Exploring Timelike Region of QCD Exclusive Processes in Relativistic Quark Model

TL;DR

This paper studies semileptonic meson decays using a light-front constituent quark model constrained by QCD-inspired interactions, achieving results consistent with experimental data.

Contribution

It introduces a light-front quark model constrained by the variational principle for QCD-motivated interactions to analyze meson decay form factors and rates.

Findings

Numerical results agree well with experimental data.

The model effectively describes the timelike region of QCD processes.

Provides insights into the structure of semileptonic meson decays.

Abstract

We investigate the form factors and decay rates of exclusive $0^{-}\to0^{-}$ semileptonic meson decays using the constituent quark model based on the light-front quantization. Our model is constrained by the variational principle for the linear plus Coulomb interaction motivated by QCD. Our numerical results are in a good agreement with the available experimental data.