The gauge model of quark-meson interactions and its application to the meson radiative decays

TL;DR

This paper introduces a gauge model combining electromagnetic and strong interactions for low-energy hadron processes, extending the linear sigma-model with gauge and quark-meson interactions, and successfully predicts vector meson radiative decays.

Contribution

The paper develops a renormalizable gauge model based on U(1) x U(1) x SU(2) symmetry, extending the linear sigma-model to better analyze meson decays.

Findings

The model's predictions align well with experimental data on vector meson radiative decays.

The approach provides a consistent framework for low-energy hadron interactions.

Parameters of the model are discussed and validated against known processes.

Abstract

To analyze an electromagnetic and strong hadron processes at low energies, we consider the renormalizable model with the U0(1) x U(1) x SU(2) gauge symmetry. This approach is based on the linear sigma-model extended by the gauge and quark-meson interactions. Physical content and parameters of the model are discussed. Theoretical predictions for some radiative decays of vector mesons are in a good agreement with the experimental data.