Next-to-next-to-next-to-leading order QCD prediction for the top anti-top S-wave pair production cross section near threshold in e+ e- annihilation

TL;DR

This paper provides a third-order QCD calculation for top-anti-top pair production near threshold in electron-positron collisions, significantly reducing theoretical uncertainties and enhancing sensitivity to top quark properties.

Contribution

It introduces the third-order QCD prediction for top pair production near threshold, improving precision over previous models.

Findings

Reduced theoretical uncertainty in top pair production predictions

Enhanced sensitivity to top quark mass and width

First third-order QCD calculation for this process

Abstract

We present the third-order QCD prediction for the production of top-anti-top quark pairs in electron-positron collisions close to the threshold in the dominant S-wave state. We observe a significant reduction of the theoretical uncertainty and discuss the sensitivity to the top quark mass and width.