Abstract

We have produced a cryogenic buffer-gas cooled beam of the diatomic molecular radical CH (methylidyne). This molecule is of interest for studying cold chemical reactions and fundamental physics measurements. Its light mass and ground-state structure make it a promising candidate for electrostatic guiding and Stark deceleration, which allows for control over its kinetic energy. This control can facilitate studies of reactions with tuneable collision energies and trapping for precise spectroscopic studies. Here, we have demonstrated electrostatic guiding of CH with fluxes up to 10⁹ molecules per steradian per pulse.

Graphical abstract

中文翻译：

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低温下亚甲基自由基的静电引导

摘要

我们生产了双原子分子自由基CH（甲炔）的低温缓冲气体冷却束。该分子对于研究冷化学反应和基础物理测量非常有用。它的轻质和基态结构使其成为静电引导和Stark减速的有希望的候选者，从而可以控制其动能。这种控制可以促进对具有可调碰撞能量的反应的研究，并有助于进行精确的光谱学研究。在这里，我们展示了CH的静电引导，其通量为每个脉冲弧度最多10 ^9个分子。

图形概要