Higher-order corrections for tt¯ production at high energies

Nikolaos Kidonakis

Read on arXiv

arXiv
2203.03698
Date
2022-03-07
Frontier
Energy Frontier (EF)
Topical groups
Submitted by
Nikolaos Kidonakis

Abstract

I present theoretical calculations of tt¯ production cross sections through aN3LO in proton-proton collisions. I show that soft-gluon corrections dominate the perturbative expansion not only for LHC energies but also for future collider energies through 100 TeV. Detailed results are presented for various collision energies. The K-factors are large and increase slowly with increasing energy. The scale uncertainties decrease greatly as we move to higher perturbative orders.