Charming penguin contributions to charmless B decays into two pseudoscalar mesons

Details Charming penguin contributions to charmless B decays into two pseudoscalar mesons Charming penguin contributions to charmless B decays into two pseudoscalar mesons

2001-10-31

arxiv.org/abs/hep-ph/0110411v2

Phys.Rev. D65 (2002) 094005

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures, LaTeX2e with epsfig. Minor changes in the text, this version will appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.65.094005

We present estimates of the charming penguin contribution to B => K pi, pi pi,K eta, K eta' decays due to intermediate charmed meson states. We find that this contribution is indeed significant for B => K pi 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 theoretical 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 also compute CP asymmetries for B => K pi, pi pi decays and we obtain rather large results.

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