Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strangeness in the Meson Cloud Model   I review progress in calculating strange quark and antiquark distributions of
the nucleon using the meson cloud model. This progress parallels that of the
meson cloud model, which is now a useful theoretical basis for understanding
symmetry breaking in nucleon parton distribution functions. I examine the
breaking of symmetries involving strange quarks and antiquarks, including quark
- antiquark symmetry in the sea, SU(3) flavour symmetry and SU(6) spin-flavour
symmetry.

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The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: q-alg
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc