2007/05/30 by O. Linnyk, E. L. Bratkovskaya, E.L. Bratkovskaya +3 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.76.041901
published as Phys.Rev.C76:041901,2007 · 4 pages, 2 figures
arxiv created 2007/05/30 · openalex publication_date 2007/10/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The formation and suppression dynamics of J/\ensuremathΨ,\ensuremathχc, and \ensuremathΨ' mesons is studied within the hadron-string-dynamics (HSD) transport approach for Au+Au reactions at the top energy currently available at the BNL Relativistic Heavy Ion Collider (RHIC) of √(s)=200 GeV. Two prominent models, which have been discussed for more than a decade, are incorporated, i.e., the hadronic comover absorption and reformation model as well as the quark-gluon plasma (QGP) threshold scenario, and compared with available experimental data. Our studies demonstrate that both scenarios, which are compatible with experimental observation at SPS energies, fail severely at RHIC energies. This combined analysis, together with the underestimation of charm elliptic flow, proves that the dynamics of c,c quarks are dominated by partonic interactions in the strong QGP and can be neither modeled by hadronic interactions nor described appropriately by color screening alone.