Publication: Two-loop QCD corrections to the V $\to q\bar{q}g$ helicity amplitudes with axial-vector couplings
Two-loop QCD corrections to the V $\to q\bar{q}g$ helicity amplitudes with axial-vector couplings
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Gehrmann, T., Peraro, T., & Tancredi, L. (2023). Two-loop QCD corrections to the V $\to q\bar{q}g$ helicity amplitudes with axial-vector couplings. Journal of High Energy Physics, 2023(2), 41. https://doi.org/10.1007/jhep02(2023)041
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We compute the two-loop corrections to the helicity amplitudes for the coupling of a massive vector boson to a massless quark-antiquark pair and a gluon, accounting for vector and axial-vector couplings of the vector boson and distinguishing isospin non-singlet and singlet contributions. A new four-dimensional basis for the decomposition of the amplitudes into 12 invariant tensor structures is introduced. The associated form factors are then computed up to two loops in QCD using dimensional regularization. After performing renormaliza
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- Peraro, Tiziano
- Tancredi, Lorenzo
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Gehrmann, T., Peraro, T., & Tancredi, L. (2023). Two-loop QCD corrections to the V $\to q\bar{q}g$ helicity amplitudes with axial-vector couplings. Journal of High Energy Physics, 2023(2), 41. https://doi.org/10.1007/jhep02(2023)041
