Journal of High Energy Physics > 2017 > 2017 > 11 > 1-51
Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at s=8 $$ \sqrt{s}=8 $$ TeV
Source
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 $$ \sqrt{s}=8 $$ 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.
Identifiers
journal e-ISSN : | 1029-8479 |
DOI | 10.1007/JHEP11(2017)062 |
Authors
The ATLAS collaboration
- University Politehnica Bucharest, Bucharest, Romania
- Universidade Nova de Lisboa, Dep Fisica and CEFITEC of Faculdade de Ciencias e Tecnologia, Caparica, Portugal
- Centre National de l’Energie des Sciences Techniques Nucleaires, Rabat, Morocco
- CERN, Geneva 23, Switzerland
B. Abbott
- University of Oklahoma, Homer L. Dodge Department of Physics and Astronomy, Norman, United States of America