论文标题
限制碎片的中心性依赖性
Centrality dependence of limiting fragmentation
论文作者
论文摘要
我们研究了相对论重型离子对撞机（RHIC）和大型强子对撞机（LHC）在相对论重离子碰撞中的限制性碎裂假设的中心性依赖性有效性。在SQRT（S_NN）= 19.6、62.4、130、200、200、2760和5023 GEV上，使用每个能量的四个中心度削减了四个中心，对三源相对论扩散模型（RDM）中的Au-AU和PB-PB碰撞进行了现象学分析。测试了速度漂移函数的线性和非线性表达式，并讨论了它们的物理相关性。我们的结果与在整个能量范围内研究的中心的限制性裂缝构想兼容。发现碎片和火球源中的颗粒数分别取决于SQRT（S_NN），分别是对数和立方体式的。
We investigate the centrality-dependent validity of the limiting-fragmentation hypothesis in relativistic heavy-ion collisions at energies reached at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). A phenomenological analysis of Au-Au and Pb-Pb collisions within a three-source relativistic diffusion model (RDM) is performed at sqrt(s_NN) = 19.6, 62.4, 130, 200, 2760 and 5023 GeV using four centrality cuts at each energy. Linear and nonlinear expressions for the rapidity drift function are tested and their physical relevance is discussed. Our results are compatible with the limiting-fragmentation conjecture for the investigated centralities in the full energy range. The number of particles in the fragmentation and fireball sources are found to depend on sqrt(s_NN) logarithmically and cubic-logarithmically, respectively.
