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Systematic Behaviors of Signature Inversion in πh_(9/2) ■vi_(13/2) Bands in A~170 Mass Region

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IMP & HIRFL Annual Report 2001年第1期 38-39页

作者： Zhang yulu M.Oshima T.Morikawa Zhou Xiaohong Liu Zhong He Jianjun 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 Zhinming Xu Furong Depatment of Physics Kyushu UniversityFukuoka812-81Japan. Institute of Physics and Tandem Accelerator Center University of TsukubaIbaraki305-0006Japan. China Institute of Atomic Energy Beijing 102413 Departrment of Technical Physics Peking UniversityBejjing 100871

Low-spin signature inversion in theπh9/2■vi_(13/2)band was reported for the first time by Bark et al.~[1]in^(162,164)Tm and^(174)Ta in *** then,this inversion phenomenon has been found in several neighboring odd-odd *** the past few years,we have made great efforts to investigate the band structures in odd-odd nuclei in this mass rgion,leading to observation of signature invesion in^(170)Ta,^(172)Re,^(176~280)Ir and ^(182)Au,respectively.

关键词： nuclei signature Inversion Bands in A Mass Region vi bands isotopes inversion circles

Study of 1/2[660](πi_(13/2)) Rotation Band in ^(179)Au

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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 47-47页

作者： songLitao ZhouXiaohong Guoyingxiang SunZhiyu M.Oshima T.toh A.Osa M.Koizumi J.Katakura y.Hatsukawa M.Matsuda M.Sugawara 不详 JapanAtomicEnergyResearchInstitute TokaiIbaraki319-1195Japan. ChibaInstituteofTechnology NarashinoChiba275-0023Japan.

High-spin states in ^179Au have been studied experimentally by using the ^149Sm(^35C1, 5n) reaction at beam energies of 164,~180 MeV. The ^35C1 beam was provided by the tandem accelerator at the Japan Atomic En-ergy Research Institute (JAERI). The target is an isotopically enriched ^149Sm metallic foil of 1.5 mg/cm^2 thickness with a 5.0 mg/cm^2 Pb backing. Measurements of γ-ray excitation functions, X-γ coincidences and γ-γ-t coincidences were performed with 13 HPGe's with BGO anti-Compton shields and three LOAX detectors.

关键词：金核子转动波段告诉旋状状态二级加速器原子核物理学

Study of Level Structure in 146Tb

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IMP & HIRFL Annual Report 2002年 41页

作者： T.Hayakawa,M.Oshima,T.toh,T.Shizuma,J.Katakura,y.Hatsukawa,M.Matsuda,H.Kusakari,M.Sugawara 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 Institute of Technology Narashino Chiba 275-0023 Japan.

The level structure of doubly odd nucleus 146Tb has been studied via the 118Sn(32S, 1p 3n)146Tb reaction by using techniques of in-beam γ-iay spectroscopy. Measurements of 7-ray excitation functions, 7-ray anisotropies, X-γ and γ-γ-t coincidences were performed with 12 BGO(AC)HPGe detectors. Based on the γ-γ coincidence relationships, intensity balances and cross-over transitions, the level scheme of 146Tb has been extended up to

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Interpretation of yrast Levels in 145Tb

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IMP & HIRFL Annual Report 2002年 42页

We established the level scheme of 145Tb for the first time. The excited states below 2 MeV have been interpreted qualitatively by coupling an h11/2 valence proton to the 0+, 2+, 4+ and 3- excited states in the 144Gd core nucleus, and the yrast levels in excitation energy range from 2.1 to 3.4 MeV have been suggested from the (πh211/2d-15/2/g-17/2) proton excitations or the couplings of the h11/2 proton to the 5- and 7- yrast

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Study of Multi-particle Excitations in 146Tb

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IMP & HIRFL Annual Report 2004年 68页

作者： T. Hayakawa,M. Oshima,T. toh,T. Shizuma,J. Katakura,y. Hatsukawa,M. Matsuda,H. Kusakari,M. Sugawara 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 Institute of Technology Narashino Chiba 275-0023 Japan

Study of in-beam γ-ray spectroscopy of 146Tb has been carried out by using the 118Sn(32S,1p3n)146Tb reaction. Based on the experimental measured results, the level scheme of 146Tb has been revised significantly and extended up to an excitation energy of 8.39 MeV. Preliminary results of the present work have been reported in a letter. The level structure shows characteristics of a spherical nucleus. The odd-odd nucleus 146Tb has one proton-particle and one neutron-hole with respect to the doubly closed nucleus 146Gd, and its low-

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Interpretation of yrast Levels 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 2002年第1期 42-42页

作者： Zhangyuhu LiuMinliang T.Hayalmwa M.Oshima T.toh T.Shizuma J.Katakura y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara Zhengyong~ ZhouXiaohong 不详 JapanAtomicEnexzwResearchInstitute TokalIbaraki319-1195Japan. ChlbaUniversity Inage-kuChlba263-8512Japan. ChlbaInstituteofTechnology NarashinoChiba275-0023Japan.

关键词：铽元素晕态能级组态分析激发态激发能质子价能级分布

Multi-quasiparticle Excitations in 145Tb

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IMP & HIRFL Annual Report 2003年 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 Janan. Janan. Janan. Janan. Janan. Janan. Janan. 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.

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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Study of Level Structure in ^(146)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 2002年第1期 41-41页

作者： XieChengying ZhouXiaohong Zhengyong Zhangyuhu LiuZhong T.Hayakawa M.Oshima T.toh T.Shizuma J.Katakura y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara 不详 JapanAtomicEnergyResearchInstitute TokaiIbaraki319-1195Japan. ChibaUniversityInage-ku Chiba263-8512Japan ChibaInstituteotTechnology NarashinoChiba275-0023Japan

关键词：铽元素能级结构原子物理学激发态双奇核结构激发能

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