Theoretical results for top-pair and top+$W$ production

TL;DR

This paper provides advanced theoretical calculations for top-quark pair and top-W boson production, incorporating higher-order QCD and electroweak corrections to improve accuracy and agreement with experimental data.

Contribution

It introduces approximate N$^3$LO soft-gluon corrections and includes electroweak effects, enhancing the precision of top-quark production predictions.

Findings

Higher-order corrections are large and significant.

Corrections reduce scale dependence.

Results show improved agreement with experimental data.

Abstract

I present theoretical results for top-pair production as well as for the associated production of top quarks with $W$ bosons. Soft-gluon corrections from resummation are calculated through approximate N$^3$LO and added to fixed-order QCD results, and electroweak corrections are included at NLO. Top-quark transverse-momentum and rapidity distributions are also presented. In all cases the higher-order corrections are large, they reduce the scale dependence, and they improve agreement with recent data.