%0 Journal Article %T Measurement of forward Z -> e(+)e(-) production at root s=8 TeV %A LHCb Collaboration (Aaij, R. et al %A Martinez-Vidal, F. %A Oyanguren, A. %A Ruiz Valls, P. %A Sanchez Mayordomo, C. %J Journal of High Energy Physics %D 2015 %V 05 %N 5 %I Springer %@ 1029-8479 %G English %F LHCbCollaborationAaij_etal2015 %O WOS:000354977800001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2236), last updated on Thu, 11 Jun 2015 20:10:59 +0000 %X A measurement of the cross-section for Z-boson production in the forward region of pp collisions at 8 TeV centre-of-mass energy is presented. The measurement is based on a sample of Z -> e(+)e(-) decays reconstructed using the LHCb detector, corresponding to an integrated luminosity of 2.0 fb(-1). The acceptance is defined by the requirements 2.0 < eta < 4.5 and p(T) > 20 GeV for the pseudorapidities and transverse momenta of the leptons. Their invariant mass is required to lie in the range 60-120 GeV. The cross-section is determined to be sigma(pp -> Z -> e(+)e(-)) = 93.81 +/- 0.41(stat) +/- 1.48(syst) +/- 1.14(lumi) pb, where the first uncertainty is statistical and the second reflects all systematic effects apart from that arising from the luminosity, which is given as the third uncertainty. Differential cross-sections are presented as functions of the Z-boson rapidity and of the angular variable phi*, which is related to the Z-boson transverse momentum. %K Electroweak interaction %K QCD %K Forward physics %K Hadron-Hadron Scattering %K proton-proton scattering %R 10.1007/JHEP05(2015)109 %U http://arxiv.org/abs/1503.00963 %U https://doi.org/10.1007/JHEP05(2015)109 %P 109-21pp