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Doubly Decoupled Structure in Odd-Odd ^(178-186)Ir Nuclei

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Chinese Physics Letters 2001年第1期18卷 27-29页

作者：张玉虎 T.Hayakawa M.Oshima Y.Toh j.katakura Y.Hatsukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.Sugawara T.Komatsubara Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 japan Atomic Energy Research Institute TokaiIbaraki 319-1195Japan Chiba University Inage-kuChiba 263-8512Japan japan Chiba Institute of Technology NarashinoChiba 275-0023Japan Institute of Physics and Tandem Accelerator Center University of TsukubaIbaraki 305-0006Japan

High-spin states in 178'180Ir have been studied via the 152'154Sm(31P,5nγ)reactions through excitation functions,x-γandγ-γ-t coincidence measurements.A doubly decoupled band has been identified in each of the *** level spacings for such structures in odd-odd ^(178-186)Ir have been inspected and thus a regular level staggering as a function of the neutron number is *** particular phenomenon may be associated with bandmixing at lower excitation energies.

关键词： excitation coincidence

Search for Signature Inversion in the πi_(13/2) vi_(13/2) Band in Odd-Odd ^(178I)r

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Chinese Physics Letters 2001年第10期18卷 1323-1326页

作者：张玉虎 T.Hayakawa M.Oshima Y.Toh j.katakura Y.Hatsukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.Sugawara T.Komatsubara K.Furuno Institute of Modern Physics:Chinese Academy of Sciences Lanzhou 7300002 japan Atomic Energy Research Institute TokaiIbaraki 319-1195Japan Chiba University Inage-kuChiba 263-8512Japan Chiba Institute of Technology NarashinoChiba 275-0023Japan Institute of Physics and Tandem Accelerator Center University of TsukubaIbaraki 305-0006Japan

The search for the ri_(13/2) vi_(13/2 ) band in ^(178)Ir has been conducted through the ^(152)Sm(^(31) P, 5nγ)^( 178)Ir reaction and the excitation functions, x-γ and γ-γ-t coincidence measurements. Five rotational bands have been newly identified. The low-spin signature inversion in the πi13/2 vi13/2 band has been confirmed by the observations of linking transitions and signature crossing at I = 25.5 h. The inversion phenomenon in rh11/2 vi_(13/2), rh9/2 vi_(13/2) and ri_(13/2) vi13/2 structures in ^(178)Ir provides a unique testing ground for different theoretical interpretations.

关键词： signature Inversion

Identification of a New Four-Quasiparticle State in Odd-Odd 186Au

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Chinese Physics Letters 2012年第2期29卷 63-66页

作者：李仕成石跃张玉虎周小红许甫荣方永得柳敏良丁兵郭松李广顺周厚兵 M.Oshima Y.Toh M.Koizumi A.Osa A.Kimura Y.Hatsukawa H.Hayakawa T.Shizuma j.katakura M.Matsuda T.Morikawa M.Sugawara H.Kusakari Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 Graduate University of Chinese Academy of Sciences Beijing 100049 School of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking UniversityBeijing 100871 japan Atomic Energy Agency TokaiIbaraki 319-1195Japan Department of Physics Kyushu UniversityFukuoka812-81Japan Chiba Institute of Technology NarashinoChiba 275-0023Japan Chiba University Inage-kuChiba 263-8512Japan

The high-spin level structure of 186 Au is re-investigated by means of in-beam γ-ray spectroscopy via the 172 Yb(19 F,5nγ )186 Au *** oblate bands previously reported are revised and extended to higher-spin states.A new Iπ =(20+) excited state has been identified and assigned to the πh-111/2 (×) vi-213/2h-19/2 *** total Routhian surface and cranked shell model calculations suggest that the πh-111/2 (×) vi-213/2h-19/2 band in 186Au has a non-axial deformation.

关键词： configuration deformation reaction

^(179)Au的1/2[660](πi_(13/2))转动带

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高能物理与核物理 2004年第2期28卷 148-151页

作者：宋立涛周小红郭应祥孙志宇 M.Oshima T.Toh A.Osa M.Koizumi j.katakura Y.Hatsukawa M.Matsuda M.Sugawara 中国科学院近代物理研究所兰州730000 japan Atomic Energy Research Institute Chiba Institute of Technology

利用能量为 16 4— 180MeV的 3 5Cl束流 ,通过重离子核反应 14 9Sm(3 5Cl ,5n)研究了 179Au的高自旋态能级结构 .实验进行了γ射线的激发函数、X γ和γ γ t符合测量 .基于对实验测量结果的分析 ,首次建立了 179Au的 1 2 [6 6 0 ](πi1... 详细信息

利用能量为 16 4— 180MeV的 3 5Cl束流 ,通过重离子核反应 14 9Sm(3 5Cl ,5n)研究了 179Au的高自旋态能级结构 .实验进行了γ射线的激发函数、X γ和γ γ t符合测量 .基于对实验测量结果的分析 ,首次建立了 179Au的 1 2 [6 6 0 ](πi13 2 )转动带 .结合已有的实验数据 ,着重讨论了奇AAu核中1 2 [6 6 0 ](πi13 2 )

关键词：重离子核反应转动带能级纲图 γ射线质子数激发能原子核物理

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^(179)Pt转动带性质的研究

高能物理与核物理 2004年第6期28卷 584-587页

作者：徐岩冰周小红宋立涛郭应祥孙志宇 M.Oshima T.Toh A.Osa M.Koizumi j.katakura Y.Hatsukawa M.Matsuda M.Sugawara 中国科学院近代物理研究所兰州730000 japan Atomic Energy Research Institute Chiba Institute of Technology

利用能量为 16 4— 180MeV的3 5Cl束流 ,通过14 9Sm(3 5Cl,p4n)反应研究了179Pt的高自旋态能级结构 .进行了γ射线的激发函数、X γ和γ γ t符合测量 ,建立了基于 1 2 -[5 2 1],5 2 -[5 12 ]和7 2 + [6 33]组态的 3个转动带 .实验上... 详细信息

利用能量为 16 4— 180MeV的3 5Cl束流 ,通过14 9Sm(3 5Cl,p4n)反应研究了179Pt的高自旋态能级结构 .进行了γ射线的激发函数、X γ和γ γ t符合测量 ,建立了基于 1 2 -[5 2 1],5 2 -[5 12 ]和7 2 + [6 33]组态的 3个转动带 .实验上观测到 1 2 -[5 2 1]带在ω =0 2 7MeV附近顺排角动量突然增大 ,且 7 2 + [6 33]带具有较大的旋称劈裂 .通过比较奇APt同位素和179Pt的同中子素能级结构的系统性 ,对相关现象进行了分析和讨论 .

关键词：铂原子转动带旋称劈裂在束γ谱学原子物理学同位素

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Rotational Band Structures in Odd-Odd 178Ir

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IMP & HIRFL Annual Report 2001年 40-41页

作者： T.Hayakawa,M.Oshima,Y.Toh,j.katakura,Y.Hatsukawa,M.Matsuda,N.Shinohara,T.Ishii,H.Kusakari,M.Sugawara,T.Komatsubara,K.Furuno japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 japan. Chiba University Inage-ku Chiba 263-8512 japan. Chiba University Inage-ku Chiba 263-8512 japan. Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki305-0006 japan. Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki305-0006 japan.

High-spin states of odd-odd;178;Ir has been studied by using;152;Sm(;31;P,5n);178;Ir ***;31;P bcam was provided by the jAERI（japan Atomic Enetgy Research Institute）tandem *** target is an enriched;152;Sm metallic foil of 1 mg/cm;2;thickness with 5 mg/cm;2;Au *** excitation function was measured by using;31;P beam from 150 to 170 MeV with 5 MeV energy *** bearn energy of 160 MeV

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Rotational Band Structures in Odd-Odd ^(178)Ir

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IMP & HIRFL Annual Report 2001年第1期 40-41页

作者： T.Hayakawa M.Oshima Y.Toh j.katakura Y.Hatsukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.Sugawara T.Komatsubara K.Furuno japan Atomic Energy Research Institute TokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstituteTokaiIbaraki 319-1195Japan.Chiba UniversityInage-kuChiba 263-8512Japan.Chiba UniversityInage-kuChiba 263-8512Japan.Institute of Physics and Tandem Accelerator CenterUniversity of TsukubaIbaraki305-0006Japan.Institute of Physics and Tandem Accelerator CenterUniversity of TsukubaIbaraki305-0006Japan.

High-spin states of odd-odd^(178)Ir has been studied by using^(152)Sm(^(31)P,5n)^(178)Ir ***^(31)P bcam was provided by the jAERI(japan Atomic Enetgy Research Institute)tandem *** target is an enriched^(152)Sm metallic foil of 1 mg/cm^2 thickness with 5 mg/cm^2 Au *** excitation function was measured by using^(31)P beam from 150 to 170 MeV with 5 MeV energy *** bearn energy of 160

关键词： enriched metallic excitation Atomic bands tandem transitions steps coincidence accelerator

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^(146)Tb的能级结构研究

高能物理与核物理 2003年第10期27卷 884-887页

作者：谢成营周小红郑勇张玉虎刘忠潘强岩甘再国 T.Hayakawa M.Oshima T.Toh T.Shizuma j.katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara 中国科学院近代物理研究所兰州730000 japan Atomic Energy Research Institute TokaiIbaraki 319-1195Japan Chiba University Inage-kuChiba 263-8512Japan Chiba Institute of Technology NarashinoChiba 275-0023Japan

利用能量为161—175MeV的^(32)S束流,通过反应^(118)Sn(^(32)S,1p3n)^(146)Tb研究了双奇核^(146)Tb的高自旋态能级结构。实验进行了γ射线的激发函数、γ射线的各向异性度、X-γ和γ-γ-t符合测量。基于这些测量结果,建立了激发能达8390... 详细信息

利用能量为161—175MeV的^(32)S束流,通过反应^(118)Sn(^(32)S,1p3n)^(146)Tb研究了双奇核^(146)Tb的高自旋态能级结构。实验进行了γ射线的激发函数、γ射线的各向异性度、X-γ和γ-γ-t符合测量。基于这些测量结果,建立了激发能达8390kev的^(146)Tb核的能级纲图,其中包括新发现的41条γ射线和新建立的27个能级,并指定了^(146)Tb新发现能级的自旋值。用一个h_(11/2)价质子和一个h_(11/2)^(-1)价中子空穴耦合、πh_(11/2)υh_(11/2)^(-1)与^(146)Gd核实激发态的耦合对^(146)Tb的能级结构进行了定性地讨论。

关键词：在束γ谱学高自旋态能级纲图 ^146Tb 能级结构双奇核原子核结构

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原子核145Tb的多准粒子激发

原子核145Tb的多准粒子激发