{ "id": "1701.01398", "version": "v1", "published": "2017-01-05T17:49:17.000Z", "updated": "2017-01-05T17:49:17.000Z", "title": "Extended soft wall model with background related to features of QCD thermodynamics", "authors": [ "Rico Zöllner", "Burkhard Kampfer" ], "categories": [ "hep-ph", "hep-th" ], "abstract": "The soft wall model is extended to accommodate at the same time (i) approximately linear $\\rho$ meson Regge trajectories at zero temperature $T$, (ii) various options for the thermodynamics with reference to QCD (cross over or second-order transition or first-order transition at $T_c$), and (iii) the appearance of vector meson states at $T \\leq T_c$. While the vector meson masses display some modest model dependence very near to $T_c$, they stay below $T_c$ to good accuracy independent of the temperature, that is nearly as at $T=0$, thus being very consistent with the thermo-statistical models widely employed in analyses of the hadron yields in relativistic heavy-ion collisions in a region where baryon densitiy effects can be neglected and the vacuum hadron masses are used.", "revisions": [ { "version": "v1", "updated": "2017-01-05T17:49:17.000Z" } ], "analyses": { "keywords": [ "extended soft wall model", "qcd thermodynamics", "background", "vector meson masses display", "meson regge trajectories" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }