The decay $\tau \to \pi\omega\nu$ in the extended NJL model

TL;DR

This paper calculates the decay width of tau to pi omega nu using the extended NJL model, including vector meson contributions, and finds results consistent with experimental data.

Contribution

It introduces an extended NJL model approach that accounts for intermediate vector mesons in tau decay calculations.

Findings

Partial decay width agrees with experimental measurements.

Spectral function matches observed data.

Intermediate vector mesons significantly influence decay dynamics.

Abstract

The decay width $\tau\to\pi\omega\nu$ in the framework of the extended NJL model is calculated. The contributions of the intermediate vector mesons $\rho(770)$ and $\rho'(1450)$ are taken into account. The computed partial width and the spectral function of the decay $\tau\to\pi\omega\nu$ are in satisfactory agreement with experimental data.