$B \to η(η') K(π)$ in the Standard Model with Flavor Symmetry

Details $B \to η(η') K(π)$ in the Standard Model with Flavor Symmetry $B \to η(η') K(π)$ in the Standard Model with Flavor Symmetry

2003-04-25

arxiv.org/abs/hep-ph/0304242v2

Phys.Rev. D69 (2004) 074002

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 4 tables

Scientific paper

10.1103/PhysRevD.69.074002

The observed branching ratios for $B\to K \eta'$ decays are much larger than factorization predictions in the Standard Model (SM). Many proposals have been made to reconcile the data and theoretical predictions. In this paper we study these decays within the SM using flavor U(3) symmetry. If small annihilation amplitudes are neglected, one needs 11 hadronic parameters to describe $B\to PP$ decays where $P$ can be one of the $\pi$, $K$, $\eta$ and $\eta'$ nonet mesons. We find that existing data are consistent with SM with flavor U(3) symmetry. We also predict several measurable branching ratios and CP asymmetries for $B \to K (\pi) \eta(\eta')$, $\eta(\eta')\eta(\eta')$ decays. Near future experiments can provide important tests for the Standard Model with flavor U(3) symmetry.

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