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Scalar sigma meson effects in radiative rho^0-meson decays

High Energy Physics - Phenomenology 2009-11-10 v1
Authors: A. Gokalp , S. Solmaz , O. Yilmaz
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Abstract

We study the radiative ρ0→π+π−γ\rho^0\to \pi^+\pi^-\gamma and ρ0→π0π0γ\rho^0\to \pi^0\pi^0\gamma decays and we calculate their branching ratios using a phenomenological approach by adding to the amplitude calculated within the framework of chiral perturbation theory and vector meson dominance the amplitude of σ\sigma-meson intermediate state. Our results for the branching ratios are in good agreement with the experimental values.

Keywords

radiative rho decays sigma meson branching ratios chiral perturbation theory vector meson dominance

Cite

@article{arxiv.hep-ph/0302129,
  title  = {Scalar sigma meson effects in radiative rho^0-meson decays},
  author = {A. Gokalp and S. Solmaz and O. Yilmaz},
  journal= {arXiv preprint arXiv:hep-ph/0302129},
  year   = {2009}
}

Comments

to be published in Phys. Rev. D

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