Collaborative Research: WoU-MMA: Ultrahigh Energy Neutrinos with the Radio Neutrino Observatory in Greenland

合作研究：WoU-MMA：与格陵兰岛射电中微子观测站的超高能中微子

• 批准号: 2310127
• 负责人: Delia Tosi
• 金额: $ 45.75万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2310127&HistoricalAwards=false
• 关键词: Collaborative; Research; WoU; MMA; Ultrahigh

Ultra-high-energy neutrinos are unique astrophysical messengers as they interact only weakly with intervening matter and can therefore be used to probe high energy sources and extreme conditions throughout the universe, and to test physics at energies beyond the standard models. With support from this award, the PIs will expand the currently operating Radio Neutrino Observatory in Greenland (RNO-G) to enable observations of the highest-energy neutrinos. When combined with observations from other messengers like photons, cosmic rays, and gravitational waves, observations of neutrinos made with RNO-G can further advance our understanding of the most powerful cosmic ray accelerators and explosive events in the universe. This award will engage people from a broad range of backgrounds in multi-messenger astrophysics through this research and through dedicated student workshops and activities. This award addresses the priority areas of NSF's "Windows on the Universe" Big Idea. RNO-G’s design is optimized to search for the radio flash generated by neutrino interactions in polar ice using modular stations that act as their own independent experiments. With the large footprint of the full array, RNO-G will have an unprecedented sensitivity and will be the first ultra-high energy neutrino observatory with a view of the Northern sky. This two-year program will continue to build the RNO-G array beyond the seven stations currently installed and operating in Greenland. The supported groups will improve the drill reliability and efficiency to more rapidly install stations in the ice. They will construct and install the instrumentation and commission the stations. They will study radio wave propagation in ice, crucial for accurate modeling of the instrument. They will operate the RNO-G stations in science data-taking mode and study the performance of the instrument.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

超高能中微子是独特的天体物理信使，因为它们仅与介入物质相互作用微弱，因此可用于探测整个宇宙的高能源和极端条件，并在此支持下以超出标准模型的能量测试物理。获得该奖项后，PI 将扩大格陵兰岛目前正在运行的射电中微子观测站 (RNO-G)，以便与光子、宇宙等其他信使的观测相结合，对最高能量的中微子进行观测。射线和引力波，RNO-G 对中微子的观测可以进一步增进我们对宇宙中最强大的宇宙射线加速器和爆炸事件的理解，该奖项将通过多信使天体物理学吸引具有广泛背景的人们。这项研究以及专门的学生研讨会和活动解决了 NSF 的“宇宙之窗”大创意的优先领域，RNO-G 的设计经过优化以搜索无线电闪光。 RNO-G 使用模块化站作为自己的独立实验，由极地冰中的中微子相互作用产生，RNO-G 将具有前所未有的灵敏度，并将成为第一个能够观测到中微子的超高能中微子观测站。这个为期两年的计划将继续在格陵兰岛目前安装和运行的七个站之外建造 RNO-G 阵列，以提高钻探的可靠性和效率，以更快地在冰上安装站。建造和安装仪表以及他们将研究冰中的无线电波传播，这对于仪器的精确建模至关重要。他们将以科学数据采集模式操作 RNO-G 站并研究仪器的性能。该奖项反映了 NSF 的法定使命和目标。通过使用基金会的智力价值和更广泛的影响审查标准进行评估，该项目被认为值得支持。