$\tau$ lepton decays with production of strange scalar mesons $K^*_0(700)$ and $K^*_0(1430)$ in the extended NJL model

TL;DR

This paper predicts the branching fractions of tau lepton decays involving strange scalar mesons using an extended NJL model, providing theoretical results for future experimental validation.

Contribution

It introduces calculations of tau decay branching ratios involving strange scalar mesons within an extended NJL model, including excited states, as novel theoretical predictions.

Findings

Predicted branching fractions for tau decays with $K^*_0(700)$ and $K^*_0(1430)$.

Provided decay rate estimates for various meson production channels.

Results serve as theoretical benchmarks for upcoming experiments.

Abstract

The branching fractions of $\tau$ lepton decays with the production of strange scalar mesons both in the ground and first radially excited states $\tau \to \nu_\tau [K^*_0(700), K^*_0(1430)]$ and $\tau \to \nu_\tau [K^*_0(700)\pi, K^*_0(1430)\pi, K^*_0(700) K, K^*_0 (700)\eta]$ are calculated in the extended $U(3) \times U(3)$ chiral quark NJL model. All mesons are considered as $q\bar{q}$ systems. The obtained results should be considered as predictions for future experiments.