{ "id": "0811.1571", "version": "v4", "published": "2008-11-10T20:51:32.000Z", "updated": "2009-12-03T18:47:23.000Z", "title": "Transport Coefficients of Hadronic Matter near $T_c$", "authors": [ "Jacquelyn Noronha-Hostler", "Jorge Noronha", "Carsten Greiner" ], "comment": "Version published in Physical Review Letters", "journal": "Phys.Rev.Lett.103:172302,2009", "doi": "10.1103/PhysRevLett.103.172302", "categories": [ "nucl-th", "hep-ph", "hep-th" ], "abstract": "A hadron resonance gas model including all known particles and resonances with masses $m<2$ GeV and an exponentially rising density of Hagedorn states for $m>2$ GeV is used to obtain an upper bound on the shear viscosity to entropy density ratio, $\\eta/s\\approx1/(4\\pi)$, of hadronic matter near $T_c$. We found a large trace anomaly and small speed of sound near $T_c$, which agree well with recent lattice calculations. We comment on the bulk viscosity to entropy density ratio close to $T_c$.", "revisions": [ { "version": "v4", "updated": "2009-12-03T18:47:23.000Z" } ], "analyses": { "subjects": [ "24.85.+p", "25.75.Dw", "24.10.Pa", "12.38.Mh" ], "keywords": [ "hadronic matter", "transport coefficients", "hadron resonance gas model", "entropy density ratio close", "bulk viscosity" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2009, "month": "Oct", "volume": 103, "number": 17, "pages": 172302 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 802023, "adsabs": "2009PhRvL.103q2302N" } } }