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 带交叉
 band crossing
 Both signature components of the πh-11/2 negative-parity band and a band crossing at ω≈0 40MeV were observed. 在ω≈ 0 .4 0MeV附近 ,观测到基于πh11 2 质子轨道上的负宇称带的带交叉 . 短句来源 The increasing of B(M1)/B(E2) occurring at large frequency approaching the second BC crossing can be understood as mainly resulted from the mixing of wave function with the 4 quasiparticle band caused by the band crossing. B(M1)/B(E2)比值在接近第二带交叉(即BC准中子对顺排)的较高频率处的增强效果,可以理解为主要来源于带交叉引起的波函数中混合四准粒子成分的结果。 短句来源 Most superdeformed bands are located at the strong-coupling orbits, such as neutron [512]5/2, [624)9/2. A few superdeformed bands lie on high j orbits, i.e., neutron [761]3/2, [752]5/2. Our calculated configuration assignments give a satisfactorily explanation to the general behavior, the anomalous change and the band crossing of superdeformed bands in the A ~ 190 mass region. 绝大多数超形变带都建立在强耦合轨道上,例如中子[512]5/2,[624]9/2.少数超形变带则建立在高j闯入轨道上,即中子[761]3/2,[752]5/2.根据我们提出的组态结构所进行的理论计算结果表明,A-190区所有转动带的一般行为、反常变化和带交叉都得到了满意的解释. 短句来源 Anomalous phenomena of the transition probabilities in ~(161)Lu are investigated. The observed drastic increase in the magnitude of the B(M1)/B(E2) after band crossing is a result of nuclear shape change, both in the β deformation and in the γ deformation. 本文研究了~(161)Lu电磁跃迁几率的反常现象,指出B(M1)/B(E2)带交叉以后区域的剧烈增加是β形变和γ形变共同变化的结果。 短句来源 The work done in recent years on HI 13 tandem accelerator in China Institute of Atomic Energy(CIAE), including anomalous band crossing in odd proton nuclei and superdeformed triaxial band in rare earth rigion, nuclear structure in mass A ≈80 and A ≈130 nuclei and measurement of lifetime of high spin states, are briefly introduced. 概述在HI－13 串列加速器上进行原子核高自旋态研究的几个重要工作，包括稀土区奇质子核带交叉反常现象研究及三轴超形变寻找、中重核区和A≈130 区核结构研究、原子核高自旋能级寿命测量。 短句来源 更多
 band-crossing
 ROTATIONAL EFFECT ON ELECTROMAGNETIC TRANSITIONS AFTER BAND-CROSSING 转动对电磁跃迁的影响——带交叉以后的区域 短句来源 The signature-dependence of B(M1)-values and dynamical quadrupole moments Q~(1) and Q~(2) after the band-crossing are investigated by meams of the extended particle-rotor model. The calculated values are in qualitative agreement with the measured data. It was noted that in ~(159)Tm the γ-value is quite different before and after the band-crossing. 利用推广的粒子-转子模型研究了~(159)Tm负宇称Yrast态在带交叉以后区域的B(M1)值以及动力学电四极矩Q~(1)和Q~(2),并同实验进行了比较,得到了较好的符合,指出二级柯里奥利作用对分析实验数据的重要性. 短句来源 Using the particle-number-conserving method,the energies of the bands,the band-crossing frequency,the band interaction strength,the aligned angular momentum and the seniority structure of the CSM wave functions of 182Os have been calculated in the cranked shell model(CSM). In the present calculation,coriolis attenuation has been considered. The result shows that the values of Calculation colucides with the experiments fairly good. 利用推转壳模型的粒子数守恒方法计算了182Os核能谱、带交叉频率、带间相互作用强度、顺排角动量等，并对182Os核波函数的seniority结构进行了分析．在计算过程中，根据不同的阻塞情况适当考虑了Coriolis减弱．结果表明，以上各种量的计算值与对应的实验值都能较好地符合． 短句来源 Using Particle-Rotor Model, the energy spectra and electromagnetic transitions ofthe negative-parity yrast states, before and after the band-crossing in odd-A Lu isotopes, areinvestigated and compared with the experimental data. It is noted that before and after theband-crossing the moment of inertia of the core is a smooth function of the total angular mo- mentum I and can be described by the ah formula; 利用粒子一转子模型研究了奇A Lu核负宇称Yrast态带交叉前后的能谱和跃迁几率，理论值和实验值符合得较好．研究表明，~(161，163，165，167)Lu负宇称Yrast态是三轴形变的； 短句来源 Using a simplified model dealing with s-band configuration, the calculated energy spectrum and the B(M1)/B(E2) ratio are compared with experimental data for the negative-parity yrast band in 167Lu before and after the band-crossing. 应用粒子-转子模型研究了~(167)Lu负宇称Yrast态带交叉前后的能谱和跃迁几率,并同实验值进行了比较,符合较好. 短句来源
 “带交叉”译为未确定词的双语例句
 Coriolis Attenuation Effect on the Bandcrossing Frequency of ~(164)Er_(96) 关于Coriolis减弱对~(164)Er_(96)带交叉频率影响的讨论 短句来源 Effect of Residual p-n Interaction on Crossing Frequency Delay of 1/2 ~-[541] Band p-n相互作用对1/2~-[541]带带交叉频率延迟的影响 短句来源 Effect of Residual p-n Interaction on Crossing Frequency Delay of 1/2~- [541] Band p-n相互作用对1／2~-[541]带带交叉频率延迟的影响 Bandcrossing of K = 1/2 Bands in Odd - Proton Nuclei 奇质子核K＝1／2带的带交叉 短句来源 Band Crossings and Shape Changes in the K=Band in 79Kr ~(79)Kr中K~π=5~-/2转动带的带交叉及其形状演化 短句来源 更多

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 band crossing
 The dynamical wavelet spectrum of the profile variations reveals large-scale components in the interval 25-50 km/s that move within the-V sin i to V sin i band for the primary star of the system, Aa1, with a band crossing time of 4h-5h. Band crossing and hybridization effects on superconductivity are investigated within a weak coupling limit of an extended BCS theory. Shape changes previously suggested to appear in the ground-state band (gsb) of 156Dy and in the s-band above the first band crossing were not supported by the transition probabilities determined in this work. In 160Ho, the band crossing in the $\pi$7/2-[523] $\otimes$$\nu$11/2-[505] band has been observed for the first time. The results in the backbending region are qualitatively discussed in terms of the two-band crossing model. 更多
 band-crossing
 The band-crossing frequencies are found to depend on the number of spectator particles. The other band, based on πh11/2 ? υg7/2 configuration, is decoupled in nature and shows a band-crossing at ?ω=0.39 MeV due to alignment of an h11/2 quasineutron pair. The results are consistent with the band-crossing mechanism wherein the aT and eT bands cross as thecH/aH ratio increases.
 The energy levels, B(E2) values and gyromagnetic ratio g of some even-even nuclei have been calculated with a double band scheme of band-crossing. Based on these results, the mechanism of backbending phenomena is analyzed, and the possible criterion to distinguish the effects of shape transition, rotation-alignment and pairing collapse are also discussed. 本文利用一种带交叉的双带图象,计算了某些偶偶核高自旋态的能谱、B(E2)值和迴磁比因子g.据此对它们的回弯现象的机理进行了分析,并讨论了区分形状相变、转动排列和对崩溃效应的可能的判据. In this paper a three bands intersection model describing the high spin states ofeven-even nuclei have been proposed. This model has the ability to explain the back-bending behaviour in the plot of the moments of inertia versus the rotational angularvelocity, i.e. ■-ω~2 curve, of some even-even nuclei. 本文提出了一个描述偶偶核高自旋态的三带交叉模型。这个模型能够解释某些偶偶核的转动惯量与转动角速度关系(即是■-ω~2图)中的回弯现象。 The interaction of the rotational three-band, the superband, the g band and theβ band (or γ band), for even-even Nuclei is discussed. The Hamiltonian matrix is diagonalized after solving the secular equation bywhich the parameters in the matrix elemen s are determined. The three-band spectrafor more than ten nuclei have been calculated. The calculated results are found to bein resonable agreement with experimental data, and some informations of three-bandmixing are obtained. 本文探讨了希土区偶偶核的超带与基态带、β带或γ带的交叉混杂。我们用“定本征值问题中待定参数”的方法定出参数后使哈密顿矩阵对角化,计算了十多个核的转动三带能谱,与现有实验值符合较好,给出了超带等三个转动带交叉混杂的一些信息。 << 更多相关文摘
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