Gauge fields, strings and phenomenology II

现代粒子理论正站在十字路口。最近的实验数据已经相当精确地证实了粒子物理学的基本理论结构，即“标准模型”(SM)。然而，最近宇宙学的巨大进步表明，尽管SM取得了成功，但仍有许多东西是SM无法在宇宙学尺度上解释的，例如暗物质。这种对比，加上几个理论上的不足，导致了一种随之而来的感觉，即未来会有更多的事情发生，我们期待着当LHC对撞机在2009年开始全面运行时，这个故事的一部分揭开面纱。这种相互矛盾的图景引导我们既向内看，深入SM的初级结构以更好地了解它的成功，又向外推进能量尺度(和精度)的边界，寻求新物理学将变得可见的前沿。这种双重观点推动了我研究的主要目标。

Modern particle theory stands at a crossroads. Recent experimental data has led to a rather precise confirmation of the basic theoretical structure for particle physics - namely the `Standard Model' (SM). However, the tremendous recent advances in cosmology show that, despite its success, there is much that the SM cannot explain on cosmological scales, e.g. dark matter. This contrast, combined with several theoretical inadequacies, leads to an ensuing sense that much more is to come and we look forward to the unveiling of part of this story when the LHC collider begins full operations in 2009. Such a conflicted picture directs us to look both inward, to delve into the primary structures of the SM to better understand its success, and outward, to push the boundaries in energy scale (and precision) seeking the frontier at which new physics will become visible. This dual viewpoint drives the primary goals of my research.