Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at √s=8 TeV



Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2841 more authors) (2017) Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at √s=8 TeV JOURNAL OF HIGH ENERGY PHYSICS, 2017 (11). 62-. ISSN 1029-8479, 1029-8479

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Abstract

A measurement of b-hadron pair production is presented, based on a data set corresponding to an integrated luminosity of 11.4 fb−1 of proton-proton collisions recorded at s=8 TeV with the ATLAS detector at the LHC. Events are selected in which a b-hadron is reconstructed in a decay channel containing J/ψ → μμ, and a second b-hadron is reconstructed in a decay channel containing a muon. Results are presented in a fiducial volume defined by kinematic requirements on three muons based on those used in the analysis. The fiducial cross section is measured to be 17.7 ± 0.1(stat.) ± 2.0(syst.) nb. A number of normalised differential cross sections are also measured, and compared to predictions from the Pythia8, Herwig++, MadGraph5_aMC@NLO+Pythia8 and Sherpa event generators, providing new constraints on heavy flavour production.[Figure not available: see fulltext.].

Item Type: Article
Additional Information: 49 pages in total, author list starting page 28, 10 figures, 1 table, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2015-04/
Uncontrolled Keywords: B physics, Hadron-Hadron scattering (experiments)
Depositing User: Symplectic Admin
Date Deposited: 18 Dec 2017 09:09
Last Modified: 23 May 2026 00:46
DOI: 10.1007/JHEP11(2017)062
Open Access URL: http://doi.org/10.1007/JHEP11(2017)062
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3014285
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