论文标题

检测在阳性形成过程中产生的光发射

Detection of light emission produced in the process of positronium formation

论文作者

Pietrow, M., Zaleski, R., Wagner, A., Slomski, P., Hirschmann, E., Krause-Rehberg, R., Liedke, M. O., Butterling, M., Weinberger, D.

论文摘要

在凝结物质中发出的过量能量可以作为光释放。该光的光谱分析可能是研究材料电子特性的一种新方法。根据我们的知识,我们报告了第一次实验尝试,以验证这种排放过程的存在。结果,PS形成过程中光子发射的可能性在两种不同的固体中的实验不确定性之内:N-烷烃和多孔二氧化硅。但是,似乎烷烃表面的PS形成不伴随着在1.6-3.9 eV的检测范围内的光子发射。讨论了可能影响PS形成过程中发出的光子能量的各种过程以阐明此问题。为了帮助未来的实验,开发了方程式,以估计光发射事件与歼灭事件的预期比,并在PS形成过程中存在或不存在光子。

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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