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

Yun Chang Shin·Myung Ki Cheoun·K. S. Kim·T. K. Choi
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Abstract

A role of the axial vector mesons, such as $K_1$ and $a_1$, on the emitted photon spectrum in hot hadronic matter is studied through the channels $πρ\to a_1 \to πγ$ and $K ρ\to K_1 \to K γ$. 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.

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Yun Chang Shin, Myung Ki Cheoun, K. S. Kim, T. K. Choi. 2001-08-06. A Role of the Axial Vector Mesons on the Photon Production in Heavy Ion Collisions and Their Relevant Decays. https://arxiv.org/abs/nucl-th/0108009

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