HIGH-RESOLUTION X-RAY RESONANT RAMAN-SCATTERING
HIGH-RESOLUTION X-RAY RESONANT RAMAN-SCATTERING
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DOI：
10.1103/physrevlett.74.3700
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发表时间：
1995-05-01
影响因子：
8.6
通讯作者：
THOLE, BT
中科院分区：
文献类型：
--
作者：
CARRA, P;FABRIZIO, M;THOLE, BT
本文给出了X射线共振拉曼散射的一般公式。主要结果有两个：第一，认为最近的高分辨实验，显示所谓的宽度窄化，不能在单电子理论的框架下讨论。包括多体效应大大改变了共振的解释，如数值计算所示。其次，它表明，快速碰撞，对称性分析的横截面提供了一个简单的描述，可观察到的光谱。
A general formulation of x-ray resonant Raman scattering is presented. Two main results are found. First, it is argued that recent high resolution experiments, displaying the so-called width narrowing, cannot be discussed in the framework of one-electron theory. Inclusion of many-body effects drastically alters the interpretation of the resonances, as demonstrated by numerical calculations. Second, it is shown that, for fast collisions, a symmetry analysis of the cross section provides a simple description of the observable spectra.