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

, The ATLAS collaboration (2017) Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at √s=8 TeV. Journal of High Energy Physics (11). ISSN 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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of High Energy Physics
Additional Information:
© CERN for the benefit of the ATLAS collaboration 2017 Funded by SCOAP3
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
124027
Deposited By:
Deposited On:
12 Mar 2018 15:16
Refereed?:
Yes
Published?:
Published
Last Modified:
10 Sep 2021 02:38