Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monopoles, Antimonopoles and Vortex Rings   We present a new class of static axially symmetric solutions of SU(2)
Yang-Mills-Higgs theory, where the Higgs field vanishes on rings centered
around the symmetry axis. Associating a magnetic dipole moment with each Higgs
vortex ring, the dipole moments add for solutions in the trivial topological
sector, whereas they cancel for magnetically charged solutions.

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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ph
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess