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

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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.}}}

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[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

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[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.

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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.

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Received: 2004-02-03
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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.}}}

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

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

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