26-31 July 2021
Mexico City
Mexico/General timezone
HADRON 2021 is over. Thanks for making it a success!
- hadron2021@nucleares.unam.mx
Contact information
Contribution Parallel
Mexico City
-
Hadron Decays, Production and Interactions
$\pi^0$-$\eta$-$\eta^{\prime}$ mixing from $V\!\rightarrow\!P\gamma$ and $P\!\rightarrow\!V\gamma$ decays
Speakers
- Rafel ESCRIBANO
Primary authors
- Rafel ESCRIBANO (Universitat Autonoma de Barcelona (UAB) and Institut de Fisica d'Altes Energies (IFAE))
Co-authors
- Mr. Emilio ROYO (UAB & IFAE)
Abstract
An enhanced phenomenological model including isospin-symmetry breaking is presented. The model is then used in a number of statistical fits to the most recent experimental data for the radiative transitions $V\rightarrow P\gamma$ ($V=\rho$, $K^*$, $\omega$, $\phi$ and $P=\pi$, $K$, $\eta$, $\eta^{\prime}$) and estimations for the mixing angles are obtained. The current experimental uncertainties allow for isospin-symmetry violations with a confidence level of approximately $2.5\sigma$.