$\tau$ lepton decays with production of strange scalar mesons $K_0^{\ast }(700)$ and $K_0^{\ast }(1430)$ in the extended NJL model

Abstract

The branching fractions of $\tau$ lepton decays with the production of strange scalar mesons both in the ground and first radially excited states $\tau \to {\nu }_{\tau }[K_0^{\ast }(700),K_0^{\ast }(1430)]$ and $\tau \to {\nu }_{\tau }[K_0^{\ast }(700)\pi ,K_0^{\ast }(1430)\pi ,K_0^{\ast }(700)K,K_0^{\ast }(700)\eta ]$ 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.

Comments: 9 pages, 5 figures