重味强子物理与量子色动力学

量子色动力学是粒子物理标准模型的基石之一。与重强子相关的物理对微扰和非微扰量子色动力学的深入研究和对超出标准模型的新物理的研究都有重要意义。在实验上，B 工厂和BEPC等正负电子对撞机，以及Tevatron 和LHC等强子-强子对撞机已在重强子物理领域积累了大量数据，为重强子物理和量子色动力学的研究提供了实验基础。本项目将密切结合实验，开展重强子物理和量子色动力学的研究，包括粲偶素和底偶素、B介子和其它重味介子、以及近年来所发现的XYZ等新强子态的物理性质的研究。在理论上主要涉及与重夸克相关的有效理论的研究。本项目将对量子色动力学的辐射修正和相对论效应进行深入研究，探讨粲偶素与底偶素以及其它重味强子的产生和衰变机制,探讨重强子物理中处理QCD辐射修正的方法及其物理效应。

Quantum chromodynamics is one of the bases of the standard model of particle physics. The study of heavy hadron physics and quantum chromodynamics is an important subject in the frontiers of particle physics, not only for the test of the standard model but also for the investigation of physics beyond the standard model. Experimentally, the high energy colliders like the Tevatron,the B factories, and the BEPC have collected a large number of data samples in heavy hadron physics, and in particular the LHC is collecting more data. Based on these measurements we will make investigations for related heavy hadron physics and quantum chromodynamics, including topics on charmonium and bottomonium, the B meson, other heavy flavor mesons, and the new XYZ hadrons discovered in recent years. Theoretically, we will study heavy quark effective theories,such as the nonrelativistic QCD factorization and other approaches, and put stress on QCD radiative corrections and relativistic corrections. We are aimed at resolving the conflicts between new experiments and current theoretical results, and clarifying the production and decay mechanisms of heavy quarkonia and other heavy flavor hadrons in hadron-hadron collision, e+e- annihilation and B meson decays.