论文标题
在2-8 GEV/核子中使用质子流中质子流探测核物质相变的边界
Probing the boundary of phase transition of nuclear matter using proton flows in heavy-ion collisions at 2-8 GeV/nucleon
论文作者
论文摘要
基于相对论的传输模型ART的状态扩展，以通过使用MIT袋模型进行相变的状态，研究了相对论重型离子碰撞中形成的密集核物质的相变的性能。质子的侧面和定向流是在2、4、6和8 GEV/核的光束能量中使用AU + AU碰撞中不同状态方程计算的。与存在的AGS实验数据相比，一阶相变的边界大致限制在饱和密度的2.5-4倍范围内，温度约为64-94 MeV。此类限制对于正在进行的RHIC束能量SCAN-II程序可用于研究QCD问题相图。
Based on the relativistic transport model ART with the hadronic equation of state extended to have a phase transition via the use of the MIT bag model, properties of phase transition of dense nuclear matter formed in relativistic heavy-ion collisions are investigated. Proton sideward and directed flows are calculated with different equation of states in Au + Au collisions at beam energies of 2, 4, 6 and 8 GeV/nucleon. Compared with AGS experimental data in existence, the boundary of first-order phase transition is roughly confined, i.e., in the range of 2.5-4 times saturation density with temperature about 64-94 MeV. Such constraints are useful for ongoing RHIC Beam Energy Scan-II program to study the QCD matter phase diagram.
