Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus <SUP>142</SUP>Pm

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

Chinese Physics C> 2004, Vol. 28> Issue(S1) : 62-65

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 China Institute of Atomic Energy, Beijing 102413, China

Abstract
HTML
Reference
Related

PDF

Abstract：
In-beam γ-ray spectroscopy experiment for odd-odd nucleus ¹⁴² Pm has been performed via the ¹²⁸Te(¹⁹F,5n)¹⁴²Pm reaction. Detailed analysis of γ-γ coincidence relationships leads to a revised high-spin level scheme for ¹⁴²Pm above the previously known 2 ms 8^－ isomer. The πh_11/2νh_11/2^－1 multiplet and the (πg_7/2－1νh_11/2^－1)_{9^-} state in this nucleus have been identified based on systematic of corresponding states in neighboring odd-odd nuclei. Configurations of several levels have been suggested from an empirical shell model approach. The 67-μs isomer is proposed to be a fully-aligned 4-hole state with predominantly the ((\pi g_{7/2}^{-1}d_{5/2}^{-2})_{15/2^+}\otimes \upnu h_{11/2}^{-1})_{13^-} configuration.

References

[1]

. Funke L, Fromm W D, Keller H J et al. Nucl. Phys., 1976,A274: 612.LIU M L, ZHANG Y H, ZHOU X H et al. Phys. Rev.,2004, C70: 0143043.Kownack J, Ryde H, Sergejew V O et al. Nucl. Phys.,1972, A196: 4984.Kownacki J, Ludziejewski J, Sujkowski Z et al. Nucl. Phys., 1974, A236: 1255.HE J J, ZHANG Y H, ZHOU X H et al. Eur. Phys. J.,2000., A9: 1576.Piiparinen M, Atac A, Blomqvist J et al. Nucl. Phys.,1996, A605: 1917.Pakkanen A, Muhonen J, Piiparinen M et al. Nucl. Phys.,982, A373: 2378.Rakel D A, Kaczarowski R, Funk E G et al. Phys. Rev.,1980, C21: 599.Audi G, Wapstra A H. Nucl. Phys., 1995, A595: 40910.Prade H, Doring J, Enghardt W et al. Z. Phys., 1987,A328: 50111.Ludziejewski J, Arnold H. Z. Phys., 1977, A281: 287

[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]	ZHU Sheng-Jiang , LI Ming-Liang , CHE Xing-Lai , XIAO Shu-Dong , CHEN Yong-Jing , YU Ying-Nan , DING Hui-Bo , XU Qiang , ZHU Li-Hua , WEN Shu-Xian , WU Xiao-Guang , LI Guang-Sheng , . Collective Band Structures of the Nuclei near N=82 Closed Shell in A=135 Region. Chinese Physics C, 2006, 30(S2): 141-145.
[3]	HE Chuang-Ye , ZHU Li-Hua , WU Xiao-Guang , WANG Zhi-Min , LIU Yin , CUI Xing-Zhu , ZHANG Zhen-Long , MENG Rui , MA Rui-Gang , SUN Hui-Bin , WEN Shu-Xian , LI Guang-Sheng , . High Spin State Structure of _106Ag. Chinese Physics C, 2006, 30(10): 966-971.
[4]	SONG Li-Tao , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , LEI Xiang-Guo , ZHENG Yong , LIU Min-Liang , de Angelis . Experimental Study of High-Spin Band Structures of ¹⁸³Au. Chinese Physics C, 2005, 29(8): 736-740.
[5]	XU Shu-Wei , XIE Yuan-Xiang , XU Fu-Rong , LI Zhan-Kui , WANG Xu-Dong , XING Ye-Bing . Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line. Chinese Physics C, 2005, 29(3): 237-239.
[6]	WANG Rui-Ping , WANG Shun-Jin , ZHANG Guang-Biao . Structure Analyses of the Nuclear Shell Model to the High-Spin States of 143Pm. Chinese Physics C, 2005, 29(6): 570-576.
[7]	XIAO Shu-Dong , ZHU Sheng-Jiang , YANG Li-Ming , ZHANG Zheng , JIANG Zhuo , CHE Xing-Lai , U Yong-Nan . High-Spin States and Negative Parity Levels in Neutron-Rich ^116,118,120Cd Nuclei. Chinese Physics C, 2004, 28(1): 37-41.
[8]	ZHANG Yu-Hu , LIU Min-Liang , de Angelis , GUO Wen-Tao . Level Scheme of ⁹⁴ Mo at High Angular Momentum. Chinese Physics C, 2004, 28(9): 941-946.
[9]	YU Hai-Ping , GUO Ying-Xiang , LEI Xiang-Guo , ZHANG Yu-Hu , ZHOU Xiao-Hong , LUO Peng , LIU Min-Liang , SONG Li-Tao , WANG Hua-Lei , XIE Cheng-Ying , ZHENG Yong , GUO Wen-Tao , , . High-Spin Level Scheme of Odd-Odd ¹⁴⁰Pr Nucleus. Chinese Physics C, 2004, 28(8): 806-809.
[10]	WANG Shou-Yu , MA Ying-Jun , LIU Yun-Zuo , ZHANG Yu-Hu , LIANG Guo-Dong . High-Spin Level Scheme of ¹²⁶Cs. Chinese Physics C, 2004, 28(5): 491-494.
[11]	ZHANG Yu-Hu , ZHOU Xiao-Hong . Experimental Study of High-Spin Band Structures in Odd-Odd ¹⁷²Re. Chinese Physics C, 2003, 27(7): 574-580.
[12]	ZHENG Yong , ZHOU Xiao-Hong , ZHANG Yu-Hu , LIU Zhong , PAN Qiang-Yan , GAN Zai-Guo , , , , , , , , , . Level Scheme of High-Spin States in ¹⁴⁵Tb. Chinese Physics C, 2002, 26(4): 359-363.
[13]	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 Nucleus ¹⁴²Ce. Chinese Physics C, 2002, 26(10): 1015-1020.
[14]	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.
[15]	HE Jian-Jun , ZHANG Yu-Hu , GUO Ying-Xiang , ZHOU Xiao-Hong , LEI Xiang-Guo , HUANG Wen-Xue , FENG Xi-Chen , ZHANG Shuang-Quan , XU Xiao , LIU Zhong , LUO Yi-Xiao , WEN Shu-Xian , WU Xiao-Guang , YUAN Guan-Jun . Investigation of High-Spin States in ¹⁴³Pm. Chinese Physics C, 2001, 25(9): 828-833.
[16]	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 lnversion of Yrast Bands in Doubly Odd Nuclei Around A=160 Mass Region. Chinese Physics C, 1997, 21(5): 393-401.
[17]	DIV align , Zhang Yuhu . Study of High Spin Isomer and its Decay Level Scheme of Doubly Odd ¹⁴⁴Pm Nucleus. Chinese Physics C, 1996, 20(5): 385-393.
[18]	Sun Huibin , Ma Yingjun , Liu Yunzuo , Zheng Hua , Wen Shuxian , Yang Chunxiang . Spin Determination of ¹⁶⁰Lu at High-Spin States. Chinese Physics C, 1995, 19(10): 929-935.
[19]	ZHU Sheng-Jiang , MA Wen-Chao . LEVEL STRUCTURE OF ¹⁵³Dy IN HIGH SPIN STATES AND SHAPE CHANGES WITH N AND I IN Dy NUCLEI. Chinese Physics C, 1990, 14(12): 1103-1109.
[20]	Liao Ji-zhi . THREE BAND INTERSECTION MODEL DESCRIBING THE HIGH SPIN STATES OF EVEN-EVEN NUCLEI. Chinese Physics C, 1980, 4(5): 626-631.

Access

Get Citation

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 and WEN Shu-Xian. Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm[J]. Chinese Physics C, 2004, 28(S1): 62-65.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-12-30
Revised: 1900-01-01

Article Metric

Article Views(2898)
PDF Downloads(524)
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

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm

Corresponding author: LIU Min-Liang,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 China Institute of Atomic Energy, Beijing 102413, China

Received Date: 2004-12-30

Accepted Date: 1900-01-01

Available Online: 2004-04-02

Abstract: In-beam γ-ray spectroscopy experiment for odd-odd nucleus ¹⁴² Pm has been performed via the ¹²⁸Te(¹⁹F,5n)¹⁴²Pm reaction. Detailed analysis of γ-γ coincidence relationships leads to a revised high-spin level scheme for ¹⁴²Pm above the previously known 2 ms 8^－ isomer. The πh_11/2νh_11/2^－1 multiplet and the (πg_7/2－1νh_11/2^－1)_{9^-} state in this nucleus have been identified based on systematic of corresponding states in neighboring odd-odd nuclei. Configurations of several levels have been suggested from an empirical shell model approach. The 67-μs isomer is proposed to be a fully-aligned 4-hole state with predominantly the ((\pi g_{7/2}^{-1}d_{5/2}^{-2})_{15/2^+}\otimes \upnu h_{11/2}^{-1})_{13^-} configuration.

HTML

Reference (1)

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm

Corresponding author: LIU Min-Liang,

HTML

目录

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus 142Pm

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus 142Pm

Corresponding author: LIU Min-Liang,

HTML

目录

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm

Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm