dorsal/arxiv
View SchemaProperties of the phi meson at finite temperature
| Authors | Kevin L. Haglin, Charles Gale |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9401003 |
| URL | https://arxiv.org/abs/nucl-th/9401003 |
| DOI | 10.1016/0550-3213(94)90519-3 |
| Journal | Nucl.Phys. B421 (1994) 613-634 |
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.
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"abstract": "We calculate the $\\phi$-meson propagator at finite temperature at the\none--loop order. The real and imaginary parts are studied separately in full\nkinematic ranges. From this activity we investigate how temperature affects\nsuch things as decay widths and dispersion relations. {}From here we estimate\nthe thermal rate of lepton pair radiation in a hadron gas proceeding through\n$K^{+}K^{-}\\to \\phi \\to \\ell^{+}\\ell^{-}$ and $\\pi\\rho\\to \\phi \\to\n\\ell^{+}\\ell^{-}$. We find several interesting things. From the dispersion\nrelations we learn the effective mass calculated this way increases with\ntemperature as does the partial width, but only slightly. At $T=200$ MeV, the\nmass increases by $\\sim$ 4 MeV and the partial width increases by 34\\%.\nPolarizations are indistinguishable for practical purposes.",
"arxiv_id": "nucl-th/9401003",
"authors": [
"Kevin L. Haglin",
"Charles Gale"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/0550-3213(94)90519-3",
"journal_ref": "Nucl.Phys. B421 (1994) 613-634",
"title": "Properties of the phi meson at finite temperature",
"url": "https://arxiv.org/abs/nucl-th/9401003"
},
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