Measurement of $b$-hadron pair production with the ATLAS detector in proton-proton collisions at $\sqrt{s}=8$ TeV - INSPIRE

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Measurement of $b$ -hadron pair production with the ATLAS detector in proton-proton collisions at $\sqrt{s}=8$ TeV

ATLAS

Collaboration

May 9, 2017

49 pages

Published in:

JHEP 11 (2017) 062

Published: Nov 10, 2017

e-Print:

1705.03374 [hep-ex]

DOI:

10.1007/JHEP11(2017)062

Report number:

CERN-EP-2017-057

Experiments:

CERN-LHC-ATLAS

View in:

reference search27 citations

Citations per year

Abstract: (Springer)

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

\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.

Note:

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/

B physics
Hadron-Hadron scattering (experiments)
p p: scattering
p p: colliding beams
heavy quark: production
channel cross section: measured
B: pair production
ATLAS
differential cross section: measured
mass dependence

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