Journal article

Publication year: 2007

Journal: Physical Review C

Volume number: 76

Issue number: 4

ISSN: 0556-2813

eISSN: 1089-490X

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevC.76.041901

Publisher: American Physical Society

Abstract: 
The formation and suppression dynamics of J/Psi,chi(c), and Psi(') 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 root 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) over bar 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.

Harvard Citation style: Linnyk, O., Bratkovskaya, E., Cassing, W. and Stoecker, H. (2007) Charmonium dynamics in Au plus Au collisions at √s=200 GeV, Physical Review C, 76(4), Article 041901. https://doi.org/10.1103/PhysRevC.76.041901

APA Citation style: Linnyk, O., Bratkovskaya, E., Cassing, W., & Stoecker, H. (2007). Charmonium dynamics in Au plus Au collisions at √s=200 GeV. Physical Review C. 76(4), Article 041901. https://doi.org/10.1103/PhysRevC.76.041901