With the advent of a new generation of neutrino experiments which leverage high-intensity neutrino beams for precision neutrino oscillation parameter and for CP violation phase measurements, it is timely to explore physics topics beyond the standard neutrino-related physics. Given that beyond the standard model (BSM) physics phenomena have been mostly sought at high-energy regimes, such as the LHC at CERN, the exploration of BSM physics in neutrino experiments will enable complementary measurements at the energy regimes that balance that of the LHC. This is in concert with new ideas for high-intensity beams for fixed target and beam-dump experiments world-wide. The combination of the high intensity beam facilities and large mass detectors with highly precise track and energy measurements, excellent timing resolution, and low energy thresholds will help make BSM physics reachable even in low energy regimes in accelerator-based experiments and searches for BSM phenomena from cosmogenic origin. Therefore, it is conceivable that BSM topics could be the dominant physics topics in the foreseeable future. In this spirit, this paper provides a review of the current theory landscape theory in neutrino experiments in two selected areas of the BSM topics - dark matter and neutrino related BSM - and summarizes the current results from existing neutrino experiments for benchmark. This paper then provides a review of upcoming neutrino experiments and their capabilities to set the foundation for potential reach in BSM physics in the two themes. One of the most important outcomes of this paper is to ensure theoretical and simulation tools exist to perform studies of these new areas of physics from the first day of the experiments, such as DUNE and Hyper-K. Tasks to accomplish this goal, and the time line for them to be completed and tested to become reliable tools in a timely fashion are also discussed.

中文翻译：

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下一代中微子实验的新机遇（第 1 部分：BSM 中微子物理学和暗物质）

随着利用高强度中微子束进行精确中微子振荡参数和 CP 违反相位测量的新一代中微子实验的出现，探索标准中微子相关物理之外的物理主题是及时的。鉴于超出标准模型 (BSM) 的物理现象主要是在高能状态下寻求的，例如欧洲核子研究中心的 LHC，在中微子实验中探索 BSM 物理学将能够在平衡 LHC 的能量状态下进行补充测量. 这与世界范围内用于固定目标和光束倾倒实验的高强度光束的新想法一致。高强度光束设施和大质量探测器的结合，具有高精度的轨迹和能量测量，出色的时间分辨率，低能量阈值将有助于即使在基于加速器的实验和从宇宙起源寻找 BSM 现象的低能量状态下也能达到 BSM 物理。因此，可以想象，在可预见的未来，BSM 主题可能会成为主导的物理主题。本着这种精神，本文回顾了 BSM 主题的两个选定领域（暗物质和中微子相关 BSM）中中微子实验的当前理论景观理论，并总结了现有中微子实验的当前结果作为基准。然后，本文回顾了即将进行的中微子实验及其为 BSM 物理学在这两个主题中的潜在影响奠定基础的能力。本文最重要的成果之一是确保存在理论和模拟工具，以便从实验的第一天开始对这些新的物理学领域进行研究，例如 DUNE 和 Hyper-K。还讨论了完成此目标的任务，以及完成和测试这些任务以及时成为可靠工具的时间表。