Electroweak-boson production from small to large collision systems with ALICE at the LHC

Recent measurements of the electroweak-boson production performed by the ALICE Collaboration are reported. The W-boson production was measured at midrapidity in pp collisions at $\sqrt{s}=13$ TeV, via the electronic decay of the boson. It was also measured in association with a hadron emitted back-to-back with respect to the electron. In heavy-ion collisions, the W- and Z-boson production was measured at forward rapidity in p–Pb collisions at $\sqrt{s_{\mathrm{N}\mathrm{N}}}=8.16$ TeV and Pb–Pb collisions at $\sqrt{s_{\mathrm{N}\mathrm{N}}}=5.02$ TeV, in their muonic decay channel. Measurements in pp collisions shed light on multiple parton interactions and colour reconnection mechanisms. In heavy-ion collisions the measurements of electroweak bosons allow to probe the initial state of the collision.