{ "id": "nucl-th/9401003", "version": "v1", "published": "1994-01-06T02:00:53.000Z", "updated": "1994-01-06T02:00:53.000Z", "title": "Properties of the phi meson at finite temperature", "authors": [ "Kevin L. Haglin", "Charles Gale" ], "comment": "13 pages in ReVTeX 3.0, 11 uuencoded Postscript figures (enclosed), MSUCL-910, McGill 93/41", "journal": "Nucl.Phys. B421 (1994) 613-634", "doi": "10.1016/0550-3213(94)90519-3", "categories": [ "nucl-th", "hep-ph" ], "abstract": "We calculate the $\\phi$-meson propagator at finite temperature at the one--loop order. The real and imaginary parts are studied separately in full kinematic ranges. From this activity we investigate how temperature affects such things as decay widths and dispersion relations. {}From here we estimate the thermal rate of lepton pair radiation in a hadron gas proceeding through $K^{+}K^{-}\\to \\phi \\to \\ell^{+}\\ell^{-}$ and $\\pi\\rho\\to \\phi \\to \\ell^{+}\\ell^{-}$. We find several interesting things. From the dispersion relations we learn the effective mass calculated this way increases with temperature as does the partial width, but only slightly. At $T=200$ MeV, the mass increases by $\\sim$ 4 MeV and the partial width increases by 34\\%. Polarizations are indistinguishable for practical purposes.", "revisions": [ { "version": "v1", "updated": "1994-01-06T02:00:53.000Z" } ], "analyses": { "keywords": [ "finite temperature", "phi meson", "dispersion relations", "properties", "lepton pair radiation" ], "tags": [ "journal article" ], "publication": { "publisher": "Elsevier", "journal": "Nucl. Phys. B" }, "note": { "typesetting": "RevTeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "inspire": 371218 } } }