From the Ground State of String Theory to the Standard Model

从弦理论的基态到标准模型

• 批准号: 0244722
• 负责人: Katrin Becker
• 金额: $ 7.5万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244722&HistoricalAwards=false
• 关键词: Ground; State; String; Theory; Standard

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.

拟议中的研究将集中在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。弦理论是解决这个问题的一个潜在候选理论，然而该理论有许多由模场值标记的简并基态。因此，质量问题的可预测性被能够确定模场的值所取代。这项研究工作的目标是在一个现实的模型中计算所有模量字段的值。这种方法是引入弯曲的时空，自然产生大的物理尺度层次。PI建议确定弦紧化的背景几何的性质，在通量的存在下。这可能使我们有可能确定破缺的超对称性的性质，并允许确定宇宙学常数。