Charming penguin contributions to B ---> K pi
Jan, 2001
13 pages
Published in:
- Phys.Rev.D 64 (2001) 014029
e-Print:
- hep-ph/0101118 [hep-ph]
Report number:
- BA-TH-404-00,
- NAPOLI-DSF-2000-37
Citations per year
Abstract:
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.- B: hadronic decay
- pseudoscalar meson: pair production
- K
- pi
- effect: penguin
- amplitude analysis
- Feynman graph
- charmed meson: intermediate state
- form factor
- B: branching ratio
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