Measurement of theb-hadron production cross section using decays toμ−D0Xfinal states inpp¯collisions ats=1.96  TeV

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doi:10.1103/physrevd.79.092003

Abstract

We report a measurement of the production cross section for b hadrons in pp¯ collisions at s=1.96 TeV. Using a data sample derived from an integrated luminosity of 83 pb−1 collected with the upgraded Collider Detector (CDF II) at the Fermilab Tevatron, we analyze b hadrons, Hb, partially reconstructed in the semileptonic decay mode Hb→μ−D0X. Our measurement of the inclusive production cross section for b hadrons with transverse momentum pT>9 GeV/c and rapidity |y|<0.6 is σ=1.30 μb±0.05 μb(stat)±0.14 μb(syst)±0.07 μb(B), where the uncertainties are statistical, systematic, and from branching fractions, respectively. The differential cross sections dσ/dpT are found to be in good agreement with recent measurements of the Hb cross section and well described by fixed-order next-to-leading logarithm predictions.3 MoreReceived 11 March 2009DOI:https://doi.org/10.1103/PhysRevD.79.092003©2009 American Physical Society

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