Vector meson dominance in $\eta'\rightarrow\pi^0\gamma\gamma$ decay

Yaroslav Balytskyi

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arXiv · 1804.02607

Vector meson dominance in $\eta'\rightarrow\pi^0\gamma\gamma$ decay

Yaroslav Balytskyi

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Abstract

The decay $\eta'\rightarrow\pi^0\gamma\gamma$ is studied theoretically in the framework of the Vector Meson Dominance model (VMD). We find theoretically a significant contribution of the interference of $\omega-\rho$ and provide theoretical Dalitz-plots. Comparison with the experimental results of BES-III \cite{BES-III} is done. We find some tension between our predicted value and the observed result. Our calculations can be also checked using the data of GAMS-$4\pi$.

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Yaroslav Balytskyi. 2018-04-08. Vector meson dominance in $\eta'\rightarrow\pi^0\gamma\gamma$ decay. https://arxiv.org/abs/1804.02607

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