Theoretical Physics

这个小组的建议有两个部分，一个是研究超对称场论和弦论，以更好地理解它们的性质，第二个是理解标准模型（QCD）的唯象后果以及非标准推广。 部分提案是为了理解最近的非标准模型实验事实，即中微子有质量。一个主要的努力，以了解目前的中微子振荡经历长基线，太阳和大气数据，把限制和替代方案解释中微子质量和混合。 将研究电弱对称性破缺的来源，并研究对称性破缺的替代方案的性质和约束。 弦理论的研究将集中在边界条件对空间中的场理论的影响，边界，孤子，非交换空间以及对偶和AdS/CFT对应。详细研究了N=2和N=3超对称性的弦理论。 我们也将研究绿色施瓦茨超弦的协变量子化。 一种严格的方法来研究量子修正的质量的孤子，涡，并最终膜正在开发。QCD项目与理解对撞机物理实验有关。 为了更好地分析这些实验，有必要微扰计算下一个到下一个领先的部分子截面的订单的贡献，并适用于这些结果的再确认技术。这对于理解RHIC中Higgs、迷你喷注以及双轻子的产生是非常重要的

This group proposal has two parts, one is to investigate supersymmetric field theories and String Theories to better understand their properties, and second to understand the phenomenological consequences of the Standard Model (QCD) as well as non-standard generalizations. Part of the proposal is to understand the recent non-standard model experimental fact that neutrinos have mass. A major effort to understand present neutrino oscillation experiences both long base line, solar and atmospheric data to put constraints and alternative scenarios for explaining neutrino masses and mixing. Sources of electroweak symmetry breaking will be investigated and the properties and constraints on alternative scenarios for symmetry breaking will be investigated. String theory research will focus on the effect of boundary conditions on filed theories in spaces with boundaries, solitons, in non-commutative spaces as well as dualities and AdS/CFT correspondences. Detailed study will be made of String Theories with N=2 and N=3 Supersymmetry. The covariant quantization of the Green Schwarz superstring will also be investigated. A rigorous way to study quantum corrections to the masses of Solitons, vortices and eventually branes are being developed. QCD projects are connected with understanding collider physics experiments. To better analyze these experiments it is necessary to calculate perturbatively next to next to leading order contributions to the partonic cross sections, and to apply resummation techniques to these results. These are important for understanding the production of the Higgs, minijets as well as dileptons at RHIC