Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 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   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.

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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: cs
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: ao-sci
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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th