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We present estimates of the charming penguin contribution to B => K pi, pipi,K eta, K eta' decays due to intermediate charmed meson states. We find thatthis contribution is indeed significant for B => K pi decays, and itsinclusion, together with the tree and penguin terms, produces large branchingratios in agreement with data, though the analysis is affected by largetheoretical uncertainties. On the other hand, for B => pi pi, K eta, K eta'decays, the effect of the charming penguin contribution is more modest. We alsocompute CP asymmetries for B => K pi, pi pi decays and we obtain rather largeresults.

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Charming penguin contributions to charmless<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>decays into two pseudoscalar mesons

Charming penguin contributions to charmlessBdecays into two pseudoscalar mesons