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从价核子自由度出发构造出核跃迁电荷/电流密度算符,采用Dyson玻色子展开技术给出了获取核玻色子形式跃迁电荷/电流密度有效算符的一种微观方法(BE方法).利用微观相互作用玻色子模型(IBM)提供的波函数可在玻色子态空间中求出核跃迁电荷/电流密度,结合电子-核散射以及核电磁跃迁的形式理论,建立了可研究电子-核散射各种形状因子,微分散射截面以及核约化跃迁几率、电磁多极矩、核态g因子等物理量的理论方案.在一种微观sdIBM-2框架下,结合现有理论方案,初步计算了192 Os核的能谱、 E2跃迁玻色子结构函数(BSF)以及2+1态到0+1态的跃迁电荷密度(TCD),理论结果能够对上述物理量作出较合理的描述.
A nucleus transition charge / current density operator is constructed based on the valence kurtosis, and a microscopic method (BE method) for obtaining the effective operator of the transitional charge / current density in the form of nuclear bosons is given by the Dyson boson expansion technique. . The nuclear transition charge / current density can be calculated in the boson state space by using the wave function provided by the micro-interaction boson model (IBM). Based on the formal theory of electron-nuclear scattering and nuclear electromagnetic transition, - Theoretical Schemes for Nuclear Scattering of Various Shape Factors, Differential Scattering Cross Sections and Probability of Nuclear Reduction Transitions, Electromagnetic Multipole Moments, and Nuclear State g Factors. Based on the microscopic sdIBM-2 framework, the energy spectrum of 192 Os nucleus, the transition state of E2 transition BSF, and the transition charge density (TCD) from state 2 + 1 to state 0 + 1 were calculated based on the existing theoretical scheme. The theoretical result can make a more reasonable description of the above physical quantities.