Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical Parton Distributions for alpha_{S} Determinations   Precise determinations of the strong coupling constant in hadronic collisions
demand sets of parton densities spanning a sufficiently wide range of values
for the QCD scale parameter Lambda. For such applications, we supplement the
recent GRV parametrization by five sets of dynamically generated parton
distributions for Lambda-values corresponding to alpha_{S}(M_{Z}^{2}) between
0.104 and 0.122. Present DIS data, including recent small-x HERA results, do
not appreciably discriminate between these sets.

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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: mtrl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: physics