Decays into ππK and KKK: Long Distance an Final-State Effects

摘要

The interplay of strong and weak decay amplitudes for B --> ππ^sK and B ->^sKKK, with the 7T7T and KK pairs interacting in isospin-0 S-wave, is analyzed for -rnr effective mass from threshold to 1.2 GeV. To improve agreement with experiment of a factorization approach with some QCD corrections, addition of long-distance contributions, called charming penguins is necessary.