【摘要】 本文用乘子方法导出数值计算使用的,带有紧致核的三体T矩阵;并分别给出,当初态和末态取平面波或扭曲波形式时,A(a,ax)B型三体反应跃迁振幅的计算公式。T矩阵中,除相应于准自由散射和末态相互作用项外,还包括三体形成链式结构态的共振项。在将链式结构态展成两个二体束缚态的近似下,给出共振能量计算公式;并以靶核取~8Be和~6Li为例,将计算值与实验值和类分子模型理论值相比较,符合较好。最后还讨论了检验此种共振的实验设想。更多还原

【Abstract】 In this Paper a calculable three-body T matrix with compact kernel is obtainedby using multiplier’s methods. The formulations for calculating the A(a, ax)B type three-body reaction trans-tion amplitudes are presented when plane wave or distorted wave is used for theincident and outgoing states. This T matrix also includes the resonance terms of the three-body chain struc-ture states besides quasi-free scattering terms and final states interaction terms. A calculable formulation for the resonance energy of chain structure states ispresented when it is expanded approximately into two two-body bound states. For~8Be and ~6Li as target nuclei, the resonance energies are calculated. The results arein good agreement with the experimental values and the theoretical values of a mole-cule-like model. In order to check this kind of resonances, some experiments areproposed.更多还原