Regular Article - Theoretical Physics
Doubly-polarized WZ hadronic production at NLO QCD+EW: calculation method and further results
Faculty of Fundamental Sciences, Phenikaa University, 12116, Hanoi, Vietnam
2 Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
Accepted: 12 November 2022
Published online: 7 December 2022
The doubly-polarized production of pairs at the Large Hadron Collider (LHC) is presented at next-to-leading order (NLO) accuracy both for the electroweak (EW) and QCD corrections, including a detailed description of the calculational method using the double-pole approximation. Numerical results at the 13 TeV LHC are presented in particular for the case in the channel using ATLAS fiducial cuts and for polarized distributions defined in the WZ center-of-mass system. The NLO EW corrections relative to the NLO QCD predictions are found to be smaller than 5% in most kinematic distributions, but can reach the level of 10% in some distributions such as lepton transverse momentum distributions or rapidity separation between the electron and the Z boson. EW corrections are not uniform for different polarizations. A comparison between the new ATLAS measurement of polarization fractions to our theoretical prediction is presented.
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