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.

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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.

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

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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.

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

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

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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