2007/01/24 by Wei Li, W. Li · 1 citation
Physics and Astronomy · #Astrophysics #Atomic physics #Centrality #Charged particle #Cluster (spacecraft) #Context (archaeology) #Hadron #Hadronization #High-Energy Particle Collisions Research #Ion #Materials science #Nuclear physics #Particle (ecology) #Particle physics theoretical and experimental studies #Physics #Pseudorapidity #Quantum Chromodynamics and Particle Interactions #Range (aeronautics) #Statistics #nucl-ex
paper · pdf · doi:10.1088/0954-3899/34/8/s144
published as J.Phys.G34:S1005-1010,2007 · 5 pages, 4 figures, presented at the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, "Quark Matter 2006", Shanghai, China, November 14-20, 2006
arxiv created 2007/01/24 · openalex publication_date 2007/07/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We present results on two-particle angular correlations in p+p and Cu+Cu collisions over a broad range of (η, ϕ). The PHOBOS detector has a uniquely large angular coverage for inclusive charged particles. This allows for the study of correlations on both long- and short-range pseudorapidity scales. A complex two-dimensional correlation structure emerges which is interpreted in the context of a cluster model. The cluster size and its decay width are extracted from the two-particle pseudorapidity correlation function. Relative to p+p collisions, Cu+Cu reactions show a non-trivial decrease of cluster size with increasing centrality. These results may provide insight into the hadronization stage of the hot and dense medium created in heavy-ion collisions.