{ "id": "1803.07945", "version": "v1", "published": "2018-03-21T14:37:16.000Z", "updated": "2018-03-21T14:37:16.000Z", "title": "Mean free path and shear viscosity in central $^{129}$Xe+$^{119}$Sn collisions below 100 MeV/nucleon", "authors": [ "H. L. Liu", "Y. G. Ma", "A. Bonasera", "X. G. Deng", "O. Lopez", "M. Veselský" ], "comment": "8 pages, 7 figures", "journal": "Physical Review C 96, 064604 (2017)", "doi": "10.1103/PhysRevC.96.064604", "categories": [ "nucl-th", "nucl-ex" ], "abstract": "Thermal and transport properties of hot nuclear matter formed in central $^{129}$Xe + $^{119}$Sn collisions at the Fermi energy are investigated using the isospin-dependent quantum molecular dynamical (IQMD) model. Temperature ($T$), average density ($\\rho$), chemical potential ($\\mu$), mean momentum ($P$), shear viscosity ($\\eta$) and entropy density ($s$) are obtained from the phase-space information. The mean free path ($\\lambda_{nn}$) and the in-medium nucleon-nucleon cross section ($\\sigma_{nn}$) in the highest compressible stage at different incident energies are deduced and compared with the experimental results from Phys. Rev. C $\\bf{90}$ (2014) 064602. The result shows that $\\lambda_{nn}$ and $\\sigma_{nn}$ have the same trend and similar values as the experimental results when the beam energy is greater than 40 MeV/u at maximum compressed state. Furthermore, the derived shear viscosity over entropy density ($\\eta/s$) shows a decreasing behaviour to a saturated value around $\\frac{3}{4\\pi}$ as a function of incident energy.", "revisions": [ { "version": "v1", "updated": "2018-03-21T14:37:16.000Z" } ], "analyses": { "keywords": [ "mean free path", "shear viscosity", "sn collisions", "mev/nucleon", "experimental results" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. C" }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }