The decays $\tau \to \nu_{\tau} (K^{*}(892), K^{*}(1410), K_1(1270), K_1(1650), a_1(1260), a_1(1640))$ in the Extended Nambu-Jona-Lasinio Model

TL;DR

This paper calculates tau lepton decays into various mesons using the extended Nambu-Jona-Lasinio model, providing theoretical predictions that align with existing data and offering new predictions for unmeasured decays.

Contribution

It applies the extended NJL model to compute tau decay widths into multiple mesons, including predictions for decays lacking experimental data.

Findings

Calculated decay widths agree with experimental data for some channels.

Predicted decay widths for unmeasured channels serve as testable future predictions.

Validated the extended NJL model's effectiveness in tau decay calculations.

Abstract

The decays $\tau \to \nu_{\tau} (K^{*}(892), K^{*}(1410), K_1(1270), K_1(1650), a_1(1260), a_1(1640))$ in the extended NJL model are calculated. The results obtained for the decays are $\tau \to \nu_{\tau} (K^{*}(892), K^{*}(1410), K_1(1270))$ in a satisfactory agreement with the experimental data. There are no experimental data for other types of decay. Therefore, the obtained results should be considered as predictions for further experiments.