2008/04/18 by Wang Meijuan, Meijuan, Wang, Liu Lianshou +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications #nucl-th
paper · pdf · doi:10.48550/arxiv.0804.2932
4 pages, 2figures
arxiv created 2008/04/18 · openalex publication_date 2008/04/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is argued that the observation of anisotropic azimuthal distribution of final state particles alone is insufficient to show whether the formed matter at RHIC behaves like hydrodynamic flow. Examining the intrinsic interaction (or correlation) of the formed matter should provide more definite judgement. To the end, a spatial-dependent azimuthal multiplicity-correlation pattern is suggested. It shows clearly in the pattern that there are two kinds of interactions at the early stage of Au + Au collisions at \sqnn=200 GeV generated by RQMD with hadron re-scattering and AMPT with string melting. This is out of the expectation from the elliptic flow driven by anisotropic expansion.