  Understanding the polarisation structure and providing precise predictions
for multi-boson processes at the LHC is becoming urgent in the light of the
upcoming run-3 and high-luminosity data. The CMS and ATLAS collaborations have
already started using polarised predictions to perform template fits of the
data, getting access to the polarisation of W and Z bosons. So far, only
fully-leptonic decay channels have been considered in this perspective. The
natural step forward is the investigation of hadronic decays of electroweak
bosons. In this work, we compute NLO QCD corrections to the production and
decay of WZ pairs at the LHC in final states with two charged leptons and jets.
The calculation relies on the double-pole approximation and the separation of
polarised states at the level of Standard Model amplitudes. The presented
NLO-accurate results are necessary building blocks for a broad understanding
and precise modelling of polarised di-boson production in semi-leptonic decay
channels.
