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

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 $K^{\ast +}(1430)\to K^{+}\gamma$ and $K^{\ast 0}(1430)\to K^0\gamma$ and find a good agreement with the data for the $K^{\ast +}(1430)$ case and a width considerably smaller than the upper bound measured for the $K^{\ast 0}(1430)$ meson.

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Cited by in corpus (6)

• The $X(3872)\to J/\psi \gamma$ decay in the $D{\bar{D}}^{\ast }$ molecular picture
• Photoproduction of the $f_2^{\prime }(1525)$ and $K_2^{\ast }(1430)$
• Radiative decays of $f_1(1285)$ as the $K^{\ast }\bar{K}$ molecular state
• Pseudotensor mesons as three-body resonances
• Strong decays of $a_0$, $f_0$, $f_2$, and $K_2^{\ast }$ resonances as dynamically generated states of two vector mesons
• Vector- and Pseudoscalar-baryon coupled channel systems