论文标题
与高压时间投影室的中微子 - 氢相互作用
Neutrino-hydrogen interactions with a high-pressure time projection chamber
论文作者
论文摘要
我们研究了使用横向运动学不平衡技术在多核靶标中检测纯中微子 - 氢相互作用的想法[Lu等，Phys。 Rev. D 92，051302（2015）]在高压时间投影室（HPTPC）中。通过完全固体角度接受，MEV级质子跟踪阈值，最先进的跟踪分辨率和O（100 m^3）气量在10 BAR时，HPTPC可以提供机会实现这一技术。我们提出在TPC中使用富氢气的使用，以实现大氢质量的高检测纯度。在沙丘实验中预测的中微子束暴露时，使用甲烷气体的HPTPC可以实现每年10^4的中微子 - 氢气事件，纯度以上纯度以上。在本文中，我们介绍了各种氩气混合物的事件率和纯度的系统研究，并检查了这些候选与TPC跟踪相关特性的候选物。
We investigate the idea of detecting pure neutrino-hydrogen interactions in a multinuclear target using the transverse kinematic imbalance technique [Lu et al., Phys. Rev. D 92, 051302 (2015)] in a high-pressure time projection chamber (HPTPC). With full solid-angle acceptance, MeV-level proton tracking threshold, state-of-the-art tracking resolution, and an O(100 m^3) gas volume at 10 bar, an HPTPC could provide an opportunity to realize this technique. We propose the use of hydrogen-rich gases in the TPC to achieve high detection purity with large hydrogen mass. With the projected neutrino beam exposure at the DUNE experiment, neutrino-hydrogen events of the order of 10^4 per year with purity above 90% could be achieved with such an HPTPC using methane gas. In this paper, we present a systematic study of the event rate and purity for a variety of argon-alkane mixtures, and examine these gas candidates for the TPC tracking-related properties.
