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| 1 | 丰中子核^(145,147)La的八极形变显示文摘通过对 2 5 2 Cf自发裂变产生的瞬发γ谱的实验研究 ,建立与扩展了丰中子核145 ,147 La的高自旋态能级图 ,最高自旋态达到 ( 4 1 / 2 + )与 ( 4 3/ 2 - ) .测得的交叉相联的相反宇称带及带间的强化E1跃迁说明在 145 ,147 La中形成强的八极形变 .对145 La的研究表明 ,具有轴对称形状的四极形变与具有反演不对称形状的八极形变在同一核中产生共存与竞争 .在πh11/ 2 带中观测到的带交叉位于 ω≈ 0 2 6— 0 30MeV附近 ,由推转壳模型计算表明 ,它是由一对i13/ 2 | 朱胜江 王牧歌 朱凌燕 李明 甘翠云 杨利明 萨哈伊 朴秀日 邓景康 龙桂鲁 J.H.Hamilton A.V.Ramayya B.R.S.Babu J.K.Hwang W.C.Ma J.Komicki J.D.Cole R.Aryaeinejad M.W.Drigert J.O.Rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee Yu.Ts.Oganes | 2000 | 高能物理与核物理2000，24，5： | 1 |
| 2 | Collective Band Structures in the Neutron-Rich ^(107,109)Ru Nuclei显示文摘The levels in neutron-rich odd-A ^(107,109)Ru nuclei have been investigated by using γ -γ -and γ -γ -γ-coincidence studies of the prompt γ-rays from the spontaneous fission of 252Cf. The ground state bands and the negative parity bands are identified and expanded in both nuclei. Triaxial rotor plus particle model calculations indicate the ground state bands originate from v(d_(5/2)+g_(7/2)) quasiparticle configurations and the negative parity bands are from vh_(11/2) orbital. | 朱胜江 甘翠云 J.H.Hamilton A.V.Ramayya B.R.S.Babu 萨哈伊 W.C.Ma 龙桂鲁 邓景康 朱凌燕 李明 杨利明 J.Komicki J.D.Cole R.Aryaeinejad Y.K.Dardenne M.W.Drigert J.O.Rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee N.R.Johnson F.K.McGowan | 1998 | Chinese Physics Letters1998，15，11： | 1 |
| 3 | Reflection Asymmetric Shapes in the Neutron-Rich ^(140,143)Ba Isotopes显示文摘Level schemes for the neutron-rich ^(140,143)Ba nuclei have been determined by study of promptγ-rays in spontaneous fission of ^(252)Cf.The level pattern and enhanced E1 transitions betweenπ=+andπ=-bands show reflection asymmetric shapes with simplex quantum number s=+1 in ^(140)Ba and s=±i in ^(143)Ba,respectively.The octupole deformation stability with spin variation has been discussed. | 朱胜江 王牧歌 J.H.Hamilton A.V.Ramayya B.R.S.Babu W.C.Ma 龙桂鲁 邓景康 朱凌燕 李明 T.N.Ginter J.Komicki J.D.Cole R.Aryaeinejadv Y.K.Dardenne M.W.Drigert J.O.Rasmussen Yu.Ts.Oganessian M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee N.R.Johnson F.K.McGowan | 1997 | Chinese Physics Letters1997，14，8： | 0 |
| 4 | Octupole Deformation and Signature Inversion in ^(145)Ba显示文摘High spin states in neutron-rich odd-N ^(145)Ba nucleus have been investigated from study of promptγ-rays in spontaneous fission of^(252)Cf.The alternating parity bands are identified indicating octupole deformation with simplex quantum number s=-i.The ground state band shows signature splitting and inversion at low spin.These collective band structures exhibit the competition and co-existence between symmetric and asymmetric shapes. | 朱胜江 萨哈伊 J.H.Hamilton A.V.Ramayya 甘翠云 朱凌燕 杨利明 龙桂鲁 朴秀日 B.R.S.Babu J.K.Hwang W.C.Ma J.Komicki X.Q.Zhang E.F.Jones J.D.Cole R.Aryaeinejad M.W.Drigert J.O.Rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee Yu.Ts.Oganessian M.Ter-Akopian A.V.Daniel | 1999 | Chinese Physics Letters1999，16，10： | 0 |
| 5 | Octupole Deformation Bands of πh_(11/2) in Neutron-Rich 145,147La Nuclei显示文摘Octupole deformation bands built onπh ll/2 orbital in neutron-rich odd-Z 145,147La nuclei have been investigated by measuring the promptγ-rays emitted from the 252Cf source.The alternating parity band structures and strong E1 transitions observed between negative-and positive-parity bands in both nuclei indicate the octupole deformation enhanced by the h ll/2 single proton coupling.According to observed energy displacements the octupole deformation becomes stable at the intermediate spin states. | 朱胜江 王牧歌 J.H.Hamilton A.V.Ramayya B.R.S.Babu W.C.Ma 龙桂鲁 朱凌燕 李明 萨哈伊 甘翠云 杨利明 J.Komicki J.D.Cole R.Aryaeinejad M.W.Drigert J.O.Rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee Yu.Ts.Oganessian G.M.Ter-Akopian A.V.Daniel | 1999 | Chinese Physics Letters1999，16，3： | 0 |
| 6 | Collective Bands in Neutron-Rich ^(104)Mo Nucleus显示文摘Levels in the neutron-rich ^(104)Mo nucleus have been investigated by observing promptγ-rays from the spontaneous fission of 252Cf with the Gammasphere detector array.The ground-state band,the one-phonon and the two-phononγ-vibrational bands as well as a quasiparticle band have been confirmed and expanded with spin up to 14ħ.Other two side bands probably built on new quasiparticle states are identified.The possible configurations for the quasiparticle bands are discussed.Two of the quasiparticle bands show larger moments of inertia and may have pair-free characteristics.The levels of the ground-state band,the one-phononγ-band and the two-phononγ-band calculated from a general collective model are in close agreement with the experimental data. | 杨利明 朱胜江 李科 J.H.Hamilton A.V.Ramayya J.K.Hwang X.Q.Zhang 朱凌燕 甘翠云 萨哈伊 龙桂鲁 许瑞清 张征 姜卓 全明吉 W.C.Ma B.R.S.Babu E.F.Jones J.D.Cole R.Aryaeinejad M.W.Drigert I.Y.Lee J.O.Rasmussen M.A.Stover G.M.Ter-Akopian A.V.Daniel | 2001 | Chinese Physics Letters2001，18，1： | 0 |
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