Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for standard-model Z and Higgs bosons decaying into a
  bottom-antibottom quark pair in proton-antiproton collisions at 1.96 TeV   The Collider Detector at Fermilab collected a unique sample of jets
originating from bottom-quark fragmentation ($b$-jets) by selecting online
proton-antiproton ($p\bar{p}$) collisions with a vertex displaced from the
$p\bar{p}$ interaction point, consistent with the decay of a bottom-quark
hadron. This data set, collected at a center-of-mass energy of $\sqrt{s}=$1.96
TeV, and corresponding to an integrated luminosity of $5.4~\rm{fb}^{-1}$, is
used to measure the $Z$-boson production cross section times branching ratio
into $b\bar{b}$. The number of $Z\rightarrow b\bar{b}$ events is determined by
fitting the dijet-mass distribution while constraining the dominant $b$-jet
background, originating from QCD multijet events, with data. The result,
$\sigma(p\bar{p} \rightarrow Z) \times \mathcal{B}(Z \rightarrow b\bar{b})=
1.11\pm 0.08(\text{stat}) \pm 0.14(\text{syst})~\text{nb}$, is the most precise
measurement of this process, and is consistent with the standard-model
prediction. The data set is also used to search for Higgs-boson production. No
significant signal is expected in our data and the first upper limit on the
cross section for the inclusive $p\bar p \rightarrow H\rightarrow b\bar b$
process at $\sqrt{s}=$1.96 TeV is set, corresponding to 33 times the expected
standard-model cross section, or $\sigma = 40.6$ pb, at the 95\% confidence
level.

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The categories of this paper are: econ
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
10
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: adap-org
3
The categories of this paper are: physics
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The categories of this paper are: cond-mat
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The categories of this paper are: eess
34
The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph