Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semilocal strings and monopoles   A variation on the abelian Higgs model, with global SU(2) x local U(1)
symmetry broken to global U(1) was recently shown by Vachaspati and Achucarro
to admit stable, finite energy cosmic string solutions even though the manifold
of minima of the potential energy does not have non-contractible loops. Here
the most general solutions, both in the single and multi-vortex cases, are
described in the Bogomol'nyi limit. The gravitational field of the vortices
considered as cosmic strings is obtained and monopole-like solutions surrounded
by an event horizon are found.

18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg