Decay of vector-vector resonances into $γ$ and a pseudoscalar meson

Details Decay of vector-vector resonances into $γ$ and a pseudoscalar meson Decay of vector-vector resonances into $γ$ and a pseudoscalar meson

2010-09-24

arxiv.org/abs/1009.4881v1

Phys.Rev.D83:094030,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.83.094030

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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