2007/11/30 by Zhe Xu, Carsten Greiner, H. Stöcker +2 · 6 citations
Physics and Astronomy · Social Sciences · #Administrative Law and Governance #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.101.082302
published as Phys.Rev.Lett.101:082302,2008 · 4 pages, 6 figures, new results added in Figs 1, 2, and 3, version published in PRL
arxiv created 2008/10/22 · openalex publication_date 2009/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
The elliptic flow v2 and the ratio of the shear viscosity over the entropy density, eta/s, of gluon matter are calculated from the perturbative QCD (pQCD) based parton cascade Boltzmann approach of multiparton scatterings. For Au+Au collisions at sqrt[s]=200A GeV the gluon plasma generates large v2 values measured at the BNL Relativistic Heavy Ion Collider. Standard pQCD yields eta/s approximately 0.08-0.15 as small as the lower bound found from the anti-de Sitter/conformal field theory conjecture.