{ "id": "1006.0257", "version": "v1", "published": "2010-06-01T21:21:24.000Z", "updated": "2010-06-01T21:21:24.000Z", "title": "Quasi-Particle Theory of Shear and Bulk Viscosities of Hadronic Matter", "authors": [ "P. Chakraborty", "J. I. Kapusta" ], "comment": "45 pages", "journal": "Phys.Rev.C83:014906,2011", "doi": "10.1103/PhysRevC.83.014906", "categories": [ "nucl-th", "hep-ph" ], "abstract": "A theoretical framework for the calculation of shear and bulk viscosities of hadronic matter at finite temperature is presented. The framework is based on the quasi-particle picture. It allows for an arbitrary number of hadron species with point-like interactions, and allows for both elastic and inelastic collisions. Detailed balance is ensured. The particles have temperature dependent masses arising from mean field or potential effects, which maintains self-consistency between the equation of state and the transport coefficients. As an example, we calculate the shear and bulk viscosity in the linear $\\sigma$ model. The ratio of shear viscosity to entropy density shows a minimum in the vicinity of a rapid crossover transition, while the ratio of bulk viscosity to entropy density shows a maximum.", "revisions": [ { "version": "v1", "updated": "2010-06-01T21:21:24.000Z" } ], "analyses": { "subjects": [ "25.75.Nq", "51.20.+d", "11.10.Wx" ], "keywords": [ "bulk viscosity", "hadronic matter", "quasi-particle theory", "entropy density", "rapid crossover transition" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review C", "year": 2011, "month": "Jan", "volume": 83, "number": 1, "pages": "014906" }, "note": { "typesetting": "TeX", "pages": 45, "language": "en", "license": "arXiv", "status": "editable", "inspire": 857739, "adsabs": "2011PhRvC..83a4906C" } } }