Semileptonic decays of $\rho$, $\omega$, $\varphi$, $\eta$ and ${\eta }^{\prime }$ mesons in ground and first radially excited states in the $U(3)\times U(3)$ NJL model

Abstract

In the extended $U(3)\times U(3)$ NJL model, semileptonic decays of $\rho$, $\omega$, $\varphi$, $\eta$ and ${\eta }^{\prime }$ mesons in both the ground and first radially excited states are described. Quark loops of the anomalous type are considered, which are based on the vertex $\eta \to VV$. The obtained results are in satisfactory agreement with the existing experimental data. In addition, a number of predictions for experimentally unmeasured decays of radially excited mesons are presented.

6 pages, 2 figures

References in corpus (1)

• The REDTOP experiment: Rare $\eta /{\eta }^{\prime }$ Decays To Probe New Physics