Theoretical predictions for $t{\bar t}W$ cross sections at approximate N$^3$LO
Abstract
We present theoretical calculations of higher-order QCD and electroweak corrections for the associated production of a top-antitop quark pair and a boson ( production) at LHC energies. We show predictions for cross sections at approximate NLO (aNLO) which include second-order and third-order soft-gluon corrections added to the exact NLO QCD+electroweak result. We compare our results to recent measurements from the LHC, and we find that our predictions provide improved agreement with the data. We also calculate the top-quark transverse momentum and rapidity distributions in production. We find significant enhancements from the higher-order corrections to the total and differential cross sections for this process.
Keywords
Cite
@article{arxiv.2406.15773,
title = {Theoretical predictions for $t{\bar t}W$ cross sections at approximate N$^3$LO},
author = {Nikolaos Kidonakis and Chris Foster},
journal= {arXiv preprint arXiv:2406.15773},
year = {2024}
}
Comments
5 pages, 2 figures; in proceedings of the 31st International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2024), 8-12 April 2024, Grenoble, France