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Approximate N2LO and N3LO QCD predictions for tW production

Jia-Le Ding1, Hai Tao Li1,*, and Jian Wang1,2,†

  • *Contact author: haitao.li@sdu.edu.cn
  • †Contact author: j.wang@sdu.edu.cn
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Phys. Rev. D 114, 013002 – Published 6 July, 2026

DOI: https://doi.org/10.1103/srqk-f1bl

Abstract

We present high-precision predictions for associated tW production at the LHC that incorporate the next-to-next-to-leading-order hard and soft functions as well as the complete next-to-next-to-next-to-leading-order scale-dependent terms derived from the corresponding anomalous dimensions. These higher-order corrections, which dominate the full perturbative results, increase the next-to-leading-order cross section by more than 10%. Based on the comparison with ATLAS and CMS measurements, we directly extract the Cabibbo-Kobayashi-Maskawa matrix element |Vtb|=0.99±0.03(expt)±0.03(theor) without assuming unitarity, achieving a precision comparable with the current world average value.

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Phys. Rev. D 114, 013002– Published 6 July, 2026
  • Received 27 January 2026
  • Accepted 15 June 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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