Abandoning Exact SU(3) in Coupled-Channel Final-State Interactions through Reggeon Exchange for $B\to ππ, K\bar{K}$

Details Abandoning Exact SU(3) in Coupled-Channel Final-State Interactions through Reggeon Exchange for $B\to ππ, K\bar{K}$ Abandoning Exact SU(3) in Coupled-Channel Final-State Interactions through Reggeon Exchange for $B\to ππ, K\bar{K}$

2002-11-08

arxiv.org/abs/hep-ph/0211117v1

Acta Phys.Polon. B34 (2003) 2631-2642

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages 3 figures

Scientific paper

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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