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Direct Extraction of Alignment Moments from Inelastic Scattering Images

机译:从非弹性散射图像中直接提取对准矩

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摘要

We present a novel means of analyzing velocity-map images of angular momentum polarization in inelastic scattering. In this approach, linear combinations of angular distributions obtained by integrating select regions of images for two probe laser polarizations directly yield the alignment-free differential cross sections and the differential alignment moments. No fitting is needed in the analysis. The method relies on the fact that the angular distribution for out-of-plane scattering is encoded in the distribution along the relative velocity vector, and this may be recovered quantitatively owing to the redundancy of the in-plane and out-of-plane scattering for the horizontal polarization case.
机译:我们提出了一种新的方法来分析非弹性散射中角动量极化的速度图图像。在这种方法中,通过对两个探针激光偏振的图像选择区域进行积分而获得的角度分布的线性组合直接产生无对准的差分横截面和差分对准力矩。分析中不需要拟合。该方法依赖于以下事实:用于面外散射的角度分布被编码在沿相对速度矢量的分布中,并且由于面内散射和面外散射的冗余,可以定量地恢复这种分布。对于水平极化情况。

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