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Low-spin Signature Inversion in πi_(13/2) ■vi_(13/2) Bands of Odd-odd ^(176,178)Ir and ^(182,184)Au Nuclei

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IMP & HIRFL Annual Report 2001年第1期 39-40页

作者： Zhang Yulu M.Oshima T.Morikawa Zhou Xiaohong Liu Zhong He Jianjin Guo Yingxiang Lei Xiangguo T.Hayakawa T.Toh T.Shizuma M.koizumi A.Osa J.katakura Y.Hatsukawa M.Matsuda N.Shinohara T.Ishii H.kusakari M.Sugawara k.furuno T.komatsubara T.Une Wen Shuxian Zhu Lihua Wang Zhiming Xu Furong Japan Atomic Energy Research Institute TokaiIbaraki319-1195Japan. Department of Physics Kyushu UniversityFukuoka 812-81Japan. Chiba Institute of Technology NarashinoChiba 275-0023Japan. Instiute of Physics and Tandem Accelerator Center University of TsukubaIbaraki 305-0006Japan China Institute of Atomic Energy Beijing 102413 Departrent of Technical Physics Peking UniversityBeijing 100871.

Low-spin signature inversion is a very interesting phenomenon observed in a number of deformed odd-odd nuclei and it has been attracting large experimental and theoretical *** to date,the signature inversion has been systematically observed throughout the chart of nuclides in theπg_(9/2)■vg_(9/2),πh_(11/2),πh_(11/2)■vi_(13/2),andπh_(9/2)■vi_(13/2)configurations.

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双奇核172Re高自旋态实验研究

双奇核172Re高自旋态实验研究

Experimental Observation of High Spin States in ^(135)La Nucleus

第十二届全国核物理大会

作者：张玉虎王华磊周小红柳敏良 M．Oshima Y．Toh M．koizimi A．Osa A．kimura Y．Hatsukawa T．Morikawa M．Nakamura M．Sugawara H．kusakari T．komatsubara k.furuno 中国科学院近代物理研究所中国科学院近代物理研究所中国科学院近代物理研究所中国科学院近代物理研究所 Japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Department of Physics kyushu University Fukuoka 812-81Japan Department of Physics kyushu University Fukuoka 812-81Japan Chiba Institute of Technology Narashino Chiba 275-0023Japan Chiba University Inage-ku Chiba 263-8512Japan Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki 305-0006Japan Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki 305-0006Japan

利用149Sm（27Al,4nγ）172Re反应布居了形变双奇核172Re的高自旋态,用12套带有BGO 反康普顿抑制的高纯锗深测器阵列进行了在束γ实验测量,首次建立了172Re由3个转动带构成的高自旋态能级纲图．研究和讨论了3个转动带的结构特征,基于已... 详细信息

利用149Sm（27Al,4nγ）172Re反应布居了形变双奇核172Re的高自旋态,用12套带有BGO 反康普顿抑制的高纯锗深测器阵列进行了在束γ实验测量,首次建立了172Re由3个转动带构成的高自旋态能级纲图．研究和讨论了3个转动带的结构特征,基于已有的高自旋态核结构知识并通过系统学比较和分析指出它们的准粒子组态分别为πh11／2（?）vi13/2,πh9／2（?）vi13/2和（?）π1／2-[541]（?）vl／ 2-[521]．发现前两个转动带在自旋小于18时其转动能级呈现反常的旋称劈裂．

关键词：在束γ谱学双奇核172Re 转动带旋称反转

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2003年第1期 41-41页

作者： LuoPeng ZhangYuhu ZhouXiaohong LiuMinliang GuoYingxiang LiuZhong LeiXiangguo SongLitao ZhengYong WangHualei YuHaiping XieChengying MaYingjun Y.Sasaki k.Yamada H.Ohshima S.Yokose M.Ishizuka T.komatsubara k.furuno 不详 InstituteofPhysicsandTandemAcceleratorCenter Universityof-TsukubaIbarakiJapan.

High spin states of ^135La have been experimentally studied by ^128Te(^10B, 3n)^135La reaction. The ^10B beam was provided by the tandem accelerator laboratory in the University of Tsukuba, Japan. Based on the γ-γ c... 详细信息

关键词：高速旋转状态实验观测镧核子二级加速器

Multi-quasiparticle Excitations in 145Tb

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IMP & HIRFL Annual Report 2003年 46-46页

作者： T.Hayakawa,M.Oshima,T.Toh,T.Shizuma,J.katakura,Y.Hatsukawa,M.Matsuda,H.kusakari,M.Sugawara,k.furuno,T.komatsubara Chiba University Inage-ku Chiba 263-8512 Japan. Chiba Institute of Technology Narashino Chiba 275-0023 Japan. Institute of Physics and Tandem Accelerator Center University of Tsukuba Japan. Institute of Physics and Tandem Accelerator Center University of Tsukuba Japan. 1]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan. 2]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan. 3]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan. 4]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan. 5]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan. 6]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan. 7]Japan Atomic Energy Research Institute. Tokai. Ibaraki 319- Janan.

Study of in-beam γ-ray spectroscopy of 145Tb has been carried out by using 118Sn (32S, 1p4n) 145Tb *** functions, X-γ-t and γ-γ-t coincidences and γ-ray anisotropies were measured. Here, t refers to therelative time difference between any two coincident γ-rays detected within ±200 ns. A level scheme of 145Tb,including 81 γ-transitions as shown in Fig.1, has been established up to 7.4 MeV in excitation energy and spin-

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Observation of Rotational Bands in Odd-odd 172Re

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IMP & HIRFL Annual Report 2002年 33-33页

作者： M.Oshima,Y.Toh,M.koizumi,A.Osa,A.kimura,Y.Hatsukawa,T.Morikawa,M.Nakamura,M.Sugawara,H.kusakari,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. Department of Physics kyushu University Fukuoka 812-81 Japan. Department of Physics kyushu University Fukuoka 812-81 Japan. Chiba Institute of Technology Narashino Chiba 275-0023 Japan. Chiba University Inage-ku Chiba 263-8512 Japan. Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki 305-0006 Japan. Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki 305-0006 Japan.

High-spin states of odd-odd 172Re has been studied, for the first time, by using 149Sm(27Al, 4n) 172Re reaction. The 27A1 beam was provided by the JAERI (Japan Atomic Energy Research Institute) tandem accelerator. The target was an enriched 149Sm metallic powder of 2.1 mg/cm2 thickness evaporated on to a 5.5 mg/cm2 Pb backing layer. A γ-ray detector array was used comprising 12 HPGe's with BGO anti-Compton

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Multi-quasiparticle Excitations in ^(145)Tb

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2003年第1期 46-46页

作者： ZhengYong ZhouXiaohong ZhangYuhu T.Hayakawa M.Oshima T.Toh T.Shizuma J.katakura Y.Hatsukawa M.Matsuda H.kusakari M.Sugawara k.furuno T.komatsubara 不详 JapanAtomicEncrgTResearchInstitute TokaiIbarakl319-1195Japan. ChibaUniversity Inage-kuChiba263-8512Japan. ChibaInstituteofTechnology NarashinoChiba275-0023Japan. InstituteofPhysicsandTandemAcceleratorCenter UniversityofTsukubaJapan.

Study of in-beam γ-ray spectroscopy of ^145Tb has been carried out by using ^118Sn (32 S, 1p4n) ^145Tb reaction. Excitation functions, X-γ-t and γ-γ-t coincidences and γ-ray anisotropies were measured. Here, t refers to the relative time difference between any two coincident γ-rays detected within ±200 ns. A level scheme of ^14tTb, including 81 γ-transitions as shown in Fig.l, has been established up to 7.4 MeV in excitation energy and spinparity assignments for most of the observed levels have been done. The level structure shows characteristics of spherical nucleus. The observed states with excitation energies less than 2 MeV are interpreted by coupling an h11/2 proton to the 2^+, 4^+ and 3^- core excitations in ^144Gd. The excitation energies of these states fit wellin to the systematics of the neighboring odd-A N=80 isotones, and are well reproduced by the quasiparticle-cluster interaction calculations[1]. Semi-empirical shell model calculations[2] have been done for the higher-lying levels. The results clearly reveal the characteristic features of multiparticle configurations in a spherical nucleus. Specific configurations are proposed for the yrast and some non-yrast levels.

关键词：多重准粒子激发函数铽核子 X-射线光谱学各向异性

Observation of Rotational Bands in Odd-odd ^(172)Re

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2002年第1期 33-33页

作者： H.kusakari T.komatsubaza k.furuno ZhangYuhu M.Oshima Y.Toh ZhouXiaohong M.koisumi A.Osa A.kimura： Y.Hatsukawa T.Morikawa M.Nakamura M.Sugawara 不详 JapanAtomicEnergyResearchInstitute TokaiIbaraki319-1195Japan. DepartmentofPhysics KyudmUniversltyFukuoka812-81Japan. ChlbaInstituteofTechnology NarashinoChiba275-0023Japan. ChibaUniversity Inage-kuChiba263-8512Japan. InstituteofPhysicsAndTandentAcceleratorCenter UniversityofTsukubaIbazaki305-0006Japan.

关键词：铼核转动带结构双奇核实验观测高旋态 γ射线阵检测器原子核物理学

Semi-decoupled Bands in Odd-Odd 182Au

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IMP & HIRFL Annual Report 2001年 43-43页

作者： T.Hayakawa,M.Oshima,T.Toh,T.Shizuma,J.katakura,Y.Hatsukawa,M.Matsuda,H.kusakari,M.Sugawara,k.furuno,T.komatsubara,T.Une Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Japan Atomic Energy Research Instirute Tokai Ibaraki 319-1195 Japan. Chiba University Inage-ku Chiba 263-8512 Japan. Chiba Institute of Technology Narashino Chiba 275-0023 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. Institute of Physics and Tandem Accelerator Center University of Tsukuba Ibaraki305-0006 Japan.

High-spin states of odd-odd182Au has been studied for the first time,by USing152Sm(35Cl,5n)182Au reaction at 183MeV beam ***35Cl beam was provided by the JAERI（Japan Atomic Energy Research Institute）tandem *** targe...

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Semi-decoupled Bands in Odd-Odd ^(182)Au

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IMP & HIRFL Annual Report 2001年第1期 43-43页

作者： T.Hayakawa M.Oshima T.Toh T.Shizuma J.katakura Y.Hatsukawa M.Matsuda H.kusakari M.Sugawara k.furuno T.komatsubara T.Une Japan Atomic Energy Research Instirute TokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstiruteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstiruteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstiruteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstiruteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstiruteTokaiIbaraki 319-1195Japan.Japan Atomic Energy Research InstiruteTokaiIbaraki 319-1195Japan.Chiba UniversityInage-kuChiba 263-8512Japan.Chiba Institute of TechnologyNarashinoChiba 275-0023Japan.Institute of Physics and Tandem Accelerator CenterUniversity of TsukubaIbaraki305-0006Japan.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^(182)Au has been studied for the first time,by USing^(152)Sm(^(35)Cl,5n)^(182)Au reaction at 183MeV beam ***^(35)Cl beam was provided by the JAERI(Japan Atomic Energy Research Institute)tan... 详细信息

关键词： accelerator enriched metallic bands Atomic tandem nuclei nucleus isotopes coincidence