Astroparticle Physics

中微子是自然界最丰富的基本粒子之一。中微子相互作用是一个深入研究的领域，它控制着诸如恒星核反应或医学同位素衰变等重要现象。我正在领导精密冰立方下一代升级（PINGU）的设计，这是一个新的中微子探测器，将位于南极洲南极站附近的冰立方中微子天文台。PINGU建立在DeepCore的成功基础上，DeepCore是一种低能量探测器，目前作为IceCube的一部分运行，我是IceCube的首席设计师。DeepCore现在达到了它的全部灵敏度，为中微子振荡的精确研究和暗物质的间接搜索提供了一个新的窗口。利用大量的大气中微子样本（每年约50，000个），PINGU将提供世界上第一个中微子质量等级的测量，最终确定哪种中微子最轻。这个新的南极粒子物理计划增强了IceCube的原始设计目标，IceCube是世界上研究高能中微子的首要设施。

The neutrino is one of nature's most abundant elementary particles. Neutrino interactions, an area of intense study, govern important phenomena such as stellar nuclear reactions or the decay of medical isotopes. I am leading the design of the Precision IceCube Next Generation Upgrade (PINGU), a new neutrino detector to be located in the IceCube Neutrino Observatory near South Pole Station Antarctica. PINGU builds on the success of DeepCore, a low-energy detector currently operating as a part of IceCube for which I was a lead designer. DeepCore is now reaching its full sensitivity and provides a new window for precision studies of neutrino oscillations and indirect searches for dark matter. Exploiting a very large sample of atmospheric neutrinos (approximately 50,000 per year), PINGU will provide a worlds first measurement of the neutrino mass hierarchy, ultimately identifying which neutrino is lightest. This novel Antarctic particle physics program augments the original design goals of IceCube, the worlds premier facility for studying high energy neutrinos.