Weak semileptonic decays of vector mesons in the NJL model

TL;DR

This paper calculates decay widths of vector mesons into semileptonic channels using the NJL model, providing theoretical predictions in the absence of experimental data.

Contribution

It applies the NJL model to predict decay widths of various vector mesons without introducing new parameters, offering theoretical insights.

Findings

Decay widths for $V o K( ho) l ar{ u}_l$ calculated

Predictions made without new parameter adjustments

Results serve as theoretical benchmarks

Abstract

The decay widths of $V \to K(\pi) l \bar{\nu}_l $ are calculated within the Nambu--Jona-Lasinio model, where $V=K^*, \rho, \omega, \phi$ and $l=\mu, e$. The results are obtained using the previously fixed model parameters without introducing any arbitrary parameters. The obtained results are considered as predictions due to the absence of experimental data.