Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perturbative Renormalization Factors of Quark Bilinear Operators for
  Domain-wall QCD   We calculate one-loop renormalization factors of bilinear operators made of
physical quark fields for domain-wall QCD. We find that finite parts of such
renormalization factors have reasonable values at 1-loop except an overlap
factor between the physical quark field and the zero mode in the theory. We
point out that the 1-loop estimate of overall renormalization factors becomes
unreliable at the coupling where numerical simulations are currently performed,
due to the presence of this overlap factor. We show that this problem
disappears if the mean-field improved perturbation theory is employed for
renormalization factors.

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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn