From the Ground State of String Theory to the Standard Model

拟议中的研究将侧重于寻找一种超越基本粒子物理学标准模型的理论，这种理论将能够解释夸克和轻子质量模式等数量。弦理论是解决这一问题的一个潜在的候选理论，然而该理论有许多由模场的值标记的退化基态。因此，质量问题的可预测性被能够确定模场的值所取代。本研究的目的是计算一个实际模型中所有模场的值。方法是引入扭曲的时空，自然地产生物理尺度的大层次。PI建议确定存在通量时弦紧化的背景几何性质。这可能使我们有可能确定破缺超对称的性质，并允许确定宇宙常数。

The proposed research will focus on finding a theory beyond the standard model of elementary particle physics that will be capable of explaining quantities such as the pattern of quark and lepton masses. String theory is a potential candidate theory to solve this problem, however the theory has many degenerate ground states labeled by the value of the moduli fields. Thus the predictability of the masses problem is replaced by being able to determine the value of the moduli fields. The goal of this research effort is to compute the value of all the moduli fields in a realistic model. The approach is to introduce warped space times that naturally generate large hierarchies of physical scales. The PI proposes to determine the properties of the background geometry of string compactifications in the presence of fluxes. This might make it possible to determine the nature of broken supersymmetry and allow a determination of the cosmological constant.