重味物理是粒子物理的重要研究领域之一，对于精确检验标准模型、研究CP破坏以及寻找新物理的间接证据有重要意义。欧洲大型强子对撞机LHC和北京正负电子对撞机BEPCII/BESIII等高能物理实验的运行使重味物理研究迈进精确检验时代。本项目将紧密结合最新高能物理实验和理论研究进展，在标准模型和新物理模型（主要指超对称模型、左右对称模型、双Higgs 二重态模型和331模型等）中，利用改善的微扰QCD、QCD因子化和软共线因子化等计算方法，研究新出现的实验测量与标准模型理论预言的差异问题、末态包含张量介子的两体非轻B(s)介子衰变、重味重子半轻衰变、重味介子/重子轻子味破缺衰变、D(s)介子衰变及其不同衰变之间的关联等。研究这些过程中不同的新物理效应，寻找对新物理敏感的衰变道和物理量，以期为实验上间接寻找新物理和区分鉴别不同新物理模型提供理论参考。

Heavy flavour physics is one of the important research fields of particle physics, and it's important to precisely test the Standard Model, study CP violation and search for indirect evidence of new physics. The running of high energy physics experiments, such as European Large Hadron Collider (LHC) and Beijing Electron Positron Collider (BEPCII/BESIII), let the study of heavy flavour physics enter an accurate test era. This project will work closely with the latest progresses of the high energy experiment and theory, in the Standard Model and new physics models (main refer to supersymmetry, left-right symmetric model, two-Higgs-doublet model as well as 331 model etc.), and study heavy flavour meson weak decays by using the improved calculation methods of perturbative QCD, QCD factorization and soft-collinear factorization etc. We will focus on new difference problems between the experimental measurements and the Standard Model predictions, the two-body non-leptonic B(s) meson decays involving a light tensor meson in the final states, the heavy flavour baryon semi-leptonic decays, the lepton flavor violating decays of heavy mesons/baryons and the D(s) meson decays. We will explore different new physics effect in these processes, look for decays and observables which are sensitive to new physics, and then provide valuable references for indirectly searching for new physics and distinguishing between different new physics model.