The CYGNO project has the goal to use a gaseous TPC with optical readout to detect dark matter and solar neutrinos with low energy threshold and directionality. The CYGNO demonstrator will consist of 1 m 3 volume filled with He:CF 4 gas mixture at atmospheric pressure. Optical readout with high granularity CMOS sensors, combined with fast light detectors, will provide a detailed reconstruction of the event topology. This will allow to discriminate the nuclear recoil signal from the background, mainly represented by low energy electron recoils induced by radioactivity. Thanks to the high reconstruction efficiency, CYGNO will be sensitive to low mass dark matter, and will have the potential to overcome the neutrino floor, that ultimately limits non-directional dark matter searches.

中文翻译：

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CYGNO：一种用于暗物质定向搜索的具有光学读数的气态 TPC

CYGNO 项目的目标是使用具有光学读数的气态 TPC 来检测具有低能量阈值和方向性的暗物质和太阳中微子。CYGNO 演示器将由 1 m 3 体积组成，其中填充有常压下的 He:CF 4 气体混合物。具有高粒度 CMOS 传感器的光学读数与快速光检测器相结合，将提供事件拓扑结构的详细重建。这将允许从背景中区分核反冲信号，主要由放射性引起的低能电子反冲表示。由于重建效率高，CYGNO 将对低质量暗物质敏感，并有可能克服中微子层，这最终会限制无方向性的暗物质搜索。