论文标题
Cygno：带有光学读数的气态TPC，用于暗物质方向搜索
CYGNO: a gaseous TPC with optical readout for dark matter directional search
论文作者
论文摘要
Cygno项目的目标是使用带有光学读数的气态TPC来检测具有低能量阈值和方向性的太阳中微子。 Cygno演示器将由1 m 3的体积组成，其中充满了He：CF 4气体混合物在大气压下。具有高粒度CMOS传感器的光学读数以及快速探测器将提供事件拓扑的详细重建。这将允许从背景区分核后坐力信号，这主要由放射性引起的低能电子后坐力表示。得益于较高的重建效率，Cygno将对低质量暗物质敏感，并有可能克服中微子地板，最终限制了非方向性的暗物质搜索。
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.
