Electroweak Precision Measurements with Z Bosons at the LHC

Measurements of the forward-backward asymmetry in the neutral current annihilation process $q\bar{q} \rightarrow Z/\gamma^{*}\rightarrow \ell^{+}\ell^{-}$, where $\ell$ denotes a muon or electron, at the LHC are reported. The forward-backward asymmetry is measured as a function of the dilepton invariant mass yielding the effective weak mixing angle. The effective weak mixing angle values of $\sin^2\theta_{\mathrm{eff}}^{\mathrm{lept}}=0.2308 \pm 0.0012$ and $\sin^2\theta_{\mathrm{eff}}^{\mathrm{lept}}=0.2314 \pm 0.0011$ are obtained by the ATLAS and LHCb collaborations, respectively. The results are in agreement with the current world average.