A Role of the Axial Vector Mesons on the Photon Production in Heavy Ion Collisions and Their Relevant Decays

الأصل · EN

A role of the axial vector mesons, such as K₁ and a₁, on the emitted photon spectrum in hot hadronic matter is studied through the channels πρ→ a₁ → πγ and K ρ→ K₁ → K γ. They are shown to be dominant channels in this spectrum. This study is carried out with an effective chiral lagrangian which includes vector and axial-vector mesons and explains well their relevant decays simultaneously.