Quantum Chromodynamics, Electroweak Physics and Beyond

理论基本粒子物理学的研究将包括以下研究：（i）微扰量子色动力学框架内核子的部分子结构，（ii）电弱相互作用对称性破缺的起源;以及（iii）新物理学的可观察特征，例如超对称粒子和额外维度。粒子是观察到的核粒子（如质子和中子）的基本组成部分（即夸克和胶子）。 电弱相互作用的破缺与基本粒子质量的起源密切相关。 新的物理场景，如超对称和额外维度，如果被发现，可以将我们对基本粒子物理学中非常成功的标准模型的理解扩展到更深的层次。

Research in theoretical elementary particle physics will includestudies of: (i) the partonic structure of the nucleon within theframework of perturbative quantum chromodynamics, (ii) the origin ofelectroweak interaction symmetry breaking; and (iii) observable signaturesof new physics, such as supersymmetric particles and extra dimensions. Partonsare fundamental constituents (i.e. quarks and gluons) of observed nuclearparticles, such as protons and neutrons. Electroweak interaction symmetrybreaking is intimately related to the origin of masses of fundamentalparticles. New physics scenarios, such as supersymmetry and extradimensions, if discovered, could extend our understanding of the extremelysuccessful Standard Model of elementary particle physics to a much deeperlevel.