A measurement of b-hadron pair production is presented, based on a data set corresponding to an integrated luminosity of 11.4 fb−1of 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.].

The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, et al. (2017). Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at â s=8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(11), 62-1-62-51 [10.1007/JHEP11(2017)062].

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

G. L. Alberghi;L. Bellagamba;S. Biondi;D. Boscherini;A. Bruni;G. Bruni;G. D’amen;A. De Benedetti;S. De Castro;F. Fabbri;L. Fabbri;M. Franchini;O. Gabizon;A. Gabrielli;B. Giacobbe;F. Lasagni Manghi;L. Massa;A. Mengarelli;A. Polini;M. Rimoldi;L. Rinaldi;M. Romano;C. Sbarra;S. J. Sekula;N. Semprini-Cesari;R. Spighi;A. A. Talyshev;G. Ucchielli;S. Valentinetti;M. Villa;C. Vittori;G. Zobernig;A. Zoccoli;
2017

Abstract

A measurement of b-hadron pair production is presented, based on a data set corresponding to an integrated luminosity of 11.4 fb−1of 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.].
2017
The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, et al. (2017). Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at â s=8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(11), 62-1-62-51 [10.1007/JHEP11(2017)062].
The ATLAS collaboration; M. Aaboud; G. Aad; B. Abbott; J. Abdallah; O. Abdinov; B. Abeloos; S. H. Abidi; O. S. AbouZeid; N. L. Abraham; H. Abramowicz;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/622387
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