Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Update of the NNLO PDFs in the 3-, 4-, and 5-flavour scheme   We report on an update of the next-to-next-to-leading order (NNLO) ABKM09
parton distributions functions. They are obtained with the use of the combined
HERA collider Run I inclusive deep-inelastic scattering (DIS) data and the
partial NNLO corrections to the heavy quark electro-production taken into
account. The value of the strong couplig constant $\alpha^{\rm NNLO}_{\rm
s}(M_{\rm Z})=0.1147(12)$ is obtained. The standard candle cross sections for
the Tevatron collider and the LHC estimated with the updated PDFs are provided.

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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
4
The categories of this paper are: cond-mat
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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: nucl-ex