{ "id": "1402.5137", "version": "v1", "published": "2014-02-19T21:00:23.000Z", "updated": "2014-02-19T21:00:23.000Z", "title": "Matrix model for deconfinement in a SU(Nc) gauge theory in 2+1 dimensions", "authors": [ "Pedro Bicudo", "Robert D. Pisarski", "Elina Seel" ], "comment": "57 pages, 26 figures", "journal": "Phys. Rev. D 89, 085020 (2014)", "doi": "10.1103/PhysRevD.89.085020", "categories": [ "hep-ph" ], "abstract": "We use an effective matrix model to study deconfinement in a pure SU(Nc) gauge theory, without quarks, in d=2+1 dimensions. Expanding about a constant background A0 field we construct an effective potential for the eigenvalues of the thermal Wilson line for general Nc and in the large-Nc limit. The numerical results are presented using one, two, and four free parameters, which are determined by fitting directly to the lattice data for the pressure. The matrix model shows a good agreement with numerical lattice simulations for the pressure and the interaction measure, starting from the perturbative limit up to the critical temperature. For the pressure, the details of A0- dependent nonperturbative terms are relevant only in a narrow transition region below ~1.2 Td. This is also the range where the Polyakov loop deviates notably from one. In accordance with the lattice results we find that, up to a trivial factor Nc^2-1, there is only a mild dependence on the number of colors.", "revisions": [ { "version": "v1", "updated": "2014-02-19T21:00:23.000Z" } ], "analyses": { "subjects": [ "12.38.Mh", "11.10.Wx" ], "keywords": [ "matrix model", "gauge theory", "dimensions", "deconfinement", "constant background a0 field" ], "tags": [ "journal article", "kaleidoscope" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2014, "month": "Apr", "volume": 89, "number": 8, "pages": "085020" }, "note": { "typesetting": "TeX", "pages": 57, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1282140, "adsabs": "2014PhRvD..89h5020B" } } }