Measurement of the differential cross-section of B+ meson production in pp collisions at sqrt(s) = 7 TeV at ATLAS

Abstract

The production cross-section of B+ mesons is measured as a function of transverse momentum pT and rapidity y in proton--proton collisions at center-of-mass energy sqrt(s) = 7 TeV, using 2.4 fb-1 of data recorded with the ATLAS detector at the Large Hadron Collider. The differential production cross-sections, determined in the range 9<pT<120 GeV and y<2.25, are compared to next-to-leading-order theoretical predictions.

20 pages plus author list (44 pages total), 6 figures, 5 tables, submitted to JHEP. Version corresponds to published paper. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2012-05

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• PYTHIA 6.4 Physics and Manual
• New parton distributions for collider physics
• Implications of CTEQ global analysis for collider observables
• Measurement of the Lambda(b) cross section and the anti-Lambda(b) to Lambda(b) ratio with Lambda(b) to J/Psi Lambda decays in pp collisions at sqrt(s) = 7 TeV
• Measurement of the B+- production cross-section in pp collisions at sqrt(s)=7 TeV
• Measurement of the b-hadron production cross section using decays to D*muX final states in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Measurement of the cross section for production of b b-bar X, decaying to muons in pp collisions at sqrt(s)=7 TeV

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