Decay rates of quarkonia with NRQCD formalism using spectroscopic parameters of potential models

TL;DR

This paper investigates quarkonia decay rates using NRQCD formalism, deriving parameters from potential models, and compares theoretical predictions with experimental data.

Contribution

It introduces a method to determine NRQCD parameters from potential models and applies it to compute decay rates and spectra of quarkonia.

Findings

Decay rates agree with experimental data

Spectroscopic parameters are consistent across potential models

Provides a comprehensive comparison with other theories

Abstract

Decay rates of quarkonia are studied within the framework of NRQCD formalism. The basic parameters of the formalism have been obtained from different potential schemes studied for the spectra of quarkonia. We estimate the heavy quarkonia mass spectra, radiative and leptonic widths and compare them with other contemporary theoretical approaches and experimental results.