Measurement of the b-hadron production cross section using decays to μD0X final states in pp¯ collisions at s=1.96TeV

T. Aaltonen et al. (CDF Collaboration)
Phys. Rev. D 79, 092003 – Published 18 May 2009

Abstract

We report a measurement of the production cross section for b hadrons in pp¯ collisions at s=1.96TeV. Using a data sample derived from an integrated luminosity of 83pb1 collected with the upgraded Collider Detector (CDF II) at the Fermilab Tevatron, we analyze b hadrons, Hb, partially reconstructed in the semileptonic decay mode HbμD0X. Our measurement of the inclusive production cross section for b hadrons with transverse momentum pT>9GeV/c and rapidity |y|<0.6 is σ=1.30μb±0.05μb(stat)±0.14μb(syst)±0.07μb(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.

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  • Received 11 March 2009

DOI:https://doi.org/10.1103/PhysRevD.79.092003

©2009 American Physical Society

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Vol. 79, Iss. 9 — 1 May 2009

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