Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reevaluation of the parton distribution of strange quarks in the nucleon   An earlier extraction from the HERMES experiment of the polarization-averaged
parton distribution of strange quarks in the nucleon has been reevaluated using
final data on the multiplicities of charged kaons in semi-inclusive
deep-inelastic scattering obtained with a kinematically more comprehensive
method of correcting for experimental effects. General features of the
distribution are confirmed, but the rise at low x is less pronounced than
previously reported.

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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin