Speaker
Dr
Genaro Toledo Sanchez
(UNAM)
Description
We determine the magnetic dipole moment of the rho meson using preliminary data from the BaBar Collaboration for the $e^{+} e^{-} \to \pi^+ \pi^- 2 \pi^0$ process, in the center of mass energy range from 0.9 to 2.2 GeV. We describe the $\gamma^* \to 4\pi$ vertex using a vector meson dominance model, including all intermediate resonance contributions. We find that ${\mu}_\rho = 2.1 \pm 0.5 \: [e/2 m_\rho]$. In addition, we obtain the branching ratio $BR(\rho^0 \to \pi^+ \pi^- 2 \pi^0 ) = 1.7 \pm 0.6 \times 10^{-5} $.
Primary author
Dr
Genaro Toledo Sanchez
(UNAM)
Co-author
Dr
David Garcia Gudino
(UNAM)
