相对论重离子碰撞是在实验室产生新的物质形态—夸克物质的唯一可能手段，而重夸克偶素是探测夸克物质的敏感信号。相对论重离子对撞机RHIC和大型强子对撞机LHC的高能重离子碰撞提供了深入研究重夸克偶素和夸克物质信号的实验条件。本项目组在重夸克偶素方向有研究基础和国际影响。在过去工作的基础上，根据目前重夸克偶素研究的困惑和RHIC与LHC提供的新的实验条件，我们将在理论与实验两方面重点研究如下内容：1）在RHIC和LHC能区重夸克偶素产生与压低机制的确定；2）重夸克偶素产生与夸克物质耦合强弱的关联，即如何用重夸克偶素探测强耦合夸克胶子等离子体的性质；3）极端条件（例如高能量，激发态，高横动量，大质量，热密物质形成前极短时间，超强磁场等等）下重夸克偶素的产生。力争我们的工作对重夸克偶素与夸克物质的研究做出实质性的贡献。

Relativistic heavy ion collision is the only possible way to produce the new state of matter -- the socalled quark gluon plasma in laboratories, and quarkonia are a sensitive probe of the plasma. The high energy nuclear collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) provide the experimental condition to deeply study the plasma. Our group has a strong background in the field of quarkonium production, and our research is widely accepted by the international community. Based on the works we did before, and considering the current puzzles and the new experimental data, we will focus on the following subprojects: 1)the quarkonium production and suppression mechanisms at RHIC and LHC energies; 2)the correlation between the quarkonium production and the strongly coupled quark-gluon plasma created in the early stage of the collisions, namely how to probe the strongly coupled quark matter with quarkonia; 3)quarkonium production under extreme conditions (such as high energy, excited states, high transverse momentum, large mass, the short time period before the formation of quark matter, and extreme magnetic field).