{ "id": "1410.4206", "version": "v1", "published": "2014-10-15T20:03:00.000Z", "updated": "2014-10-15T20:03:00.000Z", "title": "Dilepton Production in Transport-based Approaches", "authors": [ "Janus Weil", "Stephan Endres", "Hendrik van Hees", "Marcus Bleicher", "Ulrich Mosel" ], "comment": "4 pages, 3 figures, PANIC 2014 proceedings", "categories": [ "nucl-th", "hep-ph", "nucl-ex" ], "abstract": "We investigate dilepton production in transport-based approaches and show that the baryon couplings of the $\\rho$ meson represent the most important ingredient for understanding the measured dilepton spectra. At low energies (of a few GeV), the baryon resonances naturally play a larger role and affect already the vacuum spectra via Dalitz-like contributions, which can be captured well in an on-shell-transport scheme. At higher energies, the baryons mostly affect the in-medium self energy of the $\\rho$, which is harder to tackle in transport models and requires advanced techniques.", "revisions": [ { "version": "v1", "updated": "2014-10-15T20:03:00.000Z" } ], "analyses": { "keywords": [ "dilepton production", "transport-based approaches", "in-medium self energy", "measured dilepton spectra", "transport models" ], "publication": { "doi": "10.3204/DESY-PROC-2014-04/173" }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1322579, "adsabs": "2014arXiv1410.4206W" } } }