Updated predictions for toponium production at the LHC

Abstract

We provide an update on QCD predictions for top-quark pair production close to threshold including bound state effects at the Large Hadron Collider. We compute the top-quark pair invariant mass distribution $d\sigma /d{M}_{t\bar{t}}$, including Coulomb resummation for bound-state effects, as well as threshold resummation for emissions of soft and collinear gluons. We discuss uncertainty estimates and present a proposal for the use of these predictions in experimental analyses.

Comments: 10 pages LaTeX, 4 figures; 2 ancillary files with cross section predictions (Journal version)