  The production of jets in charged-current deep-inelastic scattering (CC DIS)
probes simultaneously the strong and the electroweak sectors of the Standard
Model; its measurement provides important information on the quark flavour
structure of the proton. We compute third-order (N3LO) perturbative QCD
corrections to this process, fully differential in the jet and lepton
kinematics. We observe a substantial reduction in the theory uncertainty, to
sub-percent level throughout the relevant kinematical range, thus enabling
precision phenomenology with jet observables.
