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超形变奇-奇核^(194)Tl中的双堵塞效应 被引量：1

Double-Blocking Effects in Odd-odd Superdeformed Nucleus^(194)Tl
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摘要 采用处理含有对力的推转壳模型的粒子数守恒方法研究了A～ 190区奇奇核194 Tl中 6条超形变带 .计算结果与实验符合得非常好 .根据我们的PNC计算结果 ,分别指定了194 Tl的 6条超形变带的组态 ,详细分析了质子和中子的堵塞效应对转动惯量的影响 .转动惯量随转动频率的变化主要来源于高N闯入壳 (对中子N =7,对质子N =6)的贡献 ,而其他大壳对转动惯量的贡献基本上不随转动频率变化 . Six superdeformed bands of odd-odd nucleus 194Tl in A～190 mass region are studied using the particle-number conserving method for treating the cranked shell model with pairing interactions. Calculated results agree with experiments very well. Based on our calculation the configurations of the six superdeformed bands are assigned and the influence of blocking effects of proton and neutron on moments of inertia is investigated in detail. The variation of moments of inertia with rotational frequency is mainly attributed to the intruder shells (neutron N=7 and proton N=6), whereas the contributions to moment of inertia from other shells remain almost unchanged with rotational frequency.
作者 贺晓涛 刘树新 于少英 赵恩广
机构地区 内蒙古民族大学理工学院 中国科学院理论物理所
出处 《高能物理与核物理》 CSCD 北大核心 2003年第2期124-126,共3页 High Energy Physics and Nuclear Physics
基金 国家自然科学基金 ( 10 14 72 0 5 19835 0 10 10 0 470 0 1) 国家重点基础研究发展规划 (G2 0 0 0 0 7740 7) 中国科学院知识创新工程重要方向性项目 (KJCX2 -SW -N0 2 )资助~~
关键词 ^194TI 铊核 奇-奇核 粒子数守恒方法 超形变 转动带 动力学 运动学 转动惯性 堵塞效应 推转壳模型 odd-odd nuclei,particle-number conserving method,superdeformed band,dynamic and kinematic moments of inertia,blocking effect
分类号 O571.1 [理学—粒子物理与原子核物理]
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参考文献9

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同被引文献9

  • 1Hammond N J,Jones G D,Butler P A,et al.Observation of K=1/2 Octupole Deformed Bands in 227Th[J].Phys Rev,2002,C65:064315.
  • 2Zashmir N,Praharaj C R.Rotational Bands of 169,171,173Lu in Deformed Hartree-Fock and Angular Momentum Projection model[J].Phys Rev,2003,C67:054318.
  • 3Song Li-tao,Zhou Xiao-hong,Zhang Yu-hu,et al.Rotational Band Built on the 1/2[660]i13/2Configuration in179Au[J].Phys Rev,2004,C69:037302.
  • 4Hoff R W,Schreckenbach K,Casten R F,et al.Nuclear Structure of 170Tm from Neutron-capture and (d,p)-reaction Measurements[J].Phys Rev,1996,C54:78.
  • 5Tord B,Ingemar R.Rotational Bands and Particle-hole Excitations at Very High Spin[J].Nul Phys,1985,A436:14.
  • 6Nilsson S G.On The Nuclear Structure and Stability of Heavy and Superheavy Elements[J].Nul Phy,1969,A131:1.
  • 7Zeng Jin-yan,Liu Shu-xin,Gong Lun-xun,et al.Blocking Effect and The Moments of Inertia of High-K Multiquasiparticle Bands in 172,173,174,175Hf[J].Phys Rev,2002,C65:044307.
  • 8Zeng Jin-yan,Liu Shu-xin,Lei Yi-an,et al.Microscopic Mechanism of Normally Deformed Identical Bands at Low Spin in the Rare-earth Nuclei[J].Phys Rev,2001,C63:024305.
  • 9刘艳鑫,于少英.奇A核^(171)Yb的[521]1/2带转动惯量随角频率的变化[J].湖州师范学院学报,2003,25(3):28-30. 被引量：2

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高能物理与核物理
2003年 第2期

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