Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Abandoning Exact SU(3) in Coupled-Channel Final-State Interactions
  through Reggeon Exchange for $B\to \pi\pi, K\bar{K}$   For weak decays $B_d^{0}\to \pi\pi$ and $K\bar{K}$ the effects of SU(3)
breaking in coupled-channel final-state interaction effects are discussed in a
Regge framework. It is shown that SU(3) breaking in the inelastic final-state
transitions dramatically affects the phases of the isospin $I=0,1,2$ amplitudes
in the $B_d^{0}$ decays. The effect of the singlet penguin diagram on these
phases is studied. Furthermore, on the example of the $B_d^{0}\to \pi\pi$
decays, the dependence of CP asymmetries on the size of penguin amplitude is
analyzed.

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The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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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: cond-mat
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The categories of this paper are: cs
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The categories of this paper are: astro-ph
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The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph