Leptonic Decays of Mesons in a Poincare- Covariant of a Quark Model

TL;DR

This paper employs a relativistic quark model based on point form quantum mechanics to analyze electroweak meson decays, fixing parameters with experimental data to improve understanding of meson properties.

Contribution

It introduces a Poincare-covariant quark model framework for meson decay analysis with parameters constrained by experimental results.

Findings

Accurate predictions of pion and rho meson decay rates

Parameter fixing enhances model reliability

Supports the validity of relativistic quark models in meson physics

Abstract

Using a relativistic constituent quark model based on point form of relativistic quantum mechanics with given set of degrees of freedom we investigate electroweak decays of the pion and rho mesons. All free parameters of quark model (the mass u(d) -quark and parameters which determines the confinement scale) are fixed by using relevant experimental data