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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： ZHANG Yu-Hu 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

Structure of the πg7／2[404]7／2^＋ Band in Odd Proton Nucleus ^123I

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Chinese Physics Letters 2004年第6期21卷 1024-1026页

作者： WANGShou-Yu MAYing-Jun T.komatsubara LIUYun-Zuo ZHANGYu-Hu k.furuno T.Hayakawa J.Mukai Y.Iwata T.Morikawa G.B.Hagemann G.Sletten J.Nyberg D.Jerrestam H.J.Jensen J.Espino J.Gascon N.Gjφrup B.Cederwall P.O.Tjφm DepartmentofPhysics JilinUniversityChangchun130023 InstituteofPhysicsandTandemAcceleratorCenter UniversityofTsukubaIbaraki305Japan InstituteofModernPhysics ChineseAcademyofSciencesLanzhou730000 DepartmentofPhysics FacultyofScienceHiroshimaUniversityHiroshima724Japan DepartmentofPhysics FacultyofScienceKyushuUniversityFukuoka812Japan NielsBohrInstitute TandemAcceleratorLaboratoryRisφDK-4000RoskildeDenmark ManneSiegbabnInstituteofPhysics S-10405StockholmSweden DepartmentofPhysics UniversityofOsloNorway

High spin states of the odd proton nucleus 123I have been populated in the reaction 116Cd(14N, 5n2p) at a beam energy of 65MeV. Two previously known positive-parity ΔI = 2 sequences have been extended up to 31/2+ and 41/2+. In addition, a number of ΔI = 1 transitions linking the two ΔI = 2 sequences have been observed. It is suggested that both the ΔI = 2 sequences are built upon the oblate πg7/2[404]7/2+ Nilsson configuration.

关键词： SHAPE COEXISTENCE SPECTROSCOPY I-119

^(125)Sb高自旋态:粒子-核芯激发耦合

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中国科学（G辑） 2003年第1期33卷 27-33页

作者：刘忠张玉虎马英君 Y.Sasaki k.Yamada H.Oshima H.Yokose M.Ishizuka T.komatsubara k.furuno 中国科学院近代物理研究所兰州730000 Institute of Physics and Tandem Accelerator Center University of TsukubaIbaraki 305-0006Japan

利用在束γ谱学方法,通过^(124)Sn(~7Li,α2n)反应研究了^(125)Sb的激发态,首次建立了^(125)Sb的高自旋能级纲图,其中包括21条新γ跃迁和14个新能级。发现1970,2110和2470 keV3个能级为同质异能态,基于延迟符合测量确定了它们的寿命范围... 详细信息

利用在束γ谱学方法,通过^(124)Sn(~7Li,α2n)反应研究了^(125)Sb的激发态,首次建立了^(125)Sb的高自旋能级纲图,其中包括21条新γ跃迁和14个新能级。发现1970,2110和2470 keV3个能级为同质异能态,基于延迟符合测量确定了它们的寿命范围,并确定其自旋、宇称分别为15/2^-,19/2^-和23/2^+。根据粒子-核芯耦合图像和经验壳模型计算解释了^(125)Sb的能级结构,3个同质异能态的组态分别被指定为πg_(7/2)(×)V(h_(11/2)s_(1/2))_(5^-),πg_(7/2)(×)V(h_(11/2)d_(3/2))_(7^-)和πg_(7/2)(×)V(h_(11/2)~2)_(10^+),

关键词： ^125Sb 高自旋态激发耦合在束γ谱学同质异能态粒子-核芯耦合能级纲图锑125

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^(134)Ba能级结构的在束γ谱学研究

高能物理与核物理 2004年第3期28卷 268-273页

作者：骆鹏柳敏良刘忠张玉虎周小红郭应祥马英君 Y.Sasaki k.Yamada H.Ohshima S.Yokose M.Ishizuka T.komatsubara k.furuno 中国科学院近代物理研究所吉林大学长春130012 Institute of Physics and Tandem Accelerator Center University of Tsukuba

利用在束γ谱学技术 ,通过 12 8Te(10 B ,1p3n) 13 4 Ba反应研究了 13 4 Ba的中、高自旋激发态 .实验中采用 9套BGO(AC)HPGe探测器进行了γ γ t符合测量 .基于γ γ符合关系、γ射线的相对强度和各向异性度的测量结果建立了 13 4 Ba的... 详细信息

利用在束γ谱学技术 ,通过 12 8Te(10 B ,1p3n) 13 4 Ba反应研究了 13 4 Ba的中、高自旋激发态 .实验中采用 9套BGO(AC)HPGe探测器进行了γ γ t符合测量 .基于γ γ符合关系、γ射线的相对强度和各向异性度的测量结果建立了 13 4 Ba的能级纲图 .比较N =78的同中子素链的负宇称能级结构的系统性 ,发现激发能位于 4 14 2keV ,Jπ 值为 11-的能级很可能是与 13

关键词：各向异性度能级纲图钡能级结构束γ谱学自旋激发态 γ-γ-t符合测量高能物理实验

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Experimental Study of High-Spin States in Odd-Odd 172Re

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Experimental Study of High-Spin States in Odd-Odd 172Re

Rotational Band Structures in Odd-Odd 178Ir

第十二届全国核物理大会暨第七届会员代表大会

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 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

High-spin states in the odd-odd Re have been investigated via the Sm(Al,4n)Re reaction through excitation functions, x-γand γ-γcoincidence measurements. A level scheme consisting of three rotational bands have been identified for the first time extending the high-spin studies of A～160 odd-odd nuclei to the currently lightest rhenium isotope. The three bands have

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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-odd178Ir has been studied by using152Sm(31P,5n)178Ir ***31P bcam was provided by the JAERI（Japan Atomic Enetgy Research Institute）tandem *** target is an enriched152Sm metallic foil of 1 mg/cm2thickness with 5 mg/cm2Au *** excitation function was measured by using31P beam from 150 to 170 MeV with 5 MeV energy *** bearn energy of 160 MeV

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123I的高自旋态能级结构

123I的高自旋态能级结构

第十二届全国核物理大会暨第七届会员代表大会

作者：王守宇马英君 T.komatsubara 刘运祚张玉虎 k.furuno G.BHagcmann 吉林大学物理学院 Tandem AcceIerator Center University of TsukubaIbaraki 305Japan 中国科学院近代物理研究所 Tandem Accelerator Center University of TsukubaIbaraki 305Japan Niels Bohr Institute Denmark

奇质子的碘核具有γ软形变,展现了一系列独特的高自旋态现象,如形状共存,πh组态带的带终结和带交叉反常延迟等。一直是核结构研究的热点之一。本次工作利用Cd(N,5n2p)I反应布居了I的高自旋态能级结构,实验是在玻尔所完成的,共建立了五...

奇质子的碘核具有γ软形变,展现了一系列独特的高自旋态现象,如形状共存,πh组态带的带终结和带交叉反常延迟等。一直是核结构研究的热点之一。本次工作利用Cd(N,5n2p)I反应布居了I的高自旋态能级结构,实验是在玻尔所完成的,共建立了五条转动带。其中将基于πg空穴态的正宇称能级推高到25/2,并在两条之前被指定为πd和πg组态[1]的退耦合带中观测到了多条强的带间跃迁,建

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127Ⅰ中集体和非集体激发的共存（英文）

IMP & HIRFL Annual Report 2010年 47-48页

作者：丁兵 Y.Sasakiz k.Yamada H.Ohshima S.Yokose M.Ishizuka T.komatsubara k.furuno Institute of Physics and Tandem Accelerator Center University of Tsukuba

We established and reported partial level scheme of the nucleus 127I[1]. From detailed analysis on the γ-γ coincidence relationships,γ-ray relative intensities and ADO ratios,an extended level scheme for this nucleus has been proposed and presented in Fig.1, from which one can see that the level structure, built on the 15/2+ state and denoted by "D", displays irregular level spacings and many parallel decay branches,indicating that the excited states are

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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： Zhang Yulu 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 Chiba University Inage-kuChiba 263-8512Japan Institute of Physics and Tandem Accelerator Center University 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 metalli...

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