Chinese Physics C > 2000, Vol. 24 > Issue(S1): 33-37

Systematic Features of π1/2^－[541]⊙νi_13/2Bands in Doubly-Odd Nuclei

Department of Physics,Jilin University,Changchun 130023,China2 China Institute of Atomic Energy,Beijing 102413,China

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Five rotational bands with configurations{π7/2 ⁺[404]⊙ν5/2 ⁺[642]}K=6,{π9/2 ⁺[541]⊙ν5/2 ⁺[642]}K=7{π1/2 ⁺[411]⊙ν5/2 ⁺[642]}K=2,{π1/2 ⁺[541]⊙ν5/2 ⁺[642]}K=2 and {π5/2 ⁺[402]⊙ν5/2 ⁺[642]}K=5,were populated through the ¹⁵²Sm( ¹⁹F,5n) ¹⁶⁶Lu reaction at a beam energy of 97MeV.The last three bands are identified in the present study.A phase change of level staggering is observed and low spin signature inversion is suggested in the band {π1/2 ^－[541]⊙ν5/2 ⁺[642]}K=2.The inversion spin 17.5h (spin at inversion point)of this band fits well to the systematic variation trend of inversion spin,increasing with N and decreasing with Z,for the known π1/2 ^－[541]⊙νi _13/2bands observed in odd-odd deformed nuclei around A=170.

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[1]

Espino J M, Hagemmn G B, Ekzuden I G et al. Nucl. Phys., 1998, A640: 1632 Reviol W, Riedinger L L, WANG X Z et al. Phys. Rev.,1999, C59 : 13513 Bark R A, Canlsson H, Freemen S J et al. Nucl. Phys., 1998, A630: 603.4 Levinton G et al. Phys. Rev.,1999, C60 : 044309-15 Kondev F G, Dracoulis G D. Byme A P et al. Nucl. Phy,., 1998. A632:4736 Cardona M A, Kreiner A J, Hojman D et al. Phys. Rw., 1999, (39 : 12987 Hojman D, Kreiner A J, Davidson M et al. Phys. Rev. . 1992, C45:908 Jonsson S, Lyttkens J, Carlen L et al. Nucl. Phys., 1984, A442: 3979 W C H, Hagemann G B, Espin, J M et al. Nucl. Phys, 1990, A511 : 15710 Roy N, Jonsson S, Ryde H et al. Nucl. Phys., 1982, 4382: 12511 Cronma M. Degraaf J.Drake T E et al.Phys.Rev. .1999,C59:240612 Krriner A J, Hojman D, Davidsm J et al. Phys. Lett. , 1988, B215: 62913 Kreiner A J. Vanin V R. Beak F A et al. Phys. Rev. . 1989.C40: R48714 ZHANG Y H. ZHANG S Q. ZHAO Q Z et al. Phys. Rev. . 1999. C60:044311- 115 Jensen H J .Hagemam G B.Tjorn P O et al. Z. Phys. ,1991. A340: 35116 Katoch S K, Gupta S L, Pancholi S C et al. Eur. Phys. J. , 1999, A4: 30717 ZHANG Y H, Hayakaula H, QAba M et al. Eur. Phys. J. ,1999, A5: 34518 Bengtsson R . Pinston J A. Bameoud D et al. Nucl. Phys., 1982, A389: 158 119 Kreiner A J . Mariscotti M A J et al. J. Phys. .1980,G6:L1320 JAIN A K. Kvasil J, Sheline R K et al.Phys.Lett., 1988,B209: 1921 HAMAMOTO L.Phys.Lett. .1990,B235:22122 Hara K. SUN Y. Nucl. Phys., 1991. 531: 22123 Semmes P. B . Ragnarssm L. Conf. High Spin Physics and Gamma-Soft Nuclei. Pittsburg. World Scientific . Singapore.1991.1990 September. 500; Gonf. On Future Directions in Nuclear Physics with 4(Detection Systems of the Germation.Snasbourg. (AIP. New York. 1992)1991 March. 55624 Tajima N. Nucl. Phys., 1994. A572: 365

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[16]	Wu Chongshi. Bandcrossing of K=1/2 Bands in Odd - Proton Nuclei. Chinese Physics C, 1995, 19(11): 1024-1028.
[17]	ZHANG Jing-Ye. THE ROLE OF NEUTRON i_13/2CONFIGURATION IN SUPERD EFORMED STATES IN A=120—140 MASS REGION. Chinese Physics C, 1990, 14(9): 855-858.
[18]	YAO Li-Shan,ZHOU En-Chen,CAI Dun-Jiu,JI Shi-Yin. THE SYSTEMATIC CALCULATIONS OF (n,2n) AND (n,3n) REACTION CROSS SECTIONS FOR MEDIUM-HEAVY NUCLEI AT 14.5MeV. Chinese Physics C, 1988, 12(5): 683-688.
[19]	YAO Li-Shan,ZHOU En-Chen,CAI Dun-Jiu. A SYSTEMATIC STUDY OF (n, 2n) CROSS SECTION AT 14MeV. Chinese Physics C, 1987, 11(4): 533-542.
[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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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 and LIU Yun-Zuo. Systematic Features of π1/2 ^－[541]⊙νi _13/2Bands in Doubly-Odd Nuclei[J]. Chinese Physics C, 2000, 24(S1): 33-37.

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Received: 1900-01-01
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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Systematic Features of π1/2^－[541]⊙νi_13/2Bands in Doubly-Odd Nuclei

Corresponding author:ZHAO Guang-Yi,

Department of Physics,Jilin University,Changchun 130023,China2 China Institute of Atomic Energy,Beijing 102413,China

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:2000-07-15

Abstract:Five rotational bands with configurations{π7/2⁺[404]⊙ν5/2⁺[642]}K=6,{π9/2⁺[541]⊙ν5/2⁺[642]}K=7{π1/2⁺[411]⊙ν5/2⁺[642]}K=2,{π1/2⁺[541]⊙ν5/2⁺[642]}K=2 and {π5/2⁺[402]⊙ν5/2⁺[642]}K=5,were populated through the¹⁵²Sm(¹⁹F,5n)¹⁶⁶Lu reaction at a beam energy of 97MeV.The last three bands are identified in the present study.A phase change of level staggering is observed and low spin signature inversion is suggested in the band {π1/2^－[541]⊙ν5/2⁺[642]}K=2.The inversion spin 17.5h (spin at inversion point)of this band fits well to the systematic variation trend of inversion spin,increasing with N and decreasing with Z,for the known π1/2^－[541]⊙νi_13/2bands observed in odd-odd deformed nuclei around A=170.

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Systematic Features of π1/2^－[541]⊙νi_13/2Bands in Doubly-Odd Nuclei

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