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arXiv · 2204.12394

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

Mathieu Pellen·Rene Poncelet·Andrei Popescu·Timea Vitos
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Abstract

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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Mathieu Pellen, Rene Poncelet, Andrei Popescu, Timea Vitos. 2022-04-26. Angular coefficients in W+j production at the LHC with high precision. https://doi.org/10.1140/epjc%2Fs10052-022-10641-1

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