The decay $\tau \rightarrow K^{0}K^{-}\nu_{\tau}$ in the extended Nambu-Jona-Lasinio model

TL;DR

This paper calculates the decay width of tau lepton decaying into kaons and a neutrino using the extended Nambu-Jona-Lasinio model, including vector meson contributions, and finds results consistent with experiments.

Contribution

It introduces a detailed calculation of the decay process within the extended Nambu-Jona-Lasinio model, accounting for intermediate vector mesons, which enhances understanding of tau decay mechanisms.

Findings

Results agree with experimental data

Includes contributions from $ ho$(770) and $ ho$(1450)

Provides both full and differential decay widths

Abstract

The full and differential widths of the decay $\tau \rightarrow K^{0}K^{-}\nu_{\tau}$ are calculated in the framework of the extended Nambu-Jona-Lasinio model. The contributions of the subprocesses with the intermediate vector mesons $\rho$(770) and $\rho$(1450) are taken into account. The obtained results are in satisfactory agreement with the experimental data.