COHERENT实验：2026更新
The COHERENT Experiment: 2026 Update
AI总结：
COHERENT实验通过高精度检测CEvNS事件，测试标准模型并探索超出标准模型的新物理，同时测量多种核素的中微子截面。
摘要：
COHERENT实验利用斯帕尔丹神经源（SNS）在橡树岭国家实验室（ORNL）的多个核靶，测量由相干弹性中微子-核散射（CEvNS）引起的中微子诱导反冲。近年来，使用数十公斤探测器质量、铯碘闪烁晶体、液氩单相探测器和高纯度锗谱仪，已成功实现了多个CEvNS测量。在下一阶段，COHERENT旨在通过高统计量检测CEvNS事件，对粒子物理标准模型进行精确测试，并探测超出标准模型的新物理。通过降低阈值、减少背景和扩大探测器质量，可以实现百分比级别的精度。这与基准测试SNS的中微子通量相辅相成。进一步的探测器将测量其他核素中的CEvNS，包括较轻的钠和氖等靶核，以继续测试截面的中子数平方依赖性。COHERENT还可以在中微子能量低于约50 MeV的情况下，研究不同核素的电荷电流和中性电流非弹性中微子-核截面。许多这些截面从未被测量过，但对解释大型中微子实验如DUNE、超环形加速器（Super-K）、超环形加速器（Hyper-K）和HALO中的核心坍缩超新星探测至关重要。
英文摘要：
The COHERENT experiment measures neutrino-induced recoils from coherent elastic neutrino-nucleus scattering (CEvNS) with multiple nuclear targets at the Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory (ORNL), USA. Several successful CEvNS measurements have been achieved in recent years with tens-of-kg detector masses, with a CsI scintillating crystal, a liquid argon single-phase detector, and high-purity germanium spectrometers. For the next phase, COHERENT aims at high-statistics detection of CEvNS events for precision tests of the standard model of particle physics, and to probe new physics beyond-the-standard model. Percent-level precision can be achieved by lowering thresholds, reducing backgrounds, and by scaling up the detector masses. It goes hand in hand with benchmarking the neutrino flux from the SNS. Further detectors will measure CEvNS in additional nuclei, including lighter target nuclei such as sodium and neon, to continue to test the expected neutron-number-squared dependence of the cross section. COHERENT can furthermore study charged-current and neutral-current inelastic neutrino-nucleus cross sections on various nuclei at neutrino energies below $\sim$50 MeV. Many of these cross sections have never been measured before, but are critical input for the interpretation of core-collapse supernova detection in large-scale neutrino experiments such as DUNE, Super-K, Hyper-K, and HALO.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
