Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at √s = 8 TeV Aaboud, M. Aguilar Saavedra, Juan Antonio Atlas Collaboration, / B physics Hadron-Hadron scattering (experiments) 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. 2024-10-14T07:50:08Z 2024-10-14T07:50:08Z 2017-11-10 journal article The ATLAS collaboration., Aaboud, M., Aad, G. et al. Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at √s = 8 TeV. J. High Energ. Phys. 2017, 62 (2017). https://doi.org/10.1007/JHEP11(2017)062 https://hdl.handle.net/10481/95894 10.1007/JHEP11(2017)062 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer Nature