标题： 散射观测量来自少体密度和6Li上的康普顿散射 显示英文标题

标题： Scattering Observables from Few-Body Densities and Compton Scattering on 6Li

摘要： 散射在轻核上的动力学使用标准方法在数值上代价高昂。幸运的是，最近的发展使得可以将给定探针的相关量分解为一个卷积，即$n$-体跃迁密度振幅（TDA）和给定探针的相互作用核。 这些TDA仅依赖于目标，而不依赖于探针；它们针对每组动力学参数计算一次，并可用于不同的相互作用。 核仅依赖于探针，而不依赖于目标；它们可以用于不同目标和不同动力学参数。 对于超过四个核子，TDA的计算变得在数值上困难，但我们讨论了一种新的解决方案，通过使用相似重整化群变换，以及随后的逆变换。 这项技术允许将TDA方法扩展到更重的核素，如 6Li。 我们展示了 6Li 上康普顿散射的初步结果，并与可用数据进行了比较，预计即将进行更彻底的研究。 我们还讨论了轻核上π介子光致产生和其他反应的正在进行的扩展。 显示英文摘要

摘要： The dynamics of scattering on light nuclei is numerically expensive using standard methods. Fortunately, recent developments allow one to factor the relevant quantities for a given probe into a convolution of an $n$-body Transition Density Amplitude (TDA) and the interaction kernel for a given probe. These TDAs depend only on the target, and not the probe; they are calculated once for each set of kinematics and can be used for different interactions. The kernels depend only on the probe, and not on the target; they can be reused for different targets and different kinematics. The calculation of TDAs becomes numerically difficult for more than four nucleons, but we discuss a new solution through the use of a Similarity Renormalization Group transformation, and a subsequent back-transformation. This technique allows for extending the TDA method to heavier nuclei such as 6Li. We present preliminary results for Compton scattering on 6Li and compare with available data, anticipating an upcoming, more thorough study. We also discuss ongoing extensions to pion-photoproduction and other reactions on light nuclei.