Charming penguin contributions to B => K π

Details Charming penguin contributions to B => K π Charming penguin contributions to B => K π

2001-01-11

arxiv.org/abs/hep-ph/0101118v2

Phys.Rev.D64:014029,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages LaTeX (uses RevTeX and epsfig), 3 figures. Corrected typos. To appear in Physical Review D

Scientific paper

10.1103/PhysRevD.64.014029

We present calculations of the charming-penguin long-distance contributions to B => K \pi decays due to intermediate charmed meson states. Our calculation is based on the Chiral Effective Lagrangean for light and heavy mesons, corrected for the hard pion and kaon momenta. We find that the charming-penguin contributions increase significantly the B => K \pi decay rates in comparison with the short-distance contributions, giving results in better agreement with experimental data.

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