Study for the Strong Interaction using Kaonic Atom at f-factory

这个项目最初是作为在phi-factory daphne （LNF， INEN）使用Kaonic Atom研究KN强相互作用而开始的。由于强相互作用和渐近自由的性质，对低能区的理解相当有限。另一方面，研究它对于理解我们“冻结”的宇宙是极其重要的。为了从手性对称性和c - SU(3)对称性的角度理解其本质，我们需要更多地了解强相互作用中奇异性的作用。通过这种方式，我们可以研究重子和介子如何获得它们的静止质量，以及它们如何随着夸克和反夸克凝聚以及手性对称性破缺而变化。为了研究这一点，我们计划在低能极限下研究KN相互作用，并提供非常精确的数据，用于确定phi-factory的显式对称破缺参数。然而，由于daphne机器试运行的延迟，我们被迫扩展了我们当前项目的策略，并将我们的主题扩展如下：1)μ子衰变的精确测量（英国RAL）费米耦合常数的精确测定2)μ子异常磁矩的测量（美国BNL）弱相互作用的研究和超越标准模型3)核介质中的深束缚介子态(GSI，（德国）核介质中的介子质量机会：今年，我们将开始试用Kaonic Atom，在那之后不久，我们将展示Kaonic Atom的结果。

This project is originally started as a study of KN strong interaction by using Kaonic Atom at phi-factory DAPHINE (LNF, INEN). Because of the nature of thc strong interaction, asymptotic freedom the understanding of the low energy rcgion is quite limited. On the other hand, it is extremely important to investigate it for understanding our "frozen" universe.To understand the nature in terms of chiral symmetry and thc SU (3) symmetry, we need to know much about the role of the strangeness in the strong interaction. In this way, we can investigate how baryons and mesons get their rest mass and how they change as a function of quark and anti-quark condensation and the chiral Symmetry breaking.To investigate this, we are planning to study the KN interaction at the low energy limit and present very precise data for the ehiral explicit symmetry breaking parameter determination Lit the phi-factory.Due to the delay of the machine commissioning at DAPHINE, however, we were forced to expand our strategy for the present project and expanded our subject as follows :1) Precise measurement of the muon decay (RAL, UK)Precise determination of the Fermi coupling constant2) Measurement of the muon anomalous magnetic moment (BNL, USA)Weak interaction investigation and beyond standard model3) Deeply bound meson state in nuclear media (GSI, Germany)Meson mass chance in nuclear mediaDAPHINE stairs commissioning this year and we will present Kaonic Atom result shortly after that.