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dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdel Khalek, S.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbi, B.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.description.abstractThis Letter reports the observation of a high transverse momentum Z → bb̅ signal in proton-proton collisions at √s = 8 TeV and 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 → bb̅ 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 σ_{Z → bb̅} ^{fid} = 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.en_US
dc.rightsCC BY 3.0 (Attribution)en_US
dc.rights© 2016 Elsevier B.V. or its licensors or contributorsen_US
dc.sourcePhysics Letters B
dc.subjectNext-to-leading-order (NLO)en_US
dc.subjectMomentum (Physics)en_US
dc.subjectJets (Nuclear physics)en_US
dc.titleMeasurement of the Cross Section of High Transverse Momentum Z → bb̅ Production in Proton-Proton Collisions at √s = 8 TeV with the ATLAS Detectoren_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, et al. 2014. "Measurement of the cross section of high transverse momentum Z → bb̅ production in proton-proton collisions at √s = 8 TeV with the ATLAS detector." Physics Letters B 738, doi:10.1016/j.physletb.2014.09.020en_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)

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