@Article{ATLASCollaborationAad_etal2014, author="ATLAS Collaboration (Aad, G. et al and Cabrera Urban, S. and Castillo Gimenez, V. and Costa, M. J. and Fassi, F. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Hernandez Jimenez, Y. and Higon-Rodriguez, E. and Irles Quiles, A. and Kaci, M. and King, M. and Lacasta, C. and Lacuesta, V. R. and March, L. and Marti-Garcia, S. and Mitsou, V. A. and Moles-Valls, R. and Oliver Garcia, E. and Pedraza Lopez, S. and Perez Garcia-Esta{\~A}{\textpm}, M. T. and Romero Adam, E. and Ros, E. and Salt, J. and Sanchez Martinez, V. and Soldevila, U. and Sanchez, J. and Torro Pastor, E. and Valero, A. and Valladolid Gallego, E. and Valls Ferrer, J. A. and Vos, M.", title="Measurement of the cross section of high transverse momentum Z -> b(b)over-bar production in proton-proton collisions at root s=8 TeV with the ATLAS detector", journal="Physics Letters B", year="2014", publisher="Elsevier Science Bv", volume="738", pages="25--43", optkeywords="LHC; Boosted b(b)over-bar topologies", abstract="This Letter reports the observation of a high transverse momentum Z -> b (b) over bar signal in proton-proton collisions at root s = 8TeVand the measurement of its production cross section. The data analysed were collected in 2012 with the ATLAS detector at the LHC and correspond to an integrated luminosity of 19.5 fb(-1). The Z -> b (b) over bar decay is reconstructed from a pair of b-tagged jets, clustered with the anti- k(t) jet algorithm with R = 0.4, that have low angular separation and form a dijet with p(T) > 200 GeV. The signal yield is extracted from a fit to the dijet invariant mass distribution, with the dominant, multi-jet background mass shape estimated by employing a fully data-driven technique that reduces the dependence of the analysis on simulation. The fiducial cross section is determined to be sigma(fid)(Z -> b (b) over bar) = 2.02 +/- 0.20 (stat.) +/- 0.25 (syst.) +/- 0.06 (lumi.) pb = 2.02 +/- 0.33 pb, in good agreement with next-to-leading-order theoretical predictions.", optnote="WOS:000344624900005", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2018), last updated on Thu, 25 Dec 2014 23:54:33 +0000", issn="0370-2693", doi="10.1016/j.physletb.2014.09.020", opturl="http://arxiv.org/abs/arXiv:1404.7042", opturl="https://doi.org/10.1016/j.physletb.2014.09.020", archivePrefix="arXiv", eprint="arXiv:1404.7042", language="English" }