Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using Drell-Yan forward-backward asymmetry to reduce PDF uncertainties
  in the measurement of electroweak parameters   The uncertainties in Parton Distribution Functions (PDFs) are the dominant
source of the systematic uncertainty in precision measurements of electroweak
parameters at hadron colliders (e.g. $\sin^2\theta_{eff}(M_Z)$,
$\sin^2\theta_{W}=1-M_W^2/M_Z^2$ and the mass of the W boson). We show that
measurements of the forward-backward charge asymmetry ($A_{FB}(M,y)$) of
Drell-Yan dilepton events produced at hadron colliders provide a new powerful
tool to reduce the PDF uncertainties in these measurements.

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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: cond-mat