Snowmass 2021白皮书:Selena中微子实验
Snowmass 2021 White Paper: The Selena Neutrino Experiment
摘要:
由耦合到硅互补金属氧化物半导体(CMOS)有源像素阵列用于电荷读出的非晶硒(aSe)的电离目标层制成的成像设备是中微子物理学的有前途的技术。固态靶的高空间分辨率为寻找无中微子$ββ$衰变和使用$^{82}$ Se的电子中微子($ν_e$)光谱学提供了无与伦比的天然放射性背景抑制。在本白皮书中,我们总结了大型成像探测器的广泛科学计划,该探测器具有10吨重的$^{82}$ Se靶。我们回顾了探测器技术,并概述了正在进行的研究计划,以实现这一实验。
英文摘要:
Imaging devices made from an ionization target layer of amorphous selenium (aSe) coupled to a silicon complementary metal-oxide-semiconductor (CMOS) active pixel array for charge readout are a promising technology for neutrino physics. The high spatial resolution in a solid-state target provides unparalleled rejection of backgrounds from natural radioactivity in the search for neutrinoless $ββ$ decay and for electron neutrino ($ν_e$) spectroscopy with $^{82}$Se. In this white paper, we summarize the broad scientific program of a large imaging detector with a 10-ton target of $^{82}$Se. We review the detector technology, and outline the ongoing research program to realize this experiment.
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