|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 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^(176)Ir转动带的旋称反转(英文)显示文摘利用1 4 9Sm( 31 P ,4nγ)反应 ,通过γ射线的激发函数测量、X γ和γ γ符合测量研究了双奇核1 76Ir的高自旋态 .首次建立了双奇核1 76Ir由 4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 .基于本实验建立起的带间跃迁和在I=1 8处观测到的旋称交叉 ,指出1 76Ir核基于πh9 2 νi1 3 2 和πi1 3 2 νi1 3 2 组态的两个转动带在低自旋时出现旋称反转现象 . | 张玉虎 M.Oshima Y.Toh M.Koizumi A.Osa T.Shizuma T.Hayakawa M.Sugawara H.Kusakari T.Morikawa 温书贤 竺礼华 | 2002 | 高能物理与核物理2002,26,5: | 2 |
| 3 | ^(169)Re的转动带结构研究(英文)显示文摘利用在束γ谱学方法 ,通过反应1 4 4 Sm( 2 8Si,1p3n) 1 69Re研究了1 69Re的激发态能级结构 .实验进行了X γ符合、γ γ符合、DCO系数和带内B(M1 ) B(E2 )比率测量 .基于这些测量 ,建立了组态为π9 2 - [51 4 ]的强耦合带和组态为π1 2 -[54 1 ]的退耦合带 .通过比较1 69Re的转动带与邻近奇质子核已知转动带的结构和B(M1 ) B(E2 )比率 ,指定了1 69Re转动带的组态 .实验观测到π9 2 - [51 4 ]和π1 2 - [54 1 ]转动带的中子AB带交叉的转动频率分别为 0 .2 3和 0 .2 7MeV .着重讨论了1 69Re转动带的中子AB带交叉频率、转动角动量顺排和旋称劈列等 。 | 周小红 M.Oshima Y.Toh 张玉虎 郑勇 M.Koizumi A.Osa T.Hayakawa Y.Hatsukawa T.Shizuma M.Sugawara | 2002 | 高能物理与核物理2002,26,10: | 1 |
| 4 | ^(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 |
| 5 | 双奇核^(172)Re的高自旋态显示文摘对149Sm(27Al,4n)172Re反应产生的172Re在束γ的实验数据进行了重新分析,新发现了可归属于172Re的3个转动带,由此建立了由6个转动带构成的172Re高自旋态能级纲图。依据相邻核的带结构知识和推转壳模型分析方法,对新发现的3个转动带的准粒子组态进行了指定,讨论了它们的转动特征。 | 张昕 张玉虎 周小红 郭文涛 郭松 郭应祥 M.Oshima Y.Toh M.Koizimi A.Osa A.Kimura Y.Hatsukawa T.Morikawa M.Nakamura M.Sugawara H.Kusakari T.Komatsubara K.Furuno | 2010 | 原子核物理评论2010,27,1: | 0 |
| 6 | ^(187)Pt的转动带性质研究显示文摘利用在束γ谱学技术和173Yb(18O,4n)熔合蒸发反应研究了187Pt的高自旋态能级结构.建立了包括3个转动带的187Pt高自旋态能级纲图.基于187Pt周围核结构的系统学和比较带内B(M1)/B(E2)比率的实验值和理论值,建议上述3个转动带的组态分别为11/2+[615],7/2-[503]和1/2-[521].对各转动带的带交叉频率、顺排增益、旋称劈裂等进行了讨论. | 邢烨炳 周小红 张玉虎 M.Oshima Y.Toh M.Koizumi A.Osa Y.Hatsukawa M.Sugawara | 2007 | 高能物理与核物理2007,31,3: | 0 |
| 7 | ^(80)Rb的旋称劈裂反转及负宇称带的回弯显示文摘通过熔合蒸发反应65Cu + 19F ,66Zn + 18O及68Zn + 16O ,在 3种入射束流的能量分别为 75MeV ,76MeV及 80MeV研究了80 Rb高自旋态的能级结构 .增加了 2 0多条新的γ跃迁 ,在已知负宇称转晕带上建立了两条新的边带 .将原有的第二条负宇称带的自旋态从 12 -推高到了 2 2 - ,并首次观察到这个带的回弯 ,它的回弯频率为 0 .4 9MeV ;负宇称转晕带在 15 -时出现了旋称反转 ,第二负宇称带存在明显的旋称劈裂 ,但没有观察到旋称反转 ,这两条负宇称带的结构均与其同中子数核82 | 贺创业 温书贤 竺礼华 王治民 李广生 马瑞刚 吴晓光 袁观俊 杨春祥 王月 张振龙 孟锐 陆景斌 许瑞清 肖树冬 M.Oshima Y.Toh A.Osa M.Koizumi Y.Hatsukawa M.Matsuda T.Hayakawa | 2003 | 高能物理与核物理2003,27,9: | 0 |
| 8 | 双奇核^(172)Re高自旋态转动带结构实验研究显示文摘利用重离子熔合蒸发反应 14 9Sm (2 7Al,4nγ) 172 Re布居了形变双奇核 172 Re的高自旋态 ,用 12套带有BGO反康普顿抑制的高纯锗探测器阵列进行了在束γ实验测量 ,首次建立了形变双奇核172 Re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 νi13 2 ,πh9 2 νi13 2 和π1 2 -[5 41] ν1 2 -[5 2 1].发现前两个转动带在自旋小于 18.5时其转动能级呈现反常的旋称劈裂 . | 张玉虎 M.Oshima Y.Toh 周小红 M.Koizimi A.Osa A.Kimura Y.Hatsukawa T.Morikawa M.NakamuraDepartment of Physics Kyushu University Fukuoka Japan M.SugawaraChiba Institute of Technology Narashino Chiba 275-0023 Japan H.Kusakari T.Komatsubara K.Furuno | 2003 | 高能物理与核物理2003,27,7: | 0 |
| 9 | 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 |
| 10 | High-spin states in ^(190)Pt显示文摘The level structure of ^(190)Pt has been studied experimentally using the ^(176)Yb(^(18)O,4n)reaction at beam energies of 88 and 95 MeV.γ-γ-t coincidence measurements were carried out.Based on the analysis ofγ-γcoincidence relationships,the level scheme of ^(190)pt is extended to high-spin states.A new structure built on the 3413.6 keV 14^+ state has been observed,and the vi_(13/2)^(-2) vh_(9/2)^(-1) vj(j=P_(3/2) or f_(5/2))configuration is tentatively assigned to it. | 马龙 周小红 M.Oshima Y.Toh 张玉虎 郭应祥 雷相国 M.Koizumi A.Osa T.Hayakawa Y.Hatsukawa T.Shizuma M.Sugawara | 2008 | Chinese Physics C2008,32,1: | 0 |
| 11 | 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 |
| 12 | 双奇核^(188)Au的准粒子带结构研究显示文摘利用在束γ谱学实验技术,通过173Yb(19F,4nγ)反应布居了188Au的高自旋态,并对其准粒子带结构进行了研究.基于实验测量结果,对原有的双奇核188Au能级纲图做了较大的修改.通过系统性比较,对15+以上的能级结构进行了讨论. | 方永得 张玉虎 M.Oshima Y.Toh 周小红 M.Koizumi A.Osa A.Kimura Y.Hatsukawa T.Morikawa M.Nakamura M.Sugawara H.Kusakari | 2006 | 高能物理与核物理2006,30,2: | 0 |
| 13 | Rotational Bands in ^(169)Re显示文摘High-spin states in 169Re have been investigated by means of in-beam 7-ray spectroscopy techniques with the 144Sm(28Si, 1p2n) 169Re reaction. X-γ and γ-γ-t coincidences, 7-ray anisotropies, and DCO ratios were measured. A strongly coupled band based on the 9/2-[514] Nilsson state and a decoupled band built on the h9/2 intruder proton orbital (nominally 1/2- [541]) have been established. The AB neutron crossings are observed at hω=0.23 and 0.27 MeV for the 9/2-[514] and 1/2-[541] bands, respectively. The difference between | ZhouXiaohong M.Oshima Y.Toh ZhangYuhu ZhengYong M.Koizumi A.Osa T-Hayskawa Y.Hatsukawa T.Shizuma 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 |
| 14 | Observation of Rotational Bands in Odd-odd ^(172)Re显示文摘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 | 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 | 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 |
| 15 | ^(80)Rb的高自旋态研究显示文摘在中国原子能科学研究院HI-13串列加速器和日本原子力研究所的串列加速器上。 | 贺创业 温书贤 竺礼华 王志民 李广生 马瑞刚 吴晓光 袁观俊 杨春祥 王月 张振龙 孟瑞 许瑞清 肖树冬 M.oshima Y.Toh A.Osa M.Koizumi Y.Hatsukawa M.Matsuda T.Hayakawa | 2002 | 中国原子能科学研究院年报2002,,1: | 0 |
| 16 | ^(188)Tl的πh_(9/2)vi_(13/2)扁椭球转动带的旋称反转研究显示文摘利用能量为170MeV的35Cl束流,通过157Gd(35Cl,4n)熔合蒸发反应研究了188Tl的高自旋态能级结构.依据实验结果建立了188Tl基于πh9/2(?)vi13/2组态的转动带.根据双奇Tl核能级结构的相似性,指定了188Tlπh9/2(?)vi13/2扁椭球转动带的自旋值.结果表明在188Tl中,πh9/2(?)vi13/2扁椭球转动带在低自旋区具有旋称反转性质.利用包含了质子-中子剩余相互作用的准粒子-转子模型,定性地解释了πh9/2(?)vi13/2扁椭球转动带的低自旋区旋称反转现象. | 马龙 周小红 张玉虎 郭应祥 M.Oshima Y.Toh M.Koizumi A.Osa Y.Hatsukawa M.Sugawara | 2006 | 高能物理与核物理2006,30,5: | 0 |
| 17 | 双奇核^(172)Re高自旋态实验研究显示文摘利用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探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 νi13/2,πh9/2 νi13/2和 π1/2-[541] ν1/2-[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. | 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 | 2004 | 原子核物理评论2004,21,4: | 0 |
| 18 | High Spin States in ^(80)Rb显示文摘High spin states of 80Rb were populated using fusion evaporation reactions of 65Cu+19F, 66Zn+18Oand 68Zn+16O with beam energies of 75, 76 and 80 MeV respectively at HI-13 tandem accelerator inCIAE Beijing and Tandem accelerator JAERI Japan. The γ-γ coincidence and DCO ratios were measuredby two detector arrays in CIAE and JAERI. The two arrays consist of 10 and 12 HPGe-BGO detectors.About 200×106 two fold events were accumulated. A new level scheme was constructed from the | M.Oshima Y.Toh A.Osa M.Koizumi Y.Hatsukawa M.Matsuda T.Hagakawa | 2002 | Annual Report of China Institute of Atomic Energy2002,,0: | 0 |
| 19 | 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 |
| 20 | 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 |