top夸克自从在Tevatron实验上发现至今，便一直成为高能粒子物理的主要研究内容之一。特别是欧洲强子对撞机LHC的运行，为精确研究top夸克物理提供很好的实验平台。因此，在理论上对top夸克物理的计算精度也提出了迫切的要求。本项目将对top夸克及其相关物理过程作进一步的研究，将计算top夸克相关的强产生过程和衰变过程；在LHC平台上研究top夸克的电荷不对称性以及top夸克质量的精确确定。对于过程的QCD高阶修正，我们将利用严格的最大共形原理（PMC）确定过程最优的重整化能标从而消除重整化能标的不确定性。同时考虑电弱等其他修正的影响，从而得到更加精确的理论预言。通过与对撞机平台上的测量值作详细的对比，将对标准模型的检验和寻找超出标准模型的新物理具有极其重要的意义。

The detailed study of the top quark is one of the main subjects for high energy particle physics since it has been descovered by Tevatron. The top quark properties will be further probed during the LHC Run II. It is urgent that to improve the precision of the predictions for top quark properties. Our project will make a detailed study for the top quark and its related physical properties in hadron collisions. The top quark production and decay processes, the top quark charge asymmetry at the LHC and the accurate estimation for the top quark mass will be detailed study. We will apply the Principle of Maximum Conformality (PMC) to set the optimal renormalization scale, and then eliminate the renormalization scale ambiguities for higher-order QCD correction. Including the other corrections such as electroweak corrections, we can obtain accurate estimations for the top quark properties. The comparison of the accurate SM predictions with the data in hadron collisions will plays an important role for the test of the Standard Model (SM) and the search of the new physics beyond the Standard Model.