Detector comissioning and analysis for the Tokai-to Kamioka (T2K) neutrino oscillationn experiment

T2 K（Tokai-to-Kamiokande）实验研究中微子振荡，这是一种量子力学现象，其中三种“味道”之一产生的中微子穿越一定距离并作为不同的味道相互作用。中微子振荡的建立证实了中微子实际上有质量，而粒子物理学的标准模型却赋予它们零质量。中微子质量和振荡模式的模式是理解基本粒子标准模型结构的基础，也对宇宙如何从大爆炸演化到当前状态的宇宙学问题具有重要意义。

The T2K (Tokai-to-Kamiokande) experiment studies neutrino oscillations, a quantum mechanical phenomena in which a neutrino produced in one of three "flavors" traverses some distance and interacts as a different flavor. The establishment of neutrino oscillations has confirmed that the neutrinos do in fact mass, whereas the Standard Model of particle physics had assigned them zero mass. The pattern of neutrino masses and oscillation modes are fundamental to understanding the structure of the Standard Model of elementary particles, and also has significance for cosmological issues of how the universe evolved from the Big Bang to its current state.