Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Kaon B-Parameter in Staggered Chiral Perturbation Theory   We calculate the kaon B-parameter, B_K, to next-to-leading order in staggered
chiral perturbation theory. We extend the usual power counting to include the
effects of using perturbative (rather than non-perturbative) matching factors.
Taste breaking enters through the O(a^2) terms in the effective action, through
mixing with higher-dimension operators, and through the truncation of matching
factors. These effects cause mixing with several additional operators,
complicating the chiral and continuum extrapolations. We summarize the results
here; all details can be found in hep-lat/0507012.

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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: ao-sci
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The categories of this paper are: q-bio
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The categories of this paper are: physics