Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus <SUP>170</SUP> Ta

DENG Fu-Guo; YANG Chun-Xiang; SUN Hui-Bin; WU Xiao-Guang; LU Jing-Bin; ZHAO Guang-Yi; HAN Guang-Bing; PENG Zhao-Hua; YIN Li-Chang; WEN Shu-Xian; LI Guang-Sheng; YUAN Guan-Ju

Chinese Physics C> 2002, Vol. 26> Issue(5) : 491-500

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta

The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China2 China Institute of Atomic Energy, Beijing 102413, China3 Institute of Nuclear Technique, Shenzhen University, Shenzhen 518060, China4 Department of Physics, Jilin University, Changchun 130023, China5 Beijing Radiation Center, Beijing 100875, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The high spin states of odd odd nucleus ¹⁷⁰Ta were populated via the ¹⁵⁵Gd(¹⁹F,4n)¹⁷⁰Ta reaction with beam energy of 97 MeV provided by the HI-13 tandem accelerator of China Institute of Atomic Energy. Three rotational bands have been pushed to higher spin states and the signature inversion point of the semidecoupled band based on the πh_9/21/2^－⊙νi_13/2 configuration has been observed to be 19.5h. The systematic features of the signature inversion in semidecoupled bands in odd-odd rare earth nuclei were summarized. The systematic differences of signature inversion, especially the difference in the energy splitting between the yrast bands and the semidecoupled bands in odd-odd rare earth nuclei are pointed out and discussed for the first time. It seems that p-n interaction between the odd proton and odd neutron in the odd-odd nuclei plays an important role.

References

[1]

. LIU Yun-Zuo et al. Phys. Rev.,1995,C52:2514 2. Bark R A et al. Phys. Lett.,1997,B406:193 3. ZHAO G Y et al. Eur. Phys. J.,2000,A9:299 4. Levinton G et al. Phys. Rev.,1999,C60:044309 5. Hojman D et al. Phys. Rev.,2000,C61:0643226. Cardona M A et al. Phys. Rev.,1999,C59:1298 7. ZHANG Y H et al. Eur. Phys. J.,2000,A8:4398. ZHANG Y H et al. Phys. Rev.,1999,C60:044311 9. Bacelar J C et al. Nucl. Phys.,1985,A442:547 10. ZHANG Y H et al. Chin. Phys. Lett,1997,14:409;Eur. Phys. J.,1998,A1:119 11. Lisle J C et al. Nucl. Phys.,1981,A366:281 12. ZHANG Y H et al. Eur. Phys. J.,1999,A5:345 13. Katoch S K et al. Eur. Phys. J.,1999,A4:30714. Kondev F G et al. Nucl. Phys.,1998,A632:473 15. ZHANG Y H et al. High Energy Phys. and Nucl. Phys.,2000,24:369(in Chinese)(张玉虎等.高能物理与核物理,2000,24:369)16. Kreiner A J et al. Phys. Rev.,1989,C40:R48717. Drissi S et al. Nucl. Phys.,1986,A451:313 18. YANG Chun-Xiang et al. Chin. J. Nucl. Phys.,1994,16:223;217

[1]	ZHOU Xiao-Hong , XING Ye-Bing , MA Long , ZHANG Yu-Hu , LIU Yuan . Low-Spin Signature Inversion in the πh_9/2⊙νi_13/2 Oblate Band. Chinese Physics C, 2006, 30(S2): 211-213.
[2]	ZHOU Wen-Ping , MA Ying-Jun , LU Jing-Bin , ZHAO Guang-Yi , WANG Shou-Yu , SUN Liang , YANG Dong , ZHAO Yan-Xin , LI Xian-Feng , LIU Yun-Zuo , ZHU Li-Hua , WU Xiao-Guang , CUI Xing , , . Signature Inversion in Weakly-Deformed Doubly-Odd ¹⁵⁸Tm. Chinese Physics C, 2006, 30(10): 988-995.
[3]	HE Chuang-Ye , ZHU Li-Hua , WU Xiao-Guang , WANG Zhi-Min , LIU Ying , SUN Hui-Bin , WEN Shu-Xian , LI Guang-Sheng , YANG Chun-Xiang . Systematics of Signature Inversion in Odd-Odd Nuclei in the A～100 Mass Region. Chinese Physics C, 2006, 30(S2): 175-176.
[4]	HUA Hui , WAMG Shuo , MENG Jie , LI Zhi-Huan , ZHANG Shuang-Quan , XU Fu-Rong , LIU Hong-Liang , ZHOU Shan-Gui , YE Yan-Lin , JIANG Dong-Xing , ZHENG Tao , ZHU Li-Hua , WU Xiao-G , , , . High-Spin States in ¹⁵²Gd. Chinese Physics C, 2006, 30(S2): 157-159.
[5]	SHEN Shui-Fa , WANG Feng-Ge , PENG Nie , CHEN Heng-Gui , LU Hao , WU Yong-Peng . Signature Inversion in the Odd-Odd Nuclei with Mass A～80. Chinese Physics C, 2006, 30(12): 1234-1237.
[6]	YU Shao-Ying , TU Ya , CHEN Yong-Shou , SHEN Cai-Wan . Theoretical Research on Traxial Superdeformed Band and High Spin State Nuclei in ¹⁶⁸Lu. Chinese Physics C, 2005, 29(3): 258-262.
[7]	LIU Ying , LI Ming-Fei , ZHU Li-Hua , WANG Zhi-Min , WU Xiao-Guang , CUI Xing-Zhu , HE Chuang-Ye , ZHANG Zhen-Long , MENG Rui , MA Rui-Gang , LI Guang-Sheng , WEN Shu-Xian , , . Experimental Study on High Spin States of ¹⁵⁶Tm. Chinese Physics C, 2004, 28(S1): 31-33.
[8]	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.
[9]	WANG Hua-Lei , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LEI Xiang-Guo , LIU Min-Liang , LUO Peng , XIE Cheng-Ying , SONG Li-Tao , YU Hai-Ping , ZHENG Yong , GUO Wen-Tao , , , , . Experimental Study of High-Spin States in Odd-Odd ¹⁷⁰Re. Chinese Physics C, 2004, 28(7): 699-705.
[10]	ZHANG Yu-Hu , ZHOU Xiao-Hong , HE Jian-Jun , LIU Zhong , GAN Zai-Guo , , , , , , , , , , . Study of Signature Inversion in the πi_13/2νi_13/2Bands of Odd Odd Nuclei. Chinese Physics C, 2003, 27(4): 313-318.
[11]	WANG Zhi-Min¹ , WEN Shu-Xian¹ , WU Xiao-Guang¹ , PENG Zhao-Hua¹ , LI Guang-Sheng¹ , YUAN Guan-Jun¹ , MA Rui-Gang¹ , HE Chuang-Ye¹ , YANG Chun-Xiang¹ , GUO Ying-Xiang² , LEI Xiang-Guo² , HE Jian-Jun<sup . Study on High Spin States. Chinese Physics C, 2003, 27(1): 24-27.
[12]	ZHANG Yu-Hu , WEN Shu-Xian , ZHU Li-Hua . Signature Inversion Phenomena in the Rotational Bands of Odd-Odd ¹⁷⁶Ir. Chinese Physics C, 2002, 26(5): 445-449.
[13]	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.
[14]	ZHANG YuHu . Signature Inversion in the Rotational Bands of Odd-Odd ¹⁷⁸Ir. Chinese Physics C, 2000, 24(12): 1123-1130.
[15]	Han Guangbing , Wen Shuxian , Liu Xiangun , Wu Xiaoguang , Li Guangsheng , Yuan Guanjun , Weng Peikun , Yang Chunxiang , Ma Yingjun , Lu Jingbin . Study of the High Spin States of Stable ⁸⁴Sr. Chinese Physics C, 1999, 23(7): 601-606.
[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]	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.
[18]	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 Xiangfu , Zhu Yongtai , . Band Structure in Doubly Odd ¹⁷⁰Ta. Chinese Physics C, 1997, 21(2): 187-191.
[19]	LI Wen-Xin , LI Yun-Sheng , SUN Ru-Lin , SUN Tong-Yu , WU Ding-Qing , ZHAO Li-Li , ZHENG Yu-Ming , QI Da-Hai , SA Ben-Hao . Study on Target Residues From the Interaction of ¹⁸¹Ta with 45MeV/A ¹²C Ions. Chinese Physics C, 1991, 15(9): 832-835.
[20]	SHEN Xiao-Yan , HU Ji-Min . The Semiclassical Study of Nuclear High Spin States. Chinese Physics C, 1991, 15(8): 720-729.

Access

Get Citation

DENG Fu-Guo, YANG Chun-Xiang, SUN Hui-Bin, WU Xiao-Guang, LU Jing-Bin, ZHAO Guang-Yi, HAN Guang-Bing, PENG Zhao-Hua, YIN Li-Chang, WEN Shu-Xian, LI Guang-Sheng, YUAN Guan-Ju, Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta[J]. Chinese Physics C, 2002, 26(5): 491-500.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-07-05
Revised: 1900-01-01

Article Metric

Article Views(4098)
PDF Downloads(599)
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 on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta

Corresponding author: DENG Fu-Guo,

The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China2 China Institute of Atomic Energy, Beijing 102413, China3 Institute of Nuclear Technique, Shenzhen University, Shenzhen 518060, China4 Department of Physics, Jilin University, Changchun 130023, China5 Beijing Radiation Center, Beijing 100875, China

Received Date: 2001-07-05

Accepted Date: 1900-01-01

Available Online: 2002-05-05

Abstract: The high spin states of odd odd nucleus ¹⁷⁰Ta were populated via the ¹⁵⁵Gd(¹⁹F,4n)¹⁷⁰Ta reaction with beam energy of 97 MeV provided by the HI-13 tandem accelerator of China Institute of Atomic Energy. Three rotational bands have been pushed to higher spin states and the signature inversion point of the semidecoupled band based on the πh_9/21/2^－⊙νi_13/2 configuration has been observed to be 19.5h. The systematic features of the signature inversion in semidecoupled bands in odd-odd rare earth nuclei were summarized. The systematic differences of signature inversion, especially the difference in the energy splitting between the yrast bands and the semidecoupled bands in odd-odd rare earth nuclei are pointed out and discussed for the first time. It seems that p-n interaction between the odd proton and odd neutron in the odd-odd nuclei plays an important role.

HTML

Reference (1)

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta

Corresponding author: DENG Fu-Guo,

HTML

目录

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus 170 Ta

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus 170 Ta

Corresponding author: DENG Fu-Guo,

HTML

目录

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta

Study on the High-Spin States and Signature Inversion of Odd-Odd Nucleus ¹⁷⁰ Ta