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Angular coefficients in W+j production at the LHC with high precision

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arxiv 2204.12394 v2 pith:2ZINSXXL submitted 2022-04-26 hep-ph

classification hep-ph
keywords w-bosonangularcoefficientsmassmodelproductiontheorywork
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The extraction of the W-boson mass, a fundamental parameter of the Standard Model, from hadron-hadron collision requires precise theory predictions. In this regard, angular coefficients are crucial to model the dynamics of W-boson production. In this work, we provide, for the first time, angular coefficients at NNLO QCD + NLO EW accuracy for finite transverse momentum W-boson at the LHC. The corrections can reach up to 10% in certain regions of phase space. They are accompanied by a significant reduction of the scale uncertainty. This work should, besides providing reference values for theory-data comparison, provide state-of-the-art theory input for W-boson mass measurements.

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  1. Precise Standard-Model predictions for polarised Z-boson pair production and decay at the LHC

    hep-ph 2025-05 conditional novelty 7.0 of 10

    The authors deliver the first NNLO QCD plus NLO EW combination of predictions for polarised ZZ pairs at the LHC and validate them across five Monte Carlo codes and against ATLAS simulations.

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