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- W4387121569 abstract "A bstract We compute the two-loop Quantum Chromodynamics (QCD) corrections to all partonic channels relevant for the production of an electroweak boson V = Z, W ± , γ * and a jet at hadron colliders. We consider the decay of a vector boson V to three partons V → $$ qoverline{q}g $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>q</mml:mi> <mml:mover> <mml:mi>q</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mi>g</mml:mi> </mml:math> , V → ggg with a vector and axial vector coupling in both channels, including singlet and non-singlet contributions. For the quark channel, we use a recent tensor decomposition and extend the calculation to $$ mathcal{O} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>O</mml:mi> </mml:math> ( ϵ 2 ). For the gluonic channel, we define a new tensor decomposition which allows us to compute the vector and the axial vector amplitudes at once and to perform the computation of the amplitudes to $$ mathcal{O} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>O</mml:mi> </mml:math> ( ϵ 2 ). We provide finite remainders of the helicity amplitudes analytically continued to all relevant scattering regions $$ qoverline{q} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>q</mml:mi> <mml:mover> <mml:mi>q</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> → Vg , qg → Vq and gg → Vg . The axial vector contribution to the gluon-induced channel completes the set of two-loop amplitudes for this process, while the extension to $$ mathcal{O} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>O</mml:mi> </mml:math> ( ϵ 2 ) represents the first step in the calculation of next-to-next-to-next-to-leading-order (N 3 LO) QCD corrections to Z +jet production at hadron colliders." @default.
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- W4387121569 date "2023-09-27" @default.
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- W4387121569 title "Two-loop helicity amplitudes for V+jet production including axial vector couplings to higher orders in ϵ" @default.
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- W4387121569 doi "https://doi.org/10.1007/jhep09(2023)192" @default.
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