{ "id": "0805.4820", "version": "v2", "published": "2008-05-30T18:08:22.000Z", "updated": "2008-11-28T15:43:24.000Z", "title": "Viscosity and thermodynamic properties of QGP in relativistic heavy ion collisions", "authors": [ "Vinod Chandra", "V. Ravishankar" ], "comment": "21 pages, 10 figures, Version to appear in EPJC", "journal": "Eur.Phys.J.C59:705-714,2009", "doi": "10.1140/epjc/s10052-008-0814-0", "categories": [ "nucl-th", "hep-ph", "hep-th" ], "abstract": "We study the viscosity and thermodynamic properties of QGP at RHIC by employing the recently extracted equilibrium distribution functions from two hot QCD equations of state of $O(g^5)$ and $O(g^6\\ln(1/g))$ respectively. After obtaining the temperature dependence of energy density, and entropy density, we focus our attention on the determination of shear viscosity for a rapidly expanding interacting plasma, as a function of temperature. We find that interactions significantly decrease the shear viscosity. They decrease the viscosity to entropy density ratio, $\\eta/{\\mathcal S}$ as well.", "revisions": [ { "version": "v2", "updated": "2008-11-28T15:43:24.000Z" } ], "analyses": { "subjects": [ "24.85.+p", "12.38.Mh", "05.20.Dd", "25.75.-q" ], "keywords": [ "relativistic heavy ion collisions", "thermodynamic properties", "shear viscosity", "entropy density ratio", "extracted equilibrium distribution functions" ], "tags": [ "journal article" ], "publication": { "journal": "European Physical Journal C", "year": 2009, "month": "Feb", "volume": 59, "number": 3, "pages": 705 }, "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "inspire": 787451, "adsabs": "2009EPJC...59..705C" } } }