# Measurement of the b-Hadron Production Cross Section Using Decays to mu^- D^0 X Final States in ppbar Collisions at sqrt s = 1.96 TeV

Abstract : We report a measurement of the production cross section for b hadrons in p-pbar collisions at sqrt{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, H_b, partially reconstructed in the semileptonic decay mode H_b -> mu^- D^0 X. Our measurement of the inclusive production cross section for b hadrons with transverse momentum p_T > 9 GeV/c and rapidity |y|<0.6 is sigma = 1.30 mub +/- 0.05 mub(stat) +/- 0.14 mub (syst) +/- 0.07 mub (B), where the uncertainties are statistical, systematic, and from branching fractions respectively. The differential cross sections dsigma/dp_T are found to be in good agreement with recent measurements of the H_b cross section and well described by fixed-order next-to-leading logarithm predictions.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00368655
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Submitted on : Tuesday, March 17, 2009 - 10:46:37 AM
Last modification on : Wednesday, October 27, 2021 - 2:00:14 PM

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### Citation

T. Aaltonen, J. Adelman, T. Akimoto, B. Alvarez Gonzalez, S. Amerioy, et al.. Measurement of the b-Hadron Production Cross Section Using Decays to mu^- D^0 X Final States in ppbar Collisions at sqrt s = 1.96 TeV. Physical Review D, American Physical Society, 2009, 79, pp.092003. ⟨10.1103/PhysRevD.79.092003⟩. ⟨in2p3-00368655⟩

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