First measurement of the $Z\to {\mu }^{+}{\mu }^{-}$ angular coefficients in the forward region of $pp$ collisions at $\sqrt{s}=13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +999

The first study of the angular distribution of ${\mu }^{+}{\mu }^{-}$ pairs produced in the forward rapidity region via the Drell-Yan reaction $pp \rightarrow γ^{*}/Z +X \rightarrow l^+ l^- + X…