On the decay widths of radially excited scalar meson $K^*_0(1430)$ in view of new experimental data

TL;DR

This paper uses an extended chiral quark model to analyze the decay widths of scalar mesons, particularly $K^*_0(1430)$, and finds results consistent with recent BaBar data, differing from previous PDG values.

Contribution

It provides a theoretical analysis of scalar meson decays using an extended $U(3) imes U(3)$ NJL model, aligning with new experimental data.

Findings

Results agree with recent BaBar measurements

Decay widths differ from PDG values

Supports the extended NJL model's applicability

Abstract

Decays of scalar mesons $K^*_0(800) \to K\pi$ and $K^*_0(1430) \to K\pi, K \eta, K \eta', K_1 \pi$ are described in the extended $U(3 ) \times U(3)$ Nambu - Jona-Lasinio chiral quark model. The obtained results are in satisfactory agreement with the new experimental data obtained by the BaBar collaboration, which markedly differ from the existing values in the PDG.