{ "id": "1009.5211", "version": "v2", "published": "2010-09-27T10:25:55.000Z", "updated": "2011-03-09T07:51:31.000Z", "title": "Towards finite density QCD with Taylor expansions", "authors": [ "Frithjof Karsch", "Bernd-Jochen Schaefer", "Mathias Wagner", "Jochen Wambach" ], "comment": "11 pages, 6 figures; minor clarifying changes, version to be published in Phys. Lett. B", "journal": "Phys.Lett.B698:256-264,2011", "doi": "10.1016/j.physletb.2011.03.013", "categories": [ "hep-ph", "hep-lat", "hep-th", "nucl-th" ], "abstract": "Convergence properties of Taylor expansions of observables, which are also used in lattice QCD calculations at non-zero chemical potential, are analyzed in an effective N_f = 2+1 flavor Polyakov-quark-meson model. A recently developed algorithmic technique allows the calculation of higher-order Taylor expansion coefficients in functional approaches. This novel technique is for the first time applied to an effective N_f = 2+1 flavor Polyakov-quark-meson model and the findings are compared with the full model solution at finite densities. The results are used to discuss prospects for locating the QCD phase boundary and a possible critical endpoint in the phase diagram.", "revisions": [ { "version": "v2", "updated": "2011-03-09T07:51:31.000Z" } ], "analyses": { "subjects": [ "12.38.Aw" ], "keywords": [ "finite density qcd", "flavor polyakov-quark-meson model", "higher-order taylor expansion coefficients", "lattice qcd calculations", "qcd phase boundary" ], "tags": [ "journal article" ], "publication": { "journal": "Physics Letters B", "year": 2011, "month": "Apr", "volume": 698, "number": 3, "pages": 256 }, "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "inspire": 871479, "adsabs": "2011PhLB..698..256K" } } }