2003/03/31 by E. G. Ferreiro, F. del Moral, C. Pajares · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Centrality #Cluster (spacecraft) #High-Energy Particle Collisions Research #Momentum (technical analysis) #Particle physics theoretical and experimental studies #Percolation (cognitive psychology) #Physics #Transverse plane #hep-ph
paper · pdf · doi:10.1103/physrevc.69.034901
published as Phys.Rev. C69 (2004) 034901 · 16 pages, RevTex, 4 postscript figures. Enhanced version. New figures
arxiv created 2003/10/20 · openalex publication_date 2004/03/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The behavior of the transverse momentum fluctuations with the centrality of the collision shown by the Relativistic Heavy Ion Collider data is naturally explained by the clustering of color sources. In this framework, elementary color sources---strings---overlap forming clusters, so the number of effective sources is modified. These clusters decay into particles with mean transverse momentum that depends on the number of elementary sources that conform each cluster, and the area occupied by the cluster. The transverse momentum fluctuations in this approach correspond to the fluctuations of the transverse momentum of the particles produced by the different clusters, and they behave essentially as the number of effective sources.