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arXiv · 1009.4881

Decay of vector-vector resonances into $\gamma$ and a pseudoscalar meson

R. Molina$^1$·H. Nagahiro$^2$·A. Hosaka$^3$·E. Oset$^1$
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Abstract

We study the decay of dynamically generated resonances from the interaction of two vectors into a $\gamma$ and a pseudoscalar meson. The dynamics requires anomalous terms involving vertices with two vectors and a pseudoscalar, which renders it special. We compare our result with data on $K^{*+}(1430)\to K^+\gamma$ and $K^{*0}(1430)\to K^0\gamma$ and find a good agreement with the data for the $K^{*+}(1430)$ case and a width considerably smaller than the upper bound measured for the $K^{*0}(1430)$ meson.

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R. Molina$^1$, H. Nagahiro$^2$, A. Hosaka$^3$, E. Oset$^1$. 2010-09-24. Decay of vector-vector resonances into $\gamma$ and a pseudoscalar meson. https://doi.org/10.1103/physrevd.83.094030

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