Differential cross section measurements of W bosons produced in association with jets in proton-proton collisions at $\sqrt{s}=8~\mathrm{TeV}$

Measurements of the differential cross-sections for a $\mathrm{W}(\rightarrow \mu\nu)$ boson produced in association with jets are presented here. The measurements use a data sample of proton-proton collisions at a center-of-mass energy of $8~\mathrm{TeV}$ that was recorded by the CMS detector at the LHC, and corresponds to an integrated luminosity of $19.6~\mathrm{fb}^{-1}$. The cross sections are reported as a function of jet multiplicity, the jet transverse momenta, and the scalar sum of jet transverse momenta ($H_\mathrm{T}$) for different jet multiplicities. Several angular correlation distributions among the jets and the muon are also examined, as well as the distributions of the average number of jets as a function of $H_\mathrm{T}$ and as a function of angular variables. Such angular distributions are sensitive to the modeling of higher order corrections, and to the modeling of parton emissions. The cross section measurements are then compared with the predictions from leading-order and multileg next-to-leading-order Monte Carlo generators, fixed order next-to-leading-order theoretical predictions for up to four jets as well as next-to-next-to-leading-order predictions of W+1 jet.