Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field Theoretic Branes and Tachyons of the QCD String   Dvali and Shifman have proposed a field-theoretic mechanism for localizing
gauge fields to "branes" in higher dimensional spaces using confinement in a
bulk gauge theory. The resulting objects have a number of qualitative features
in common with string theory D-branes; they support a gauge field and flux
strings can end on them. In this letter, we explore this analogy further, by
considering what happens when N of these "branes" approach each other. Unlike
in the case of D-branes, we find a reduction of the gauge symmetry as the
"branes" overlap. This can be attributed to a tachyonic instability of the flux
string stretching between the branes.

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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: funct-an
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The categories of this paper are: cond-mat
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: cs