Measurement of the Z boson production in association with at least two b jets in pp collisions at √s = 13 TeV with CMS

The cross sections of the Z boson production in association with at least two b jets as a function of various kinematic variables are measured in pp collisions at √s = 13 TeV using 137 1/fb of data collected by the CMS experiment at LHC. The Z boson decays to electrons or muons are considered with leading (sub-leading) lepton transverse momentum pT > 35 (25) GeV and pseudorapidity |eta|< 2.4, and the invariant mass within 71 and 111 GeV. Jets are selected with pT > 30 GeV and |eta| < 2.4. The results are compared to various QCD calculations.