K-shell photodetachment of He- : experiment and theory.
K-shell photodetachment of He- : experiment and theory.
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He- 的 K 壳层光脱离：实验和理论。
DOI：
10.1103/physrevlett.87.253002
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发表时间：
2001
影响因子：
8.6
通讯作者：
S. Manson
中科院分区：
文献类型：
--
作者：
N. Berrah;J. Bozek;G. Turri;G. Akerman;B. Rude;H;S. Manson
用同步辐射真空紫外光子-离子束技术对He ~-产生He ~+离子进行了高分辨K壳层光剥离测量。对这个基本的负离子的测量显示显着的结构有很大的不同，定性和定量的，从中性原子和正离子的相应过程，由于在初始和最终状态的He-的相关性的主导地位。此外，这项实验研究提供了一个明确的测试两个独立的理论计算，报告严重的差异，并显示出良好的协议与其中之一。
High-resolution K-shell photodetachment measurements of He- giving rise to He+ ions have been performed using a merged synchrotron vacuum ultraviolet photon-ion beam technique. The measurements on this fundamental negative ion display dramatic structure differing substantially, qualitatively and quantitatively, from the corresponding process in neutral atoms and positive ions, owing to the dominance of correlation in both initial and final states of He-. In addition, this experimental investigation provides an unambiguous test of two independent theoretical calculations that report serious discrepancies and shows excellent agreement with one of them.