RUI: Role of Scalar Mesons in Low-Energy QCD and their Connections to Non-Perturbative Higgs Dynamics

这个提议的目的是研究低于2GeV的轻标量介子的性质和夸克亚结构。方法论是着眼于强相互作用的有效模型，例如线性和非线性手性拉格朗日。希望从夸克的角度洞察这些介子的组成。例如，一些轻介子被发现是两个夸克态和四个夸克态的混合物。希望对标量介子的更好的理解将有助于电弱对称破缺和D介子的性质的研究，这些都是由Babar合作和费米实验室实验研究的。这项研究将让本科生参与调查的各个计算方面。

The purpose of this proposal is to investigate the properties and quark substructure of the light scalar mesons below two GeV. The methodology is to look at effective models of strong interactions such as linear and non-linear chiral lagrangians. The hope is to gain insight into the makeup of these mesons in terms of the underlying quarks. For example, some of the light mesons have been found to be a mixture of two and 4 quark states. It is hoped that a better understanding of the scalar mesons will shed light on electroweak symmetry breaking and on the properties of the D mesons which have been investigated by both the BaBar Collaboration and Fermilab experiments. The research will involve undergraduates in various computational aspects of the investigation.