电子偶素形成过程中光发射的探测
Detection of light emission produced in the process of positronium formation
摘要：
凝聚态物质中电子偶素（Ps）形成过程中释放出的多余能量可以作为光释放出来。对这种光的光谱分析可以成为研究材料电子性质的新方法。我们报告的第一个实验尝试，根据我们的知识，以验证这种排放过程的存在。因此，在Ps形成过程中发射光子的可能性在两种不同固体的实验不确定性范围内：正烷烃和多孔二氧化硅。然而，似乎在烷烃表面上的Ps形成并不伴随着具有在1.6 - 3.9 eV的检测范围内的能量的光子的发射。各种过程中，可以影响的能量的PS形成过程中发射的光子进行了讨论，以阐明这个问题。为了帮助未来的实验，方程被开发来估计在Ps形成期间存在或不存在光子的情况下光发射事件与湮灭事件的预期比率。
英文摘要：
The excess energy emitted during the positronium (Ps) formation in condensed matter may be released as light. Spectroscopic analysis of this light can be a new method of studying the electronic properties of materials. We report the first experimental attempt, according to our knowledge, to verify the existence of this emission process. As a result, the possibility of the emission of photons during Ps formation is within the experimental uncertainty in two different solids: an n-alkane and porous silica. However, it seems that the Ps formation on the alkane surface is not accompanied by the emission of photons with energy in the detection range of 1.6 - 3.9 eV. Various processes that can influence the energy of the photon emitted during the Ps formation are discussed to elucidate this issue. To aid future experiments, equations were developed to estimate the expected ratio of light emission events to annihilation events with the presence or absence of a photon during the Ps formation.
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