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

这个项目最初是在Phi-Factory Daffine(LnF，inen)使用Kaonic原子研究KN强相互作用。由于强相互作用、渐近自由度的性质，人们对低能区的认识是相当有限的。另一方面，研究它对于理解我们“冻结”的宇宙是非常重要的。要从手征对称性和SU(3)对称性的角度来理解宇宙的性质，我们需要知道更多关于奇异性在强相互作用中的作用。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，以及它们是如何随着夸克和反夸克凝聚以及手征对称破缺的函数而变化的。为了研究这一点，我们计划研究低能限下的KN相互作用，并提供非常精确的数据，用于反手征对称破缺参数的测定。然而，由于达芬岛机器调试的延迟，我们被迫为本项目扩展了我们的策略，并扩展了我们的主题如下：1)精确测量介子衰变(al，英国)费米耦合常数的精确测定2)介子反常磁矩的测量(BNL，美国)弱相互作用研究和超越标准模型3)核介质中的深度束缚介子态(GSI，德国)核介质中的介子质量机会今年DAPHINE阶梯投入使用，我们将很快给出Kaonic原子的结果。

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.