Investigation on Structural Properties of the πi13/2⊙νi13/22-qp Band in Odd-odd 184Au

ZHANG Yu-Hu; WANG Hua-Lei; LIU Min-Liang; ZHOU Xiao-Hong; GUO Wen-Tao; de Angelis; XU Fu-Rong

Chinese Physics C> 2004, Vol. 28> Issue(9) : 907-913

Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Graduate School,Chinese Academy of Sciences,Beijing 100039,China3 INFN,Laboratori Nazionali di Legnaro,Legnaro,Italy4 Department of Technical Physics and MOE Key Laboratory,Peking University,Beijing 100871,China

Abstract
HTML
Reference
Related

PDF

Abstract：
High-spin band structures in ¹⁸⁴Au have been re-investigated using the ¹⁵⁹Tb(²⁹Si,4nγ) ¹⁸⁴Au reaction and the multi-detector array of GASP.The rotational bands built on the πh_9/2⊙_{7/2- and πi_13/2⊙νi_13/2 2-quasiparticle configurations have been extended up to higher-spin states.Of most importance,linking transitions between the two bands and to the ground state have been established leading to firm spin and parity assignments for the πi_13/2⊙νi_13/2 band in ¹⁸⁴Au.This result provides a strong evidence for the prediction that the low-spin signature inversion could occur in the πi_13/2⊙νi_13/2 bands of odd-odd nuclei in the A≈180 mass region.The quasipartice alignments and the dynamical moment of inertia have been analyzed for the πi_13/2⊙νi_13/213/2 band in ^{184^{Au,the πi_13/2 and πh_9/2 bands in ¹⁸³Au,and the νi_13/2 band in ¹⁸³Pt.It is concluded that the first band-crossing observed in the πi_13/2⊙νi_13/2 band of ₁₈₄Au corresponds to a pair of h _9/2-proton alignment.This proton alignment may play important role in the πi_13/2 band of ¹⁸³Au,the νi_13/2 band of ¹⁸³Pt,as well as in the ground-state band of ¹⁸²Pt.}}}

References

[1]

. Bengtsson R, Frisk R H,May R F et al .Nucl .Phys. , 1984, A415: 1892. ZHANG Yu-Hu, Oshima M, Morikawa T et al. High Energy Phys. and Nucl. Phys. , 2003, 27(4) : 313(in Chinese)(张玉虎,OshimaM ,MorikawaTetal.高能物理与核物理,2003,27(4):313)3. ZHANG Y H, Oshima M, Toh Y et al. Phys. Rev. , 2003, C68: 0543134. ZHANG Yu-Hu, ZHAO Qing-Zhong, ZHANG Shuang-Quan et al. HighEnergy Phys. and Nucl. Phys. , 2000, 24( Sup. ) : 21)(张玉虎,赵庆中,张双全等.高能物理与核物理,2000,24(增刊):21)5. Hojman D, Cardona M A, Napoli D R et al. Eur. Phys. J. , 2001,A10(3) : 245- 2486. Bark R A, Baxter A M, Byrne A P et al. Phys. Rev. , 2003, C67: 0143207. Ibrahim F, Kilcher P, Roussiere et al .Z. Phys. , 1994, A350: 98. Blanc F Le, Obert J, Oms J et al .Phys. Rev.Lett. , 1997, 79: 22139. Ibrahim F,Hojman D, Kreiner A J et al .Phys. Rev. , 1996, C53: 154710. Carpenter M P, Bingham C R, Courtney L H et al. Nucl. Phys. , 1990,A513: 12511. Bark R A, Espino J M, Reviol W et al. Phys.Let t. , 1997, B406: 19312. Cardona M A, Kreiner A J, Hojman D et al. Phys. Rev. , 1999, C59:129813. Hojman D, Cardona M A, Napoli D R et al. Phys. Rev. , 2003, C67:02430814. Larabee A J, Carpenter M P, Riedinger L L et al. Phys. Lett. , 1986,B169: 2115. Janzen V P, Carpent erM P, Riedinger L L et al. Phys. Rev. Lett . , 1988,61: 207316. Robinson M P, Stuchbery A E, Bark R A et al. Phys.Lett. , 2002, B530:7417. MuellerW F, JinH Q,Lewis J M et al. Phys. Rev. , 1999, C59(4) : 200918. Nyberg J, Johnson A,Carpenter M P et al. Nucl. Phys. , 1990, A511: 9219. Popescu D G, Waddington J C, Cameron J A et al. Phys. Rev. , 1997,C55: 1175

[1]	XING Zhi-Zhong . T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern. Chinese Physics C, 2012, 36(2): 101-105. doi: 10.1088/1674-1137/36/2/001
[2]	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
[3]	FANG Yong-De , ZHANG Yu-Hu , ZHOU Xiao-Hong . Study of Quasiparticles Bands in Odd-Odd ¹⁸⁸Au. Chinese Physics C, 2006, 30(2): 99-104.
[4]	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.
[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]	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.
[7]	LIU Yan-Xin , YU Shao-Ying . Effect on the Variation of the Moment of Inertia in Band K=1/2. Chinese Physics C, 2004, 28(S1): 34-35.
[8]	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.
[9]	SONG Li-Tao , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , SUN Zhi-Yu . Study of the 1/2[660] Rotational Band in ^{179,183^Au}. Chinese Physics C, 2004, 28(S1): 59-61.
[10]	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. Chinese Physics C, 2004, 28(10): 1045-1049.
[11]	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.
[12]	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.
[13]	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.
[14]	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.
[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]	Pan Qiangyan , Luo Yixiao , De Poli , de Angelis . Band Crossings and Shape Changes in the K^π=5－/2 Band in ⁷⁹Kr. Chinese Physics C, 1998, 22(3): 209-216.
[18]	Wu Chongshi . Bandcrossing of K=1/2 Bands in Odd - Proton Nuclei. Chinese Physics C, 1995, 19(11): 1024-1028.
[19]	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.
[20]	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.

Access

Get Citation

ZHANG Yu-Hu, WANG Hua-Lei, LIU Min-Liang, ZHOU Xiao-Hong, GUO Wen-Tao, de Angelis and XU Fu-Rong. Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au[J]. Chinese Physics C, 2004, 28(9): 907-913.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-02-03
Revised: 1900-01-01

Article Metric

Article Views(1809)
PDF Downloads(593)
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

Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au

Corresponding author: ZHANG Yu-Hu,

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Graduate School,Chinese Academy of Sciences,Beijing 100039,China3 INFN,Laboratori Nazionali di Legnaro,Legnaro,Italy4 Department of Technical Physics and MOE Key Laboratory,Peking University,Beijing 100871,China

Received Date: 2004-02-03

Accepted Date: 1900-01-01

Available Online: 2004-09-05

Abstract: High-spin band structures in ¹⁸⁴Au have been re-investigated using the ¹⁵⁹Tb(²⁹Si,4nγ) ¹⁸⁴Au reaction and the multi-detector array of GASP.The rotational bands built on the πh_9/2⊙_{7/2- and πi_13/2⊙νi_13/2 2-quasiparticle configurations have been extended up to higher-spin states.Of most importance,linking transitions between the two bands and to the ground state have been established leading to firm spin and parity assignments for the πi_13/2⊙νi_13/2 band in ¹⁸⁴Au.This result provides a strong evidence for the prediction that the low-spin signature inversion could occur in the πi_13/2⊙νi_13/2 bands of odd-odd nuclei in the A≈180 mass region.The quasipartice alignments and the dynamical moment of inertia have been analyzed for the πi_13/2⊙νi_13/213/2 band in ^{184^{Au,the πi_13/2 and πh_9/2 bands in ¹⁸³Au,and the νi_13/2 band in ¹⁸³Pt.It is concluded that the first band-crossing observed in the πi_13/2⊙νi_13/2 band of ₁₈₄Au corresponds to a pair of h _9/2-proton alignment.This proton alignment may play important role in the πi_13/2 band of ¹⁸³Au,the νi_13/2 band of ¹⁸³Pt,as well as in the ground-state band of ¹⁸²Pt.}}}

HTML

Reference (1)

Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au

Corresponding author: ZHANG Yu-Hu,

HTML

目录