Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Outcome from Spontaneous CP Violation for B Decays   In the aspon model solution of the strong $CP$ problem, there is a gauged
$U(1)$ symmetry, spontaneously broken by the same vacuum expectation value
which breaks $CP$, whose massive gauge boson provides an additional mechanism
of weak $CP$ violation. We calculate the $CP$ asymmetries in $B$ decays for the
aspon model and show that they are typically smaller than those predicted from
the standard model. A linear relation between the $CP$ asymmetries of different
decay processes is obtained.

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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an