2024/06/22 by Nikolaos Kidonakis, Christopher Foster, Kidonakis, Nikolaos +1
Engineering · Physics and Astronomy · #Advanced Numerical Methods in Computational Mathematics #Electromagnetic Scattering and Analysis #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Numerical methods in engineering
paper · pdf · doi:10.48550/arxiv.2406.15773
openalex publication_date 2024/06/22 · openalex created_date 2024/06/26 · openalex updated_date 2026/07/28
We present theoretical calculations of higher-order QCD and electroweak corrections for the associated production of a top-antitop quark pair and a W boson (t tW production) at LHC energies. We show predictions for cross sections at approximate N3LO (aN3LO) 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 t tW production. We find significant enhancements from the higher-order corrections to the total and differential cross sections for this process.