Charming penguin contributions to charmless B decays into two pseudoscalar mesons

We present estimates of the charming penguin contribution to B → Kπ, ππ,Kη,Kη′ decays due to intermediate charmed meson states. We find that this contribution is indeed significant for B → Kπ decays and its inclusion, together with the tree and penguin terms, produces large branching ratios in agreement with data, though the analysis is affected by large… (More)