2008/08/22 by P. Fachini, P Fachini
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #nucl-ex
paper · pdf · doi:10.1088/0954-3899/35/10/104063
published as J.Phys.G35:104063,2008 · 4 pages, 8 figures, proccedings for QM2008
arxiv created 2008/08/22 · openalex publication_date 2008/09/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
he ρ0 production at high-pT (5.0 ≤ pT ≤ 10.0 GeV/c) measured in minimum bias p+p, Au+Au and central Au+Au collisions in the STAR detector are presented. The ρ0/π ratio measured in p+p is compared to PYTHIA calculations as a test of perturbative quantum chromodynamics (pQCD) that describes reasonably well particle production from hard processes. The ρ0 nuclear modification factor are also presented. In p+p collisions, charged pions and (anti-)protons are measured in the range 5.0 ≤ pT ≤ 15.0 GeV/c and the anti-particle to particle ratio and the baryon to meson ratios of these hadrons are discussed.