Different Contributions in omega pi0etagamma and rho pi0etagamma decays

Abstract

We examine the radiative omega pi0etagamma and rho pi0etagamma decays in a phenomenological framework. We consider the VMD mechanism, chiral loops, intermediate a0-meson and rho−omega mixing. We find the values of the decay width coming from the different amplitudes and compare the results with other studies. We observe that a0-meson intermediate state is very important in the case of the rho pi0etagamma decay and small in the other case for which VMD contribution is dominant.

arXiv comment13 pages, 4 figures, 3 tables

References in corpus (12)

• Resurrection of the Sigma Meson
• Rho-omega mixing, vector meson dominance and the pion form-factor
• Effective Lagrangian approach to vector mesons, their structure and decays${}^{\ast )}$
• Properties of the a0(980) meson
• Massive Spin-1 Field Chiral Lagrangian from an Extended Nambu-Jona-Lasinio Model of QCD
• On nature of scalar a_0(980) and f_0(980)-mesons
• Scalar sigma meson effects in rho and omega decays into pi0 pi0 gamma
• Study of the Process e+ e- --> pi0 pi0 gamma in c.m. Energy Range 600--970 MeV at CMD-2
• Chiral loops and VMD in the V->PPgamma decays
• Coupling constants g${}_{a_0\omega \gamma }$ and g${}_{a_0\rho \gamma }$ as derived from QCD sum rules
• $\omega -\rho$ Mixing and the $\omega \to \pi \pi \gamma$ Decay
• Scalar $a_0(980)$ meson in $\varphi \to {\pi }^0\eta \gamma$ decay

Cited by in corpus (1)

• rho(omega)-> pi^0 pi^0 gamma, rho(omega) -> eta pi^0 gamma decays in the local quark Nambu--Jona-Lasinio model