Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CP-violating Parameter \epsilon_B in B_d^0-\bar{B}^0_d Mixing   We make an analysis of the phase-convention dependence of the CP-violating
parameter \epsilon_B and give some comments on the reported CLEO and OPAL
constraints on Re\epsilon_B. It is emphasized that \epsilon_B has little
advantage for the study of CP violation in the B^0_d-\bar{B}^0_d system.

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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: astro-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th