Super-high Luminosity B Factory an A Its Physics

超高光度B工厂及其物理

• 批准号: 12440073
• 负责人: YAMAUCHI Masanori
• 金额: $ 5.25万
• 依托单位: High Energy Accelerator Research Organization (KEK)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12440073/
• 关键词: CP symmetry; SUSY; B mesor; ete-collision; luminosiay; FCNC; B Faceory; 粒子測定器; KEKB; Belle; CPの破れ; 衝突型加速器; フレーバー物理; CP非対称性

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>.

作为这项研究计划的结果，人们更加清楚地认识到，可以通过增加 B 工厂的光度来研究超对称性等新物理现象。我们进行了模拟研究，以研究实验对各种理论预测的敏感性，并且我们发现，寻找B→Dτv 中的带电希格斯粒子以 5000fb^<-1> 衰变相当于 LHC 实验中以 100fb^<-1> 直接搜索。此外，FCNC。如果用 3000fb^<-1> 测量前后不对称性，则 B 介子的衰变 B→K^*μμ 对 SUSY 粒子的贡献很敏感。加速器的研究使我们能够识别出。根据这一结果和KEKB加速器的经验，设计存储环以积累更高的束流必须解决的基本问题，得出的结论是，光度高于的对撞机。 10^<35> 探测器的研究也使我们能够确定必要的研发项目以进行超过 10^<35> 的更高光度的实验。