Abstract
We estimate the density matrix element for the pi(0), eta, and eta(') production from the vacuum in the large-N(c) limit. As a consequence, we find that the QCD axial anomaly leads to highly nontrivial corrections to the usual flavor SU(3) relations between B(0)-->K(0)pi(0), B(0)-->K(0) eta, and B(0)-->K(0)eta(') decay amplitudes. These corrections may explain why the B-->Keta(') branching ratio is about 6 times larger than the B-->Kpi one.
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