Electroweak Radiative Effects and Hadronic Structure

谁不想知道我们这个世界的基本组成部分以及它们相互作用的方式呢？核物理和粒子物理正是研究这个问题的。根据粒子物理学的标准模型，有六种类型的夸克、六种类型的轻子和相应的反粒子，它们通过四种基本相互作用联系在一起。然而，最近来自中微子振荡、暗物质和暗能量以及量子引力的证据表明，已有40年历史的标准模型可能是不完整的，我们可能正处在一个新理论和“新物理学”的门槛上。寻找新物理可能信号的一种方法是在低能量下进行高精度实验，这可以间接获得多tev尺度的物理，并对大型强子对撞机研究计划起重要的补充作用。这项研究需要实验和理论两方面的努力，而新一代的实验将需要理论上新的精确度。

Who would not want to know the basic constituents of our world and the way they interact? Nuclear and particle physics studies exactly that. According to the Standard Model of particle physics, there are six types of quarks, six types of leptons, and corresponding anti-particles connected by four fundamental interactions. However, the recent evidence coming from neutrino oscillation, dark matter and dark energy, and quantum gravity showed that the 40-year old Standard Model may be incomplete, and that we may be at the threshold of a new theory and "New Physics". One way to look for possible signals of new physics is with high-precision experiments at lower energy which can provide indirect access to physics at multi-TeV scales and play an important complementary role to the Large Hadron Collider research program. This research requires both experimental and theoretical effort, and the new-generation experiments will need a new degree of precision from theory. My colleagues and I strive to bring subatomic physics computations to the next level and to provide the most precise and reliable theoretical input for the high-precision experiments by taking advantage of the new semi-automated symbolic computing methods. Our innovative computational models can be used for a wide range of applications, including next-to-leading and next-to-next-to-leading electroweak radiative corrections for Møller scattering, electron-proton and positron-proton scattering, modeling pion electroproduction, evaluating electric and magnetic dynamical polarizabilities for hadrons, and many others. This research program can be a crucial contribution to cutting-edge Canadian science in the coming decade, and it would also allow for training a new generation of researchers who would enable Canada to maintain its position at the forefront of world-class research for years to come.