内约束原子双光电离中的镜对称破缺
Mirror symmetry rupture in double photoionization of endohedrally confined atoms
摘要：
本文用方势阱模型研究了He原子在球形富勒烯中心的光子碰撞双电子发射。该系统表现出作为井深的函数的避免的交叉的歧管，并且呈现镜面塌陷。然而，这种对称性被打破的三重微分截面，由于在初始状态的He电子的离域。此外，富勒烯潜力涉及更高的角动量分波被包括在该过程中，这修改了众所周知的两瓣截面从孤立的他。
英文摘要：
We study the double electronic emission by photon impact from He in the center of a spherical fullerene, which is modeled by a square-well shell. This system exhibits a manifold of avoided crossings as a function of the well depth, and present mirror colapses. However, this symmetry is broken in the triple differential cross section due to the delocalization of the He electrons in the initial state. Moreover, the fullerene potential involves higher angular momenta partial waves to be included in the process, which modifies the well-known two-lobe cross section from isolated He.
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