Decays of radially excited vector mesons ρ′ and ω′ in the extended NJL model

Abstract

The decay widths of ${\rho }^{\prime }\to \pi \pi ,\omega \pi ,\rho \eta$, ${\omega }^{\prime }\to \rho \pi ,\omega \eta$ and ${\pi }^{\prime }\to \rho \pi$ are recalculated within the extended Nambu–Jona-Lasinio (NJL) quark model. It is shown that the mass of ${\rho }^{\prime }(1450)$ meson derived in the NJL model agrees with the one given in Particle Data Group tables but significantly deviates from the recent result of CMD-3 collaboration. Comparisons with earlier theoretical results are presented.