2007/04/30 by Wen-Chao Zhang, W. C. Zhang, Y. Zeng +5 · 11 citations
Mathematics · Physics and Astronomy · #Astronomy #Centrality #Combinatorics #Geometry #High-Energy Particle Collisions Research #Mathematical physics #Mathematics #Nuclear physics #Particle physics theoretical and experimental studies #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Scaling #Spectral line #String (physics) #nucl-th
paper · pdf · doi:10.1103/physrevc.76.044910
published in Physical Review C 76(4) (American Institute of Physics) · 5 pages in revtex,7 eps figures included, will be appeared in Phys. Rev. C
arxiv created 2007/10/12 · openalex publication_date 2007/10/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
With the experimental data from STAR and PHENIX on the centrality dependence of the pT spectra of protons and antiprotons produced at midrapidity in Au+Au collisions at 200 GeV, we show that for protons and antiprotons there exists a scaling distribution independent of the colliding centrality. The scaling functions can also describe data from BRAHMS for both proton and antiproton spectra at y=2.2 and 3.2. The scaling behaviors are shown to be incompatible with the usual string fragmentation scenario for particle production.