Toponium physics at the Large Hadron Collider

TL;DR

This paper investigates the formation of toponium states in top-antitop production at the LHC, emphasizing non-relativistic effects and bound-state dynamics using advanced QCD models.

Contribution

It introduces a detailed non-relativistic QCD framework to model toponium formation, providing more accurate predictions for near-threshold top-antitop production.

Findings

Predictions align with bound-state dynamics expectations.

Contrasts with pseudo-scalar toy models.

Highlights importance of non-relativistic corrections.

Abstract

We examine toponium formation effects in top-antitop pair production at the LHC, focusing on the near-threshold region where non-relativistic corrections are relevant. We discuss their modelling using non-relativistic QCD Green's functions, and show that predictions reproduce features expected from bound-state dynamics, in contrast to pseudo-scalar toy models.