@Article{LHCbCollaborationAaij_etal2018,
author="LHCb Collaboration (Aaij, R. et al
and Garcia Martin, L. M.
and Henry, L.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Valls, P.
and Ruiz Vidal, J.
and Sanchez Mayordomo, C.",
title="First observation of forward Z -> b(b)over-bar production in pp collisions at root s=8 TeV",
journal="Physics Letters B",
year="2018",
publisher="Elsevier Science Bv",
volume="776",
pages="430--439",
abstract="The decay Z -> b (b) over bar 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 root s = 8 TeV. The product of the Z production cross-section and the Z -> b (b) over bar 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 < eta < 4.2, with transverse momenta p(T) > 20 GeV and dijet invariant mass in the range 45 < m(jj) < 165 GeV. From a signal yield of 5462 +/- 763 Z -> b (b) over bar events, where the uncertainty is statistical, a production cross-section times branching fraction of 332 +/- 46 +/- 59 pb is obtained, where the first uncertainty is statistical and the second systematic. The measured significance of the signal yield is 6.0 standard deviations. This measurement represents the first observation of the Z -> b (b) over bar production in the forward region of pp collisions.",
optnote="WOS:000419641100058",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3461), last updated on Tue, 06 Feb 2018 16:04:49 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2017.11.066",
opturl="http://arxiv.org/abs/1709.03458",
opturl="https://doi.org/10.1016/j.physletb.2017.11.066",
archivePrefix="arXiv",
eprint="1709.03458",
language="English"
}