Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: NLO QCD corrections to Z b anti-b production with massive bottom quarks
  at the Fermilab Tevatron   We calculate the Next-to-Leading Order (NLO) QCD corrections to Z b anti-b
production in hadronic collisions including full bottom-quark mass effects. We
present results for the total cross section and the invariant mass distribution
of the bottom-quark jet pair at the Fermilab Tevatron p anti-p collider. We
perform a detailed comparison with a calculation that considers massless bottom
quarks, as implemented in the Monte Carlo program MCFM. We find that neglecting
bottom-quark mass effects overestimates the total NLO QCD cross section for Z b
anti-b production at the Tevatron by about 7%, independent of the choice of the
renormalization and factorization scales. Moreover, bottom-quark mass effects
can impact the shape of the bottom-quark pair invariant mass distribution, in
particular in the low invariant mass region.

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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con