Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unstable particle mixing and CP violation in weak decays   We discuss unstable particle mixing in CP-violating weak decays. It is shown
that for a completely degenerate system unstable particle mixing does not
introduce a CP-violating partial rate difference, and that when the mixings are
small only the off-diagonal mixings are relevant. Also, in the absence of
mixing, unstable particle wave function renormalization does not introduce any
additional effect. An illustrative example is given to heavy scalar decays with
arbitrary mixing.

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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
30
The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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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: math
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The categories of this paper are: econ
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The categories of this paper are: patt-sol