Study on Toponium: Spectrum and Associated Processes

TL;DR

This paper investigates the toponium spectrum using a potential model with screened effects, deriving transition rates, decays, and production mechanisms, grounded in lattice QCD data.

Contribution

It introduces a detailed calculation of toponium spectrum incorporating screened effects and derives related transition and decay processes based on lattice QCD inputs.

Findings

Toponium spectrum calculated with screened potential effects.

Derived E1 transition rates, decay widths, and production cross sections.

Results align with lattice QCD and potential model predictions.

Abstract

In this paper, we calculate the toponium spectrum in the potential model with the screened effects. Coulombic part is dominant for toponium, and the coefficient of the Coulomb potential is chosen from lattice QCD calculations at an infinite quark mass in accord with the ultrasoft scale choice. We also derive the relative E1 transitions, decays, and production.