| Document(s) |
Web Page
hep-ex/0812.4458
Phys.Rev.D79:052008,2009.
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| Contact(s) |
B. Heinemann and A. Mehta
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| Abstract |
A measurement of the bjet production cross section is presented for events containing a Z boson produced in p-pbar collisions at sqrt(s)=1.96 TeV, using data corresponding to an integrated luminosity of 2 fb-1 collected by the CDF II detector at the Tevatron. Z bosons are selected in the electron and muon decay modes. Jets are considered with transverse energy E_T>20 GeV and pseudorapidity |eta|<1.5 and are identified as bjets using a secondary vertex algorithm. The ratio of the integrated Z+bjet cross section to the inclusive Z production cross section is measured to be {3.32 +/- 0.53 (stat.) +/- 0.42 (syst.)}x 10-3. This ratio is also measured differentially in jet E_T, jet eta, Z-boson transverse momentum, number of jets, and number of bjets. The predictions from leading order Monte Carlo generators and next-to-leading-order QCD calculations are found to be consistent with the measurements within experimental and theoretical uncertainties.
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| Comments |
Last Update: December 2008 Dataset: ~2.0 fb-1
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