# First observation of forward Z→bb¯ production in pp collisions at s=8 TeV

04 December 2017

Abstract: The decay Z→bb¯ is reconstructed in pp collision data, corresponding to 2 fb −1 of integrated luminosity, collected by the LHCb experiment at a centre-of-mass energy of s=8 TeV. The product of the Z production cross-section and the Z→bb¯ branching fraction is measured for candidates in the fiducial region defined by two particle-level b -quark jets with pseudorapidities in the range 2.2<η<4.2 , with transverse momenta pT>20 GeV and dijet invariant mass in the range 45

Published in: Physics letters B (2017)