Super-high Luminosity B Factory an A Its Physics

由于这项研究计划，人们越来越清楚地认识到，可以通过增加B工厂的亮度来研究新的物理学，如超对称性。模拟研究了实验对各种理论预言的敏感性，发现在B→Dτv衰变中寻找带电Higgs粒子的过程<-1>与在LHC实验中直接寻找带电Higgs粒子的过程是等价的<-1>。当用3000 fb ^测量前后不对称性时，发现B介子的FCNC衰变B→K^* μ μ对超对称粒子的贡献很敏感<-1>。加速器的研究使我们能够确定必须解决的基本问题，以设计储存环来积累更高的束流。根据这一结果和KEKB加速器的经验，我们得出结论：亮度大于10^<35>.此外，探测器的研究使我们能够确定必要的R&amp;D项目，以在超过10^的更高光度下进行实验<35>。

As a consequence of this research program, it became clearer that new physics such as supersymmetry could be investigated by increasing the luminosity of the B factory. Simulation studies were performed to investigate the experimental sensitivities to various theoretical predictions, and we found that the search for charged Higgs particle in B→Dτv decays with 5000fb^<-1> is equivalent to the direct search in LHC experiment with 100fb^<-1>. Also, the FCNC decays of B meson, B→K^*μμ, is found to be sensitive to the contribution of SUSY particles, if the forward-backward asymmetry is measured with 3000fb^<-1>. The research of the accelerator enabled us to identify the fundamental issues that have to be solved to design the storage ring to accumulate much higher beam current. Based on this result and the experience at the KEKB accelerator, it is concluded that a collider with the luminosity higher than 10^<35>. Also the research of the detector enabled us to identify the necessary R&D items to carry out an experiment at the higher luminosity beyond 10^<35>.