Πρω Vertex in Nuclear Matter
نویسنده
چکیده
Medium modifications of the πωρ vertex are analyzed in context of the ω → πγ and ρ → πγ decays in nuclear matter. A relativistic hadronic model with mesons, nucleons, and ∆(1232) isobars is applied. A substantial increase of the widths for the decays ω → πγ and ρ → πγ is found for photon virtualities in the range 0.3 − 0.6GeV. This enhancement has a direct importance for the description of dilepton yields obtained in relativistic heavy-ion collisions.
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