重味物理是精确检验标准模型和探寻超出标准模型新物理信号的重要平台。最近在重味物理中出现了许多“反常”现象，如R(D)，R(D*)，R(K)，P5'等，它们被认为是新物理存在的迹象。本项目将结合来自B介子工厂、LHCb、Belle-II以及BEPC等实验结果，在现有工作的基础对上述反常现象进行系统研究，包括（1）在标准模型下对相关形状因子计算高阶、高幂次修正，降低理论不确定性；（2）结合实验数据，对相关衰变道进行模型相关或者模型无关的分析，探寻新物理可能存在的形式；（3）利用高精度的参数，构建新物理模型解释当前的反常，并模拟其在对撞机上的信号；（4）对其它类似衰变进行研究，如B介子四体衰变、重味重子半轻衰变等，以便检验新物理模型。希望上述理论结果为精确检验标准模型和寻找新物理提供理论支持。

Heavy flavor physics provides us an important plat for searching for the signals of new physics by testing the standard model with high precision. Very recently, there are some anomalies in heavy flavor physics, such as R(D)，R(D*)，R(K)，P5', which are regarded as possible hints of new physics. In this project, we shall study these anomalies comprehensively. Some topics are listed as： (1) We shall calculated the related form factors explicitly, with the high order and high power corrections; (2) Combining the experimental data, we shall analyze the decay modes with model dependence or independence approach, and find out the possible structure of new physics; (3) Within the parameters, we shall built the new physics models to explain the current anomalies, and study the signals in the colliders; (4) We shall study the similar decay modes, such as the B meson four-body semi-leptonic decays and heavy baryons semileptonic decays, so as to test the new physics models. The above results provide the essential theoretical support for the precision test of the SM and the efforts of searching for the signals or evidences of the new physics beyond the SM.