Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the ratio of differential cross sections {\sigma}(ppbar
  -> Z + b jet)/{\sigma}(ppbar -> Z + jet) in ppbar collisions at sqrt(s)=1.96
  TeV   We measure the ratio of cross sections, {\sigma}(ppbar -> Z + b
jet)/{\sigma}(ppbar -> Z + jet), for associated production of a Z boson with at
least one jet. The ratio is also measured as a function of the jet transverse
momentum, jet pseudorapidity, Z boson transverse momentum, and the azimuthal
angle between the Z boson and the closest jet for events with at least one b
jet. These measurements use data collected by the D0 experiment in Run II of
Fermilab's Tevatron ppbar Collider at a center-of-mass energy of 1.96 TeV, and
correspond to an integrated luminosity of 9.7 fb$^{-1}$. The results are
compared to predictions from next-to-leading order calculations and various
Monte Carlo event generators.

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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: hep-th
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: math