Measurement of the forward-backward asymmetry of high mass Drell-Yan lepton pairs at 13 TeV

A measurement of the forward-backward asymmetry ($A_{FB}$) of lepton pairs (dielectron and dimuon) produced via the Drell-Yan process in pp collisions at $\sqrt{s} = 13$ TeV is presented. The data sample corresponds to an integrated luminosity of 36 fb$^{-1}$ collected with the CMS detector at the LHC during 2016. The measurement of $A_{FB}$ is performed for dilepton masses above 150 GeV. Rather than traditional counting methods, the $A_{FB}$ is measured by fitting the dilepton angular distribution to reweigthed Monte Carlo samples. The $A_{FB}$ measurements as a function of dilepton mass are compared with the Standard Model predictions.