Signature Inversion in the πh9/2⊙νi13/2 Oblate Band of 190Tl

ZHOU Xiao-Hong; XIE Cheng-Ying; ZHANG Yu-Hu; GUO Ying-Xiang; LEI Xiang-Guo; ZHENG Yong; LIU Min-Liang; SONG Li-Tao; WANG Hua-Lei; YU Hai-Ping; LUO Peng; GUO Wen-Tao

Chinese Physics C> 2004, Vol. 28> Issue(10) : 1045-1049

Signature Inversion in the πh_9/2⊙νi_13/2 Oblate Band of ¹⁹⁰Tl

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：
High spin states in ¹⁹⁰Tl have been studied experimentally using the ¹⁶⁰Gd(³⁵Cl,5n) fusion evaporation reaction at beam energies of 167—175 MeV. A rotational band built on the πh_9/2⊙νi_13/2 configuration with oblate deformation has been established. Spin values have been firmly assigned to the πh_9/2⊙νi_13/2 oblate band by combining the present in beam experimental results with the complementary α γ correlation measurements of ¹⁹⁴Bi α decay. With the configuration and spin parity assignments, the low spin signature inversion has been revealed for the πh_9/2⊙νi_13/2 oblate band. It is the first experimental observation of low spin signature inversion for a band associated with the oblate πh_9/2⊙νi_13/2 configuration. The low spin signature inversion could be interpreted in the framework of the quasiparticles plus rotor model including a J dependent proton neutron residual interaction.

References

[1]

. Bohr A, Mottelson B R. Nuclear Structure ( II Nuclear Deformations), New York: Benjamin, 19752. Bengtsson R et al. Nucl. Phys., 1984, A415: 1893. Cardona M A et al. Phys. Rev., 1999, C59: 12984. Plettner C et al. Phys. Rev. Lett., 2000, 85: 24545. Kreiner A J et al. Phys. Rev., 1980, C21: 9336. Kreiner A J et al. Phys. Rev., 1979, C20: 22057. Kreiner A J et al. Nucl. Phys., 1978, A308: 1478. Kreiner A J et al. Nucl. Phys., 1977, A282: 2439. Kreiner A J et al. Phys. Rev., 1981, C23: 74810. Kreiner A J et al. Phys. Rev., 1980, C22: 257011. Van Duppen P et al. Nucl. Phys., 1981, A529: 26812. Huyse M et al. Phys. Lett., 1988, B201: 29313. Ellis-Akovali YA et al. Phys. Rev., 1981, C23: 48014. Kreiner A J et al. Phys. Rev. Lett., 1981, 47: 170915. Menges R et al. G. S. I. Scientific Report 8921, 1989, 3316. Hubel H et al. Nucl. Phys., 1986, A453: 31617. Porquet M G et al. Phys. Rev., 1991, C44: 244518. Reviol W et al. Phys. Scr., 1995, T56: 167

[1]	GAO Bing-Shui , ZHOU Xiao-Hong , FANG Yong-De , ZHANG Yu-Hu , LIU Min-Liang , WANG Si-Cheng , WANG Jian-Guo , MA Fei , GUO Ying-Xiang , WU Xiao-Guang , HE Chuang-Ye , ZHENG Yun , WANG Zhi-Min , YAN Xin-Liang , WANG Zhi-Gang , FANG Fang . Identification of a 9/2^-[505] isomer in the neutron-rich ¹⁹³Os nucleus. Chinese Physics C, 2014, 38(6): 064001. doi: 10.1088/1674-1137/38/6/064001
[2]	WANG Shou-Yu , ZHANG Shuang-Quan , QI Bin , MENG Jie . πg_9/2⊙νh_11/2 doublet bands in A~100 mass region. Chinese Physics C, 2009, 33(S1): 37-39. doi: 10.1088/1674-1137/33/S1/012
[3]	HUA Wei , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , Oshima M , Toh Y , Koizumi M , Osa A , Hatsukawa Y , QI Bin , ZHANG Shuang-Quan , MENG Jie , Sugawara M . Study of the νi_13/2^－1 band in ¹⁸⁹Pt. Chinese Physics C, 2009, 33(9): 743-747. doi: 10.1088/1674-1137/33/9/006
[4]	ZHANG Yu-Hu , ZHOU Xiao-Hong , HE Jian-Jun , LIU Zhong , FANG Yong-De , GUO Wen-Tao , LEI Xiang-Guo , GUO Ying-Xiang , MA Long , Moyo Ndontchueng . Search for Signature Inversion in the πi_13/2⊙νi_13/2 Bands in ^182,184,186Au. Chinese Physics C, 2006, 30(S2): 208-210.
[5]	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.
[6]	MA Long , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang . Signature Inversion in the πh_9/2×υi_13/2 Oblate Band of 188TL. Chinese Physics C, 2006, 30(5): 402-404.
[7]	ZHU Ji-Zhen , ZHOU Li-Juan , MA Wei-Xing . A Possible Halo Like Proton 2p States of ¹³N. Chinese Physics C, 2004, 28(10): 1070-1073.
[8]	WANG Hua-Lei , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LEI Xiang-Guo , LIU Min-Liang , TUO Peng , XIE Cheng-Ying , SONG Li-Tao , YU Hai-Ping , ZHENG Yong , GUO Wen-Tao , , , , . Observation of πh_11/2⊙νi_13/2 Band in Doubly-Odd ¹⁷⁰Re and Its Systematic Analysis. Chinese Physics C, 2004, 28(S1): 47-49.
[9]	SONG Li-Tao , ZHOU Xiao-Hong , GUO Ying-Xiang , SUN Zhi-Yu . Study of 1/2[660](πi_13/2) Rotation Band in ¹⁷⁹Au. Chinese Physics C, 2004, 28(2): 148-151.
[10]	ZHANG Yu-Hu , WANG Hua-Lei , LIU Min-Liang , ZHOU Xiao-Hong , GUO Wen-Tao , de Angelis , XU Fu-Rong . Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au. Chinese Physics C, 2004, 28(9): 907-913.
[11]	HU Zhao-Hui , ZHOU Li-Juan , MA Wei-Xing . A Possible Halo-Like Neutron 2p States of ¹³C. Chinese Physics C, 2003, 27(1): 36-38.
[12]	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.
[13]	ZHANG Feng , KONG Xiang-Zhong , PU Zhong-Sheng , ZHU Xue-Bin . Measurement of Cross Sections for ¹⁸⁵Re(n,2n) ^184g,mRe and ¹⁹¹Ir(n,2n)¹⁹⁰Ir Reactions by 14 MeV Neutrons. Chinese Physics C, 2002, 26(7): 678-682.
[14]	ZHANG Xin-Ming , ZHOU Huan-Qiang . Study for Superdeformed Bands in A～190 Region with Quantum Group U_qp(u₂) Model. Chinese Physics C, 2002, 26(8): 843-850.
[15]	FENG XiChen , GUO YingXiang , ZHOU XiaoHong , LEI XiangGuo , HUANG WenXue , HE JianJun , ZHU ShaoFei , LIU Zhong , ZHANG YuHu , LUO YiXiao , WEN ShuXian , YUAN GuanJun , WU XiaoGua . Investigation of the [лh_9/2vi_13/2^－1] 10^－ Isomer in ²⁰⁶At. Chinese Physics C, 2000, 24(4): 359-363.
[16]	ZHAO Guang-Yi , LU Jing-Bin , MA Ying-Jun , YIN Li-Chang , LI Xian-Feng , LI Zhi-Huan , WANG Zhi-Kui , WU Xiao-Guang , LI Guang-Sheng , WEN Shu-Xian , YANG Chun-Xiang , LIU Yun-Zuo . Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei. Chinese Physics C, 2000, 24(S1): 33-37.
[17]	ZHANG Jing-Ye . THE ROLE OF NEUTRON i_13/2 CONFIGURATION IN SUPERD EFORMED STATES IN A=120—140 MASS REGION. Chinese Physics C, 1990, 14(9): 855-858.
[18]	ZHANG Jing-Ye , Zhong Ji-Quan . ON πh_9/2 ALIGNMENT IN Pt EVEN ISOTOPES. Chinese Physics C, 1988, 12(1): 130-133.
[19]	ZHANG Jing-Ye , ZHONG Ji-Quan , JIAO Dun-Pang , GE Yuan-Xiu , MA Xi-Liang . ON THE νi_13/2PAIR IN EVEN Pt ISOTOPES. Chinese Physics C, 1987, 11(1): 128-132.
[20]	ZHANG JING-YE , ZHANG XI-ZHEN . THE ROTATION ALIGNMENT EFFECTS OF g_9/2 PROTON PAIR AND NEUTRON PAIR IN ⁶⁸Ge. Chinese Physics C, 1981, 5(1): 108-112.

Access

Get Citation

ZHOU Xiao-Hong, XIE Cheng-Ying, ZHANG Yu-Hu, GUO Ying-Xiang, LEI Xiang-Guo, ZHENG Yong, LIU Min-Liang, SONG Li-Tao, WANG Hua-Lei, YU Hai-Ping, LUO Peng, GUO Wen-Tao, Signature Inversion in the πh_9/2⊙νi_13/2 Oblate Band of ¹⁹⁰Tl[J]. Chinese Physics C, 2004, 28(10): 1045-1049.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-04-29
Revised: 1900-01-01

Article Metric

Article Views(3942)
PDF Downloads(590)
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

Signature Inversion in the πh_9/2⊙νi_13/2 Oblate Band of ¹⁹⁰Tl

Corresponding author: ZHOU Xiao-Hong,

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

Received Date: 2004-04-29

Accepted Date: 1900-01-01

Available Online: 2004-10-05

Abstract: High spin states in ¹⁹⁰Tl have been studied experimentally using the ¹⁶⁰Gd(³⁵Cl,5n) fusion evaporation reaction at beam energies of 167—175 MeV. A rotational band built on the πh_9/2⊙νi_13/2 configuration with oblate deformation has been established. Spin values have been firmly assigned to the πh_9/2⊙νi_13/2 oblate band by combining the present in beam experimental results with the complementary α γ correlation measurements of ¹⁹⁴Bi α decay. With the configuration and spin parity assignments, the low spin signature inversion has been revealed for the πh_9/2⊙νi_13/2 oblate band. It is the first experimental observation of low spin signature inversion for a band associated with the oblate πh_9/2⊙νi_13/2 configuration. The low spin signature inversion could be interpreted in the framework of the quasiparticles plus rotor model including a J dependent proton neutron residual interaction.

HTML

Reference (1)

Signature Inversion in the πh_9/2⊙νi_13/2 Oblate Band of ¹⁹⁰Tl

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Signature Inversion in the πh_9/2⊙νi_13/2 Oblate Band of ¹⁹⁰Tl

Corresponding author: ZHOU Xiao-Hong,

HTML

目录