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| 1 | 双奇核中πi_(13/2)νi_(13/2)2-准粒子转动带旋称反转研究显示文摘利用重离子熔合蒸发反应和在束γ谱学实验方法研究了双奇核176,178Ir和182 Au的高自旋态结构 ,在这 3个双奇核中观测到了基于πi13 2 νi13 2 准粒子组态下的转动带 .以能级间隔系统学为判据 ,对184Au核中πi13 2 νi13 2 转动带能级自旋进行了指定 .指出176,178Ir和182 ,184Au 4个双奇核的πi13 2 νi13 2 转动带在低自旋区均出现旋称反转 .对πi13 2 νi13 2 转动带旋称反转现象进行了定性的讨论 .用推转壳模型对πh9 2 νi13 2 带和πi13 2 νi13 2 带能级结构进行了理论研究 ,发现当采用形变和对力自洽计算后 。 | 张玉虎 M.Oshima T.Morikawa T.Hayakawa Y.Toh 周小红 何建军 刘忠 甘再国 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 温书贤 竺礼华 王治民 许甫荣 | 2003 | 高能物理与核物理2003,27,4: | 3 |
| 2 | 双奇核^(182)Au高自旋态能级结构及旋称反转显示文摘利用^(152)Sm(^(35)Cl,5nγ)^(182)Au核反应产生并研究了双奇核^(182)Au的高自旋态,首次建立了双奇核^(182)Au基于πh_(9/2)(×)Vi(13/2)和πi_(13/2)(×)Vi_(13/2)准粒子组态上的转动带能级纲图,发现在低自旋区,两个转动带能级均出现旋称反转.用推转壳模型对^(182)Au的转动带能级进行了理论研究,发现当采用形变和对力自洽计算后,从理论上可以定性地解释^(182)Au核中两个转动带出现的旋称反转现象。 | 张玉虎 许甫荣 何建军 刘忠 周小红 甘再国 M.Oshima T.Hayakawa Y.Toh T.Shizuma J.Katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara K.Furuno T.Komatsubara T.Une 温书贤 王治民 | 2003 | 中国科学(G辑)2003,33,1: | 3 |
| 3 | 形变双奇核^(178)Ir转动带能级的旋称反转显示文摘利用152Sm(31P,5nγ)178Ir反应产生并研究了双奇核178Ir的高自旋态.实验中进行了178Ir核的在束 γ测量,包括γ射线的激发函数测量、X-γ和γ-γ符合测量.首次建立了双奇核178Ir基于πh9/2νi13/2和πh11/2νi13/2准粒子组态上的转动带能级纲图.发现在低自旋区,两个转动带能级均出现旋称反转.对此核区半退耦带的旋称反转作了简要的分析和讨论. | 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 | 2000 | 高能物理与核物理2000,24,12: | 2 |
| 4 | Search for Signature Inversion in the πi_(13/2) vi_(13/2) Band in Odd-Odd ^(178I)r显示文摘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. | 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 | 2001 | Chinese Physics Letters2001,18,10: | 1 |
| 5 | 原子核^(145)Tb的多准粒子激发态显示文摘利用能量为165 MeV的32S束流, 通过反应118Sn(32S, 1p4n)布居了145Tb的高自旋态. 基于标准在束核谱学实验测量结果, 首次建立了激发能高达 7.4 MeV的145Tb能级纲图. 145Tb的能级结构具有球形原子核的特征, 其高自旋态是由单粒子激发形成的. 根据邻近N = 80同中子素核结构的系统性, 采用一个11/2h价质子与偶偶核芯144Gd的弱耦合很好地解释了145Tb激发能在2 MeV以下的能级结构. 利用多准粒子壳模型组态解释了激发能在2 MeV以上的晕态和部分近晕态能级. | 郑勇 周小红 张玉虎 柳敏良 郭应祥 雷相国 T.Hayakawa M.Oshima T.Toh T.Shizuma J.Katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara | 2004 | 中国科学(G辑)2004,34,3: | 1 |
| 6 | ^(179)Au的1/2[660](πi_(13/2))转动带显示文摘利用能量为 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 ) | 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 | 2004 | 高能物理与核物理2004,28,2: | 0 |
| 7 | ^(176,178)Os新低位激发态的识别显示文摘利用在束实验产生具有β+/EC衰变性质核素176,178Ir,分析了在束实验条件下获得的γ-γ符合数据,识别出了176Os的4条新能级和13条新γ跃迁、178Os的5条新能级和14条新γ跃迁。籍助氦喷嘴快速带传输系统,进一步对176Ir的β+/EC衰变进行了测量,在确认在束测量新γ射线的同时建议了176Ir的一个低自旋同核异能态。通过两准粒子耦合的半经验计算,建议了176,178Ir基态及同核异能态的组态。 | 王华磊 张玉虎 周小红 郭应祥 雷祥国 徐树威 谢元祥 郑勇 柳敏良 邢烨炳 谢成营 宋立涛 郭文涛 T.Hayakawa M.Oshima Y.Toh J.Katakura Y.Hatssukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.Sugawara T.Komatsubara | 2006 | 原子核物理评论2006,23,1: | 0 |
| 8 | Identification of a New Four-Quasiparticle State in Odd-Odd 186Au显示文摘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 reaction.The 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 configuration.The 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. | 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 | 2012 | Chinese Physics Letters2012,29,2: | 0 |
| 9 | Systematic Properties of the 1/2[660]^i13/2 Bands in Odd-A Au Nuclei显示文摘A standard in-beam γ-spectroscopy experiment for^179 Au has been performed via the ^149Sm (^35Cl, 5n) reaction at beam energies of 164-180 MeV. Based on the analysis of the experimental results, a rotational band built on 1/2[660](π^i13/2)proton intruder orbital is established for^179 Au for the first time. Systematic properties of the 1/2[660](π^i13/2) band in odd-A Au nuclei are discussed,and the evolution of bandhead energy and deformation with changing neutron number are revealed. | SONGLi-Tao ZHOUXiao-Hong ZHANGYu-Hu GUOYing-Xiang SUNZhi-Yu M.Oshima T.Toh A.Osa M.Koizumi J.Katakura Y.Hatsukawa M.Matsuda M.Sugawara | 2004 | Chinese Physics Letters2004,21,7: | 0 |
| 10 | Study of Level Structure in ^(146)Tb显示文摘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 | XieChengying ZhouXiaohong ZhengYong ZhangYuhu LiuZhong T.Hayakawa M.Oshima T.Toh T.Shizuma J.Katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara | 2002 | 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,,1: | 0 |
| 11 | Interpretation of Yrast Levels in ^(145)Tb显示文摘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- | ZhangYuhu LiuMinliang T.Hayalmwa M.Oshima T.Toh T.Shizuma J.Katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara ZhengYong~ ZhouXiaohong | 2002 | 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,,1: | 0 |
| 12 | ^(145)Tb的高自旋态能级纲图显示文摘利用能量为 1 61— 1 75MeV的32 S束流 ,通过反应118Sn( 32 S ,1p4n)产生了145 Tb的高自旋态 .进行了γ射线的激发函数、γ γ t符合测量 .首先建议了由 2 4条能级和 4 2条γ跃迁组成的145 Tb核的能级纲图 ,并指定了各条能级的自旋值及部分低位能级的宇称 .用一个πh11/ 2 价质子与144 Gd核芯激发态的耦合定性地解释了145 | 郑勇 周小红 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 | 2002 | 高能物理与核物理2002,26,4: | 0 |
| 13 | Doubly Decoupled Structure in Odd-Odd ^(178-186)Ir Nuclei显示文摘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 isotopes.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 revealed.This particular phenomenon may be associated with bandmixing at lower excitation energies. | 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 | 2001 | Chinese Physics Letters2001,18,1: | 0 |
| 14 | Systematic Behaviors of Signature Inversion in πh_(9/2) vi_(13/2) Bands in A~170 Mass Region显示文摘Low-spin signature inversion in the πh9/2[?]vi_(13)/2 band was reported for the first time by Bark et al.~[1]in ^(162,164)Tm and ^(174)Ta in 1997.Since then,this inversion phenomenon has been found in several neighboring odd-odd nuclei.During the past few years,we have made great efforts to investigate the band structures | M.Oshima T.Morikawa 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 | 2001 | IMP & HIRFL Annual Report2001,,1: | 0 |
| 15 | Low-spin Signature Inversion in πi_(13/2) vi_(13/2) Bands of Odd-odd ^(176,178)Ir and ^(182,184)Au Nuclei显示文摘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 interests.Up to date,the signature inversion has been systematically observed throughout the chart of nuclides in the πg9/2[?]vg9/2,πh_(11)/2, | M.Oshima T.Morikawa 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 | 2001 | IMP & HIRFL Annual Report2001,,1: | 0 |
| 16 | Rotational Band Structures in Odd-Odd ^(178)Ir显示文摘High-spin states of odd-odd^(178)Ir has been studied by using^(152)Sm(^(31)P,5n)^(178)Ir reaction.The^(31)P bcam was provided by the JAERI(Japan Atomic Enetgy Research Institute)tandem acceelerator.The target is an enriched^(152)Sm metallic foil of 1 mg/cm^2 thickness with 5 mg/cm^2 Au backing.The excitation function was measured by using^(31)P beam from 150 to 170 MeV with 5 MeV energy steps.The bearn energy of 160 | T.Hayakawa M.Oshima Y.Toh J.Katakura Y.Hatsukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.Sugawara T.Komatsubara K.Furuno | 2001 | IMP & HIRFL Annual Report2001,,1: | 0 |
| 17 | Semi-decoupled Bands in Odd-Odd ^(182)Au显示文摘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 energy.The^(35)Cl beam was provided by the JAERI(Japan Atomic Energy Research Institute)tandem accelerator.The target is an enriched^(152)Sm metallic fon of 1 mg/cm^2 thickhess with 5 mg/cm^2 | T.Hayakawa M.Oshima T.Toh T.Shizuma J.Katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara K.Furuno T.Komatsubara T.Une | 2001 | IMP & HIRFL Annual Report2001,,1: | 0 |
| 18 | 形变双奇核^(180)Ir的高自旋态实验研究显示文摘利用15 4 Sm( 31P ,5nγ) 180 Ir反应产生并研究了双奇核180 Ir的高自旋态 .实验中进行了180 Ir核的在束γ测量 ,包括γ射线的激发函数测量、X γ和γ γ符合测量 ,首次建立了双奇核180 Ir由 5个转动带构成的能级纲图 .依据从实验数据中提取出的带内B(M1 ) /B(E2 )值与理论计算值的比较 ,以及相邻双奇核的带结构特征 ,给出了转动带的准粒子组态 .在推转壳模型的理论框架中 。 | 张玉虎 T.Hayakawa M.Oshima J.Katakura Y.Hatsukawa M.Matsuda H.Kusakari M.Sugawara T.Komatsubara K.Furuno | 2002 | 高能物理与核物理2002,26,6: | 0 |
| 19 | ^(179)Pt转动带性质的研究显示文摘利用能量为 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 . | 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 | 2004 | 高能物理与核物理2004,28,6: | 0 |
| 20 | Multi-quasiparticle Excitations in ^(145)Tb显示文摘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. | 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 | 2003 | 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,,1: | 0 |