用伪状态基探索连续体结构
Exploring continuum structures with a pseudo-state basis
摘要：
研究了最近发展起来的平方可积离散基表示二体系统连续体性质的能力。通过对谐振子基进行简单的解析局部尺度变换，得到了该基。使用所提出的基础评估了几种势的散射相移和电跃迁概率B（E1）和B（E2）。这两个量被发现是在良好的协议与从真实的散射状态计算的精确值。该基础已被应用于描述在240 MeV/核子的~ 6 He与~（12）C和~（208）Pb靶的散射和在67 MeV/核子的~（12）C与~（11）Be的散射的连续体。计算的破碎微分截面被发现是在非常好的协议与现有的实验数据，这些反应。
英文摘要：
The ability of a recently developed square-integrable discrete basis to represent the properties of the continuum of a two-body system is investigated. The basis is obtained performing a simple analytic local scale transformation to the harmonic oscillator basis. Scattering phase-shifts and the electric transition probabilities B(E1) and B(E2) have been evaluated for several potentials using the proposed basis. Both quantities are found to be in excellent agreement with the exact values calculated from the true scattering states. The basis has been applied to describe the projectile continuum in the 6He scattering by 12C and 208Pb targets at 240 MeV/nucleon and the 11Be scattering by 12C at 67 MeV/nucleon. The calculated breakup differential cross sections are found to be in very good agreement with the available experimental data for these reactions.
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