Compact Muon Solenoid
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| CMS-SMP-13-004 ; CERN-PH-EP-2014-005 | ||
| Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at $\sqrt{s}$ = 7 TeV | ||
| CMS Collaboration | ||
| 7 February 2014 | ||
| J. High Energy Phys. 06 (2014) 120 | ||
| Abstract: The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 inverse-femtobarns. The Z(ll)+b-jets cross sections (where ll = $\mu\mu$ or ee) are measured for a Z boson produced with exactly one or at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MadGraph event generator using the Pythia parton shower simulation. | ||
| Links: e-print arXiv:1402.1521 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; HepData record ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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