摘要
相对论性重离子碰撞可以在极短的时间里在原子核尺度范围内实现极高温度和极高密度。研究这种极端条件下的核物质特性,对于认识新的物质形态——夸克胶子等离子体、认识宇宙起源有重要的意义。高能重离子碰撞物理是核物理、粒子物理和天体物理交叉的前沿研究领域。相对论重离子对撞机(RHIC),大型强子对撞机(LHC)将于90年代末期建成,它们将提供前所未有的良机去研究超高温、超高密度的核物质。
Very high temperatures and nuclear densities can be generated in the interaction region within a very short period during the collision of muclei at very hihg energy. The study of the properties of nuclear matter at extreme conditions of temperature and density is crucial to explore the new form of matter, called quark-gluon plasma, and to understand the origin of the universe. The physics of high energy heavy ion collisions is now recognized as an exciting frontier of fundamental research, embracing fields like nuclear physics, particle physics and astrophysics. The construction of the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) will be completed in the late nineties, which will provide an unprecedentedly great opportunity to study the nuclear matter up to very high temperatures and densities.Since the study of high energy heavy ion collisions became one of the key projects of the NSFC in 1988, we have set up computer facilities for the exclusive use of high energy heavy ion physics and established the heavy ion research group. We proposed a new criterion, which is contrary to some conventional thinking, to compare the analysed results for pion interferometry from different experimental groups, and established for the first time the theory of multi-pion correlations; we developed a new approach for the study of collective flow through collective correlations, and established the new methodlolgy for azimuthal correlations of particle pair and high-order collective flow correlations. The progress mentioned above indicates that our program has been vigorously prusued in the forefront in the study of high energy heavy ion collisions.
出处
《中国科学基金》
CSCD
1993年第3期178-182,共5页
Bulletin of National Natural Science Foundation of China
