On the cross-section peaks for a heavy quark bound state

TL;DR

This paper analyzes the resonance peaks of heavy quark bound states using a Green function approach within a Coulombic model, comparing theoretical predictions to experimental data for Upsilon and J/psi particles.

Contribution

It introduces a Green function method for calculating resonance peaks in heavy quarkonium within a Coulombic framework and compares results with experimental observations.

Findings

Resonance peak positions align with experimental data for Upsilon and J/psi.

The Green function approach effectively models heavy quark bound states.

Comparison highlights strengths and limitations of Coulombic models.

Abstract

We discuss the values of resonance peaks of the cross-section of a heavy quark bound state obtained by means of a Green function method applied to a Coulombic model and compare the result to the Upsilon and J/psi data.