论文标题
技术建议：Fasernu
Technical Proposal: FASERnu
论文作者
论文摘要
Fasernu是一种提出的小型且廉价的乳液检测器，旨在首次检测对撞机中微子并研究其特性。 Fasernu将直接位于Faser的前面，沿未使用的服务隧道TI12中的梁碰撞轴距Atlas相互作用点480 m。从2021 - 23年开始，在14个TEV LHC中的3次运行中，大约1,300个电子中微子，20,000个muon中微子和20个tau中微子将与TEV规模的能量在Fasernu中相互作用。有能力观察这些相互作用，重建能量并区分口味，Fasernu将在有史以来最高的人为能量的最高人工能量下探测中微子的产生，传播和相互作用。 Fasernu检测器将由1000层与钨板交织在一起。乳液和钨的总体积为25厘米x 25厘米x 1.35m，钨靶质量为1.2吨。从2021 - 23年开始，将安装7套乳液层，在计划的技术停靠站中，大约每20-50 1/fb更换一次。在本文档中，我们总结了Fasernu的物理目标，并讨论中微子通量和相互作用率的估计值。然后，我们详细描述了Fasernu探测器，包括用于组装，运输，安装和乳液更换的计划，以及乳液读数和分析数据的程序。我们对检测器组件和基础设施工作的成本估算以及实验时间表结束。
FASERnu is a proposed small and inexpensive emulsion detector designed to detect collider neutrinos for the first time and study their properties. FASERnu will be located directly in front of FASER, 480 m from the ATLAS interaction point along the beam collision axis in the unused service tunnel TI12. From 2021-23 during Run 3 of the 14 TeV LHC, roughly 1,300 electron neutrinos, 20,000 muon neutrinos, and 20 tau neutrinos will interact in FASERnu with TeV-scale energies. With the ability to observe these interactions, reconstruct their energies, and distinguish flavors, FASERnu will probe the production, propagation, and interactions of neutrinos at the highest human-made energies ever recorded. The FASERnu detector will be composed of 1000 emulsion layers interleaved with tungsten plates. The total volume of the emulsion and tungsten is 25cm x 25cm x 1.35m, and the tungsten target mass is 1.2 tonnes. From 2021-23, 7 sets of emulsion layers will be installed, with replacement roughly every 20-50 1/fb in planned Technical Stops. In this document, we summarize FASERnu's physics goals and discuss the estimates of neutrino flux and interaction rates. We then describe the FASERnu detector in detail, including plans for assembly, transport, installation, and emulsion replacement, and procedures for emulsion readout and analyzing the data. We close with cost estimates for the detector components and infrastructure work and a timeline for the experiment.
