PDF studies at LHCb

Measurements of the $Z$ and $W$ boson production cross-sections provide important tests of the Standard Model at the LHC energies and allow the Parton Density Functions of the proton to be constrained. Electroweak bosons are reconstructed in several leptonic decay channels, and their cross-sections are reported using data collected in the forward region by the LHCb experiment at a centre of mass energy of $\sqrt{s}$ = 7 TeV with an integrated luminosity of up to ∼ 1 fb$^{−1}$. Results are compared to NNLO predictions.