English

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

High Energy Physics - Phenomenology 2011-06-07 v1

Abstract

We study the decay of dynamically generated resonances from the interaction of two vectors into a γ\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)K+γK^{*+}(1430)\to K^+\gamma and K0(1430)K0γK^{*0}(1430)\to K^0\gamma and find a good agreement with the data for the K+(1430)K^{*+}(1430) case and a width considerably smaller than the upper bound measured for the K0(1430)K^{*0}(1430) meson.

Keywords

Cite

@article{arxiv.1009.4881,
  title  = {Decay of vector-vector resonances into $\gamma$ and a pseudoscalar meson},
  author = {R. Molina$^1$ and H. Nagahiro$^2$ and A. Hosaka$^3$ and E. Oset$^1$},
  journal= {arXiv preprint arXiv:1009.4881},
  year   = {2011}
}